CN105787401A - Identity identification method used for petroleum drilling rod operation - Google Patents
Identity identification method used for petroleum drilling rod operation Download PDFInfo
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- CN105787401A CN105787401A CN201410829390.3A CN201410829390A CN105787401A CN 105787401 A CN105787401 A CN 105787401A CN 201410829390 A CN201410829390 A CN 201410829390A CN 105787401 A CN105787401 A CN 105787401A
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- 238000005553 drilling Methods 0.000 title claims abstract description 179
- 238000000034 method Methods 0.000 title claims abstract description 74
- 239000003208 petroleum Substances 0.000 title abstract 3
- 239000003550 marker Substances 0.000 claims description 189
- 238000010438 heat treatment Methods 0.000 claims description 56
- 239000000463 material Substances 0.000 claims description 43
- 238000012937 correction Methods 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 10
- 229910002056 binary alloy Inorganic materials 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 12
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 16
- 230000005284 excitation Effects 0.000 description 13
- 238000002372 labelling Methods 0.000 description 12
- 230000014759 maintenance of location Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- 238000012795 verification Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000205 computational method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
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- Theoretical Computer Science (AREA)
- Earth Drilling (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses an identity identification method used for petroleum drilling rod operation. The identity identification method is characterized in that magnetic mark processing of specific local parts of drilling rods can be carried out; the changes of the magnetic characteristics of the specific local parts can be detected; when the abnormal values of the magnetic characteristics are detected, the magnetic marks of the drilling rods are detected, and then the codes of the drilling rods can be acquired based on the information such as position, width, and/or magnetic abnormity amplitude of the magnetic marks. The identity identification method is advantageous in that firstly, the realization is simple, and the codes of the drilling rods can be acquired based on the information such as position, width, and/or magnetic abnormity amplitude of the magnetic marks; secondly, the automatic identification and reading of the machine can be facilitated, especially the automatic on-site identification and reading of the codes during the drilling process can be facilitated; thirdly, the identity information of the petroleum drilling rods can be identified by the codes of the drilling rods, and the filing of every drill rod can be carried out, and therefore the working time of every drilling rod under the conditions of different depths, different pull/pressure forces, vibration, and slurry corrosion can be acquired, the drilling rod classification can be realized scientifically, the well drilling accident can be reduced, the overlarge overmeasure remained during the elimination of the drilling rods can be prevented, and the total costs of the drilling well operation can be reduced.
Description
Technical field
The present invention relates to a kind of personal identification method being applied to oil drill rocker operation.
Background technology
In prior art, oil drill rocker is the important tool of drillng operation, and the length of every drilling rod is about 10 meters, and more piece drilling rod is connected in screw thread mode, and bottom is connected with BHA, and top connection side's drilling rod, the fire hose are first-class.Mud passes through Drill-pipe conveyed to down-hole.In the drillng operation adopting rotating disk to bore, drilling rod the moment of torsion of rig is passed to the drill bit of down-hole.Drilling rod is part the longest in drill string composition.Drilling rod needs in down-hole to stand pulling force, pressure, torsion, vibration, friction, drilling fluid corrosion, it is necessary to the degree of aging of periodical evaluation drilling rod, drilling rod carries out classification accordingly, and eliminates in time and update.At present the classification foundation of drilling rod is included the Thickness sensitivity and the flaw detection that are periodically subject to.If able to drilling rod is filed by root, it is known that every drilling rod is at different drilling conditions, the such as degree of depth, draw/pressure, vibration, mud corrosivity etc. under worked time, hereby it is possible to carry out assessing more comprehensively and accurately to the degree of aging of drilling rod, can effectively reduce drilling failure, the allowance stayed when drilling rod is eliminated can also be avoided excessive, reduce the totle drilling cost of drillng operation.Prior art includes: one, main flow way is to beat numbering at tool joint place steel stamp.This mode is difficult to machine automatically identifying and reading, additionally easily stains mud and greasy dirt, also easily frayed.Two, in tool joint, embed electronic chip, wherein store the numbering of drilling rod, by contact or contactless reading device, read this numbering.The electronic chip adopted in this scheme is difficult to work long hours when down-hole high temperature and high vibration, and spoilage is high.Three, mounting bar shape code (including two-dimensional bar code) in tool joint.Bar code equally exists and easily stains and shortcoming easy to wear.In a word, lack a kind of reliability height at present and be easy to the oil drill rocker personal identification method of recognition.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency, it is provided that a kind of personal identification method being applied to oil drill rocker operation, it is not only with low cost, and reliability is high, and is easy to machine automatically identifying and reading, is particularly easily achieved the on-the-spot recognition in drilling operation course.
To achieve these goals, the technical solution used in the present invention is: a kind of personal identification method being applied to oil drill rocker operation, it is characterised in that including: the specific portion of drilling rod is carried out magnetic marker process；Detect the magnetic characteristic change of described specific portion；When the exceptional value of magnetic characteristic being detected, then the magnetic marker of drilling rod detected, obtain drilling rod coding based on the position of described magnetic marker, width and/or magnetic anomaly amplitude information.
Further, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: is replaced by the material of drilling rod specific portion or is added to the material that magnetic property is different.
Further, the described specific portion to drilling rod carries out the step of magnetic marker process and includes magnetic-field heat treatment, and described magnetic-field heat treatment includes: described specific portion is heated so that it is reach the Curie point of material, using as magnetic marker region；Described magnetic marker region applies the magnetic field of specific direction, and when described magnetic marker region is positioned on the shaft of drilling rod, described specific direction is the magnetic field consistent with the axial direction of drilling rod；When described magnetic marker region is positioned on the joint of drilling rod, described specific direction is the radial direction along joint；Under the action of a magnetic field, described magnetic marker region is incubated, then, carries out controlled cooling, form magnetic marker.
Further, described magnetic marker is arranged on the shaft of drilling rod, and axially aligned, or described magnetic marker is arranged on drilling rod shaft, and circumferentially arranges, or described magnetic marker is arranged in tool joint, and circumferentially arranges.
Further, axial width and the axial location of described magnetic marker is measured by photoelectric encoder.
Further, circumferential width and/or the magnetic anomaly amplitude of described magnetic marker is measured by sensor array.
Further, by being arranged at drilling rod lateral surface, medial surface or surrounding sensor or the sensor array measurement position of described magnetic marker, width and/or the magnetic anomaly amplitude that drilling rod circumferentially arranges.
Further, the step of the magnetic characteristic change of the described specific portion of described detection includes: adopt Hall element, and/or coil detects.
Further, described drilling rod coding includes: encoded radio part and start mark part, wherein, described encoded radio part adopts binary system or multi-system to represent, or adopt Morse code coded system to represent, described start mark part is made up of the hex notation identical with described encoded radio part, or is set to the special marking different from described hex notation.
Further, described drilling rod coding also includes error correction or check part, described error correction or check part and adopts binary system or multi-system to represent, or adopts the coded systems such as Morse code to represent.
The invention have the benefit that
First, realize simple, the specific portion of drilling rod is processed, the magnetic property making this local changes, form several magnetic marker, when the exceptional value of magnetic characteristic being detected, then the magnetic marker of drilling rod detected, obtain drilling rod coding based on the position of magnetic marker, width and/or magnetic anomaly amplitude information.
Second, it is simple to machine automatically identifying and reading, particularly it is prone in drilling process, realize the automatically on-the-spot recognition to coding, reduces artificial demand, the safety of personnel can be improved, it is possible to reduce because manual operation causes the probability of mistake.
3rd, encoded by drilling rod, it is capable of identify that the identity information of oil drill rocker, drilling rod is filed by root, such that it is able to know every drilling rod different depth, draw/condition such as pressure, vibration, mud corrosivity under worked time, it is achieved more scientific drilling rod classification, it is possible to reduce drilling failure, the allowance stayed when drilling rod is eliminated can also be avoided excessive, reduce the totle drilling cost of drillng operation.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, and the schematic description and description of the application is used for explaining the application, is not intended that the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the flow chart of the personal identification method being applied to oil drill rocker operation of the present invention；
Fig. 2 is the first embodiment schematic diagram of the drilling rod coding of method shown in Fig. 1；
Fig. 3 is the second embodiment schematic diagram of the drilling rod coding of method shown in Fig. 1；
Fig. 4 and Fig. 5 is the 3rd embodiment schematic diagram of the drilling rod coding of method shown in Fig. 1；
Fig. 6 is the 4th embodiment schematic diagram of the drilling rod coding of method shown in Fig. 1.
Detailed description of the invention
As employed some vocabulary in the middle of description and claim to censure specific components.Those skilled in the art are it is to be appreciated that hardware manufacturer may call same assembly with different nouns.This specification and claims are not used as distinguishing in the way of assembly by the difference of title, but are used as the criterion distinguished with assembly difference functionally." comprising " as mentioned in the middle of description and claim in the whole text is an open language, therefore should be construed to " comprise but be not limited to "." substantially " referring in acceptable range of error, those skilled in the art can solve described technical problem within the scope of certain error, basically reaches described technique effect.Description subsequent descriptions is implement the better embodiment of the application, and right described description is for the purpose of the rule so that the application to be described, is not limited to scope of the present application.The protection domain of the application is when being as the criterion depending on the defined person of claims.
Embodiment 1
Refer to Fig. 1, the personal identification method being applied to oil drill rocker operation of the present invention includes: S100, and the specific portion of drilling rod is carried out magnetic marker process；S200, detects the magnetic characteristic change of described specific portion；S300, when the exceptional value of magnetic characteristic being detected, then detects the magnetic marker of drilling rod, obtains drilling rod coding based on the position of described magnetic marker, width and/or magnetic anomaly amplitude information.
Preferably, described magnetic characteristic includes pcrmeability, and as specific embodiment, described magnetic-field heat treatment includes improving pcrmeability.
Preferably, described magnetic characteristic includes the squareness ratio of hysteresis curve.As specific embodiment, described magnetic-field heat treatment includes the squareness ratio improving hysteresis curve, or makes pcrmeability keep invariable within the scope of certain magnetic field.In the particular embodiment, adopting longitudinally magnetic heat treatment, the flow direction that namely during heat treatment, magnetic direction is actually used with reading device is identical.Or, adopting transverse magnetic field heat treatment, the flow direction that namely during heat treatment, magnetic direction is actually used with reading device is perpendicular.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: described specific portion is heated so that it is reach or slightly above the Curie point of material, using as magnetic marker region；Applying the magnetic field of specific direction on described magnetic marker region, when described magnetic marker region is positioned on the shaft of drilling rod, described specific direction is the magnetic field consistent with the axial direction of drilling rod；When described magnetic marker region is positioned on the joint of drilling rod, described specific direction is the radial direction along joint；Described magnetic marker region is incubated, then, carries out controlled cooling, form magnetic marker.
Preferably, described specific portion is heated, it is possible to be close to the Curie point of material, namely adopts isothermal magnetic-field heat treatment mode: magnetic marker region is heated to below curie point 50～100 DEG C, keep the temperature constant long period after applying magnetic field, then lower the temperature.
Preferably, during using pcrmeability as magnetic characteristic, as specific embodiment, being heated to 780～830 DEG C slightly above Curie point, behind applying magnetic field, temperature retention time is 30～60min.
Preferably, controlled it is cooled to 300～400 DEG C, Temperature fall, can improve pcrmeability.
Preferably, during using the squareness ratio of hysteresis curve as magnetic characteristic, as specific embodiment, being heated to 600～700 DEG C slightly below Curie point, behind applying magnetic field, temperature retention time is 60～90min, through longitudinally magnetic heat treatment, again with 200 DEG C/time rate of cooling be cooled to 350 DEG C, Temperature fall.
Preferably, controlled cooling respectively with 300 DEG C/time, 280 DEG C/time, 260 DEG C/time be cooled to 200 DEG C, hysteresis curve figure steepening stand, loop line area is substantially reduced.
Preferably, heater can include fired heater and attemperator, it would however also be possible to employ alternating current impression heater.
The change direction that magnetic characteristic is abnormal is relevant with the excitation direction adopted in magnetic-field heat treatment, also relevant with the sensor design of reading device.Labelling can be made to present magnetic characteristic accordingly higher or on the low side.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: the material of drilling rod specific portion is replaced with the material that magnetic property is different.
Preferably, the steel of ad-hoc location are replaced with the material that magnetic property is different by tool joint, such as the metal such as copper, aluminum or its alloy, or the nonmetallic materials such as high intensity glue, or the permanent magnet material such as neodymium iron boron.The method that the method replaced includes being machined in tool joint produces multiple hole, inserts other material, relies on the positions and dimensions of hole to form coding.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: described specific portion is heated so that it is reach the Curie point of material, using as magnetic marker region；Described magnetic marker region is applied the magnetic field along tool joint radial direction；Under the action of a magnetic field, described magnetic marker region is incubated, then, carries out controlled cooling, form magnetic marker.
Fig. 2 illustrates the magnetic marker of arrangement on the circumference of tool joint, and black part is divided into position and the width indication of different magnetic marker.
Drilling rod coding circumferentially arranges on the end face of the female adapter of certain drilling rod, adopts binary system, and the symbol definition representated by magnetic marker is as follows:
| Magnetic marker fan angle | 0 (without magnetic marker) | 12 |
| Represent symbol | 0 | 1 |
Each symbol occupies 12 degree of segment angles.Symbol be spaced apart 12 degree of segment angles.Using a segment angle for the magnetic marker of 36 degree as start mark.Encoded radio is 12 symbols.There is 1 even parity bit.This drilling rod coded format can represent at most 4096 different values, i.e. 12 power of 2.Encoding in figure and arrange with the direction indicated by arrow, two codings are respectively as follows:
| Encoded radio | Check value | Encoded radio decimal scale |
| Left side coding | 011010111010 | 1 | 1722 |
| Right side coding | 101100111011 | 0 | 2875 |
Preferably, the sensor array by circumferentially arranging in tool joint measures the position of described magnetic marker, width and magnetic anomaly amplitude.
Preferably, the step of the magnetic characteristic change of the described specific portion of described detection includes: adopt Hall element, and/or coil detects.
Preferably, described coil encircling is arranged at drilling rod.
Preferably, described drilling rod coding includes: encoded radio part, start mark part, error correction or check part, wherein, described encoded radio part adopts binary representation with described error correction or check part, or multi-system represents, described start mark part by with described encoded radio part, and/or error correction or the identical hex notation composition of check part, or be set to the special marking different from described hex notation.
The change direction that magnetic characteristic is abnormal is relevant with the excitation direction adopted in magnetic-field heat treatment, also relevant with the sensor design of reading device.Labelling can be made to present magnetic characteristic accordingly higher or on the low side.
Preferably, the encoded radio part that described drilling rod coding includes adopts binary representation with described error correction or check part, or multi-system represents, described start mark part is made up of logical zero and logic 1, or is the special marking all different from logical zero and logic 1.
Preferably, if using binary representation, it is possible to, but it is not limited to represent with the following methods logical zero and logic 1:
Preferably, at ad-hoc location, having magnetic marker is then logic 1, and unmarked is then logical zero.Or it is contrary.
Preferably, at ad-hoc location, distinguishing logical zero and logic 1 with the size of magnetic marker, e.g., being sized larger than decision threshold is then logic 1, is then logical zero less than decision threshold.Or it is contrary.
Preferably, at ad-hoc location, the magnetic characteristic of magnetic marker is more higher than the original value of drill rod materials is then logic 1, and on the low side is then logical zero.Or it is contrary.
Preferably, at ad-hoc location, when the magnetic characteristic of all magnetic marker is all more higher or all on the low side than the original value of drill rod materials, deviation value is then logic 1 higher than decision threshold, is then logical zero lower than decision threshold.Or it is contrary.
Preferably, the spacing between two magnetic marker is then logic 1 more than decision threshold, is then logical zero less than decision threshold.Or it is contrary.
Preferably, it is possible to use start mark determines the original position of coding." ad-hoc location " mentioned above can with start mark for reference standard.
Preferably, the number of bits of encoded radio part determines the numerical range that coding can represent.One 16 binary coded value can represent 65536 different numerical value.
Preferably, it is possible to use the one or more combination of said method, the magnetic marker of multi-system is formed.Such as, the spacing between two magnetic marker has 100mm and 200mm, and width can be 30mm, 50mm, 70mm, then each magnetic marker can be one of following six kinds:
| Width 30 | Width 50 | Width 70 | |
| Spacing 100 | |||:::::::// | |||||:::::// | |||||||:::// |
| Spacing 200 | |||:::::::::::::::::// | |||||:::::::::::::::// | |||||||:::::::::::::// |
The width of each symbology 10mm in table.Vertical line " | " represents this position and have passed through magnetic-field heat treatment, and ": " represents that this position is without magnetic-field heat treatment, oblique stroke " // " it is the part of next labelling.The magnetic marker being 6 systems represented by upper table.One encoded radio being made up of 7 groups of such magnetic marker can represent 279936 different numerical value, i.e. 7 power of 6.
If using multi-system to represent, it is possible to using without magnetic marker (magnetic characteristic is without exception) as logical zero, higher as logic 1 using magnetic characteristic, on the low side as logic 2 using magnetic characteristic, here it is a kind of ternary coded system.Can also be without exception as logical zero using magnetic characteristic, using higher 0.5-1.5 the unit of magnetic characteristic as logic 1, higher 1.5-2.5 unit is as logic 2, more than higher 2.5 units as logic 3, here it is a kind of quaternary coded system.
Preferably, magnetic marker adopts the quaternary, and the symbol definition representated by magnetic marker is as follows:
| Magnetic marker width (mm) | 0 (without magnetic marker) | 50 | 100 | 150 |
| Represent symbol | 0 | 1 | 2 | 3 |
Each symbol be spaced apart 200mm.Using the particular combination 31 of quaternary symbol as start mark.Encoded radio is 8 symbols.Adopt a symbol and verification, the computational methods of check value are 8 symbol step-by-step XORs of encoded radio.This drilling rod coded format can represent at most 65536 different values, i.e. 8 power of 4.Below for efficient coding value example:
| Drilling rod encodes | Start mark | Encoded radio | Check value | Encoded radio decimal scale |
| 31010311233 | 31 | 01031123 | 3 | 4955 |
| 31131023002 | 31 | 13102300 | 2 | 29872 |
| 31200112321 | 31 | 20011232 | 1 | 33134 |
| 31102231210 | 31 | 10223121 | 0 | 19161 |
The personal identification method of the present embodiment can also be applied to oil pipe and other downhole tool.
Embodiment 2
The personal identification method being applied to oil drill rocker operation of the present embodiment includes: S100, and the specific portion of drilling rod is carried out magnetic marker process；S200, detection has the magnetic characteristic change of described specific portion；S300, when the exceptional value of magnetic characteristic being detected, then detects the magnetic marker of drilling rod, obtains drilling rod coding based on the position of described magnetic marker, width and/or magnetic anomaly amplitude information.
Preferably, described magnetic characteristic includes pcrmeability, and as specific embodiment, described magnetic-field heat treatment includes improving pcrmeability.
Preferably, described magnetic characteristic includes the squareness ratio of hysteresis curve.As specific embodiment, described magnetic-field heat treatment includes the squareness ratio improving hysteresis curve, or makes pcrmeability keep invariable within the scope of certain magnetic field.In the particular embodiment, adopting longitudinal heat treatment, the flow direction that namely during heat treatment, magnetic direction is actually used with drilling rod is identical.Or, adopting transverse magnetic field heat treatment, the flow direction that namely during heat treatment, magnetic direction is actually used with drilling rod is perpendicular.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: described specific portion is heated so that it is reach or slightly above the Curie point of material, using as magnetic marker region；Applying the magnetic field of specific direction on described magnetic marker region, when described magnetic marker region is positioned on the shaft of drilling rod, described specific direction is the magnetic field consistent with the axial direction of drilling rod；When described magnetic marker region is positioned on the joint of drilling rod, described specific direction is the radial direction along joint；Described magnetic marker region is incubated, then, carries out controlled cooling, form magnetic marker.
Preferably, during using pcrmeability as magnetic characteristic, as specific embodiment, being heated to 780～830 DEG C slightly above Curie point, temperature retention time is 30～60min.
Preferably, controlled it is cooled to 300～400 DEG C, Temperature fall, can improve pcrmeability.
Preferably, during using the squareness ratio of hysteresis curve as magnetic characteristic, as specific embodiment, being heated to 600～700 DEG C slightly below Curie point, temperature retention time is 60～90min, through longitudinally magnetic heat treatment, again with 200 DEG C/time rate of cooling be cooled to 350 DEG C, Temperature fall.
Preferably, controlled cooling respectively with 300 DEG C/time, 280 DEG C/time, 260 DEG C/time be cooled to 200 DEG C, hysteresis curve figure steepening stand, loop line area is substantially reduced.
Preferably, heater can include fired heater and attemperator, it would however also be possible to employ alternating current impression heater.
The change direction that magnetic characteristic is abnormal is relevant with the excitation direction adopted in magnetic-field heat treatment, also relevant with the sensor design of reading device.Labelling can be made to present magnetic characteristic accordingly higher or on the low side.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: the material of drilling rod specific portion is replaced with the material that magnetic property is different.
Preferably, the steel of ad-hoc location are replaced with the material that magnetic property is different by tool joint, such as the metal such as copper, aluminum or its alloy, or the nonmetallic materials such as high intensity glue.The method replaced is that the method being machined in tool joint produces multiple hole, inserts other material, relies on the positions and dimensions of hole to form coding.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: described specific portion is heated so that it is reach or slightly above the Curie point of material, using as magnetic marker region；Described magnetic marker region applies the magnetic field consistent with tool joint radial direction；Described magnetic marker region is incubated.
Fig. 3 illustrates the another kind of embodiment of the magnetic marker of arrangement on the circumference of tool joint, and black part is divided into position and the width indication of different magnetic marker.
Drilling rod coding circumferentially arranges on the end face of certain drill pipe box, adopts the quaternary, in the such as figure of the symbol definition representated by magnetic marker shown in right side.
Each symbol occupies the segment angle of 36 degree, including the fixed interval of 12 degree of segment angles.Using a segment angle for the magnetic marker of 60 degree as start mark.Encoded radio is 8 symbols.No parity check and error correction.This drilling rod coded format can represent at most 65536 different values, i.e. 8 power of 4.Encoded radio in the present embodiment is the quaternary 13021032, i.e. decimal scale 29262.
For those skilled in the art, equally possible other downhole tool to having same or like female connector is encoded, thus realizing the identification to these downhole tools.
Preferably, the sensor array by circumferentially arranging in tool joint measures the position of described magnetic marker, width and magnetic anomaly amplitude.
Preferably, the step of the magnetic characteristic change that described detection has described specific portion includes: adopt Hall element, and/or coil detects.
Preferably, described coil encircling is arranged at drilling rod, or is arranged at the side of drilling rod.
Preferably, described drilling rod coding includes: encoded radio part, start mark part, error correction or check part, wherein, described encoded radio part adopts binary representation with described error correction or check part, or multi-system represents, described start mark part by with described encoded radio part, and/or error correction or the identical hex notation composition of check part, or be set to the special marking different from described hex notation.
The change direction that magnetic characteristic is abnormal is relevant with the excitation direction adopted in magnetic-field heat treatment, also relevant with the sensor design of reading device.Labelling can be made to present magnetic characteristic accordingly higher or on the low side.
Preferably, the encoded radio part that described drilling rod coding includes adopts binary representation with described error correction or check part, or multi-system represents, described start mark part is made up of logical zero and logic 1, or is the special marking all different from logical zero and logic 1.
Preferably, if using binary representation, it is possible to, but it is not limited to represent with the following methods logical zero and logic 1:
Preferably, at ad-hoc location, having magnetic marker is then logic 1, and unmarked is then logical zero.Or it is contrary.
Preferably, at ad-hoc location, distinguishing logical zero and logic 1 with the size of magnetic marker, e.g., being sized larger than decision threshold is then logic 1, is then logical zero less than decision threshold.Or it is contrary.
Preferably, at ad-hoc location, the magnetic characteristic of magnetic marker is more higher than the original value of drill rod materials is then logic 1, and on the low side is then logical zero.Or it is contrary.
Preferably, at ad-hoc location, when the magnetic characteristic of all magnetic marker is all more higher or all on the low side than the original value of drill rod materials, deviation value is then logic 1 higher than decision threshold, is then logical zero lower than decision threshold.Or it is contrary.
Preferably, the spacing between two magnetic marker is then logic 1 more than decision threshold, is then logical zero less than decision threshold.Or it is contrary.
Preferably, it is possible to use start mark determines the original position of coding." ad-hoc location " mentioned above can with start mark for reference standard.
Preferably, the number of bits of encoded radio part determines the numerical range that coding can represent.One 16 binary coded value can represent 65536 different numerical value.
Preferably, it is possible to use the one or more combination of said method, the magnetic marker of multi-system is formed.Such as, the spacing between two magnetic marker has 100mm and 200mm, and width can be 30mm, 50mm, 70mm, then each magnetic marker can be one of following six kinds:
| Width 30 | Width 50 | Width 70 | |
| Spacing 100 | |||:::::::// | |||||:::::// | |||||||:::// |
| Spacing 200 | |||:::::::::::::::::// | |||||:::::::::::::::// | |||||||:::::::::::::// |
The width of each symbology 10mm in table.Vertical line " | " represents this position and have passed through magnetic-field heat treatment, and ": " represents that this position is without magnetic-field heat treatment, oblique stroke " // " it is the part of next labelling.The magnetic marker being 6 systems represented by upper table.One encoded radio being made up of 7 groups of such magnetic marker can represent 279936 different numerical value, i.e. 7 power of 6.
If using multi-system to represent, it is possible to using without magnetic marker (magnetic characteristic is without exception) as logical zero, higher as logic 1 using magnetic characteristic, on the low side as logic 2 using magnetic characteristic, here it is the coded system of a kind of system.Can also be without exception as logical zero using magnetic characteristic, using higher 0.5-1.5 the unit of magnetic characteristic as logic 1, higher 1.5-2.5 unit is as logic 2, more than higher 2.5 units as logic 3, here it is a kind of quaternary coded system.
Preferably, magnetic marker adopts the quaternary, and the symbol definition representated by magnetic marker is as follows:
| Magnetic marker width (mm) | 0 (without magnetic marker) | 50 | 100 | 150 |
| Represent symbol | 0 | 1 | 2 | 3 |
Each symbol be spaced apart 200mm.Using the particular combination 31 of quaternary symbol as start mark.Encoded radio is 8 symbols.Adopt a symbol and verification, the computational methods of check value are 8 symbol step-by-step XORs of encoded radio.This drilling rod coded format can represent at most 65536 different values, i.e. 8 power of 4.Below for efficient coding value example:
| Drilling rod encodes | Start mark | Encoded radio | Check value | Encoded radio decimal scale |
| 31010311233 | 31 | 01031123 | 3 | 4955 |
| 31131023002 | 31 | 13102300 | 2 | 29872 |
| 31200112321 | 31 | 20011232 | 1 | 33134 |
| 31102231210 | 31 | 10223121 | 0 | 19161 |
The personal identification method of the present embodiment can also be applied to oil pipe and other downhole tool.
Embodiment 3
The personal identification method being applied to oil drill rocker operation of the present embodiment includes: S100, and the specific portion of drilling rod is carried out magnetic marker process；S200, detection has the magnetic characteristic change of described specific portion；S300, when the exceptional value of magnetic characteristic being detected, then detects the magnetic marker of drilling rod, obtains drilling rod coding based on the position of described magnetic marker, width and/or magnetic anomaly amplitude information.
Preferably, described magnetic characteristic includes pcrmeability, and as specific embodiment, described magnetic-field heat treatment includes improving pcrmeability.
Preferably, described magnetic characteristic includes the squareness ratio of hysteresis curve.As specific embodiment, described magnetic-field heat treatment includes the squareness ratio improving hysteresis curve, or makes pcrmeability keep invariable within the scope of certain magnetic field.In the particular embodiment, adopting longitudinal heat treatment, the flow direction that namely during heat treatment, magnetic direction is actually used with drilling rod is identical.Or, adopting transverse magnetic field heat treatment, the flow direction that namely during heat treatment, magnetic direction is actually used with drilling rod is perpendicular.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: described specific portion is heated so that it is reach or slightly above the Curie point of material, using as magnetic marker region；Applying the magnetic field of specific direction on described magnetic marker region, when described magnetic marker region is positioned on the shaft of drilling rod, described specific direction is the magnetic field consistent with the axial direction of drilling rod；When described magnetic marker region is positioned on the joint of drilling rod, described specific direction is the radial direction along joint；Described magnetic marker region is incubated, then, carries out controlled cooling, to form magnetic marker.
Preferably, during using pcrmeability as magnetic characteristic, as specific embodiment, being heated to 780～830 DEG C slightly above Curie point, temperature retention time is 30～60min.
Preferably, controlled it is cooled to 300～400 DEG C, Temperature fall, can improve pcrmeability.
Preferably, during excitation, use the permanent magnet (such as ndfeb magnet) of high energy product to make pcrmeability improve 10%, use the permanent magnet (such as alnico magnet) of low magnetic energy product to make pcrmeability improve 5%.
Preferably, during using the squareness ratio of hysteresis curve as magnetic characteristic, as specific embodiment, being heated to 600～700 DEG C slightly below Curie point, temperature retention time is 60～90min, through longitudinally magnetic heat treatment, again with 200 DEG C/time rate of cooling be cooled to 350 DEG C, Temperature fall.
Preferably, controlled cooling respectively with 300 DEG C/time, 280 DEG C/time, 260 DEG C/time be cooled to 200 DEG C, hysteresis curve figure steepening stand, loop line area is substantially reduced.
Preferably, heater can include fired heater and attemperator, it would however also be possible to employ alternating current impression heater.
The change direction that magnetic characteristic is abnormal is relevant with the excitation direction adopted in magnetic-field heat treatment, also relevant with the sensor design of reading device.Labelling can be made to present magnetic characteristic accordingly higher or on the low side.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: the material of drilling rod specific portion is replaced with the material that magnetic property is different.
Preferably, the steel of ad-hoc location are replaced with the material that magnetic property is different by tool joint, such as the metal such as copper, aluminum or its alloy, or the nonmetallic materials such as high intensity glue.The method replaced is that the method being machined in tool joint produces multiple hole, inserts other material, relies on the positions and dimensions of hole to form coding.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: described specific portion is heated so that it is reach or slightly above the Curie point of material, using as magnetic marker region；Described magnetic marker region applies the magnetic field consistent with the axial direction of drilling rod；Described magnetic marker region is incubated.
Fig. 4 and Fig. 5 illustrates in magnetic marker axially aligned with drilling rod, and black part is divided into the different position of magnetic marker, width and the signal of pcrmeability abnormal amplitudes.
As shown in Figure 4, drilling rod encodes along drilling rod shaft axially-aligned.Adopt ternary.Magnetic marker is by the different pcrmeability abnormal amplitudes of different excitation strength derived value, and its representative symbol definition is as follows:
| Pcrmeability abnormal amplitudes | 0 (without magnetic marker) | + 5% | + 10% |
| Represent symbol | 0 | 1 | 2 |
Interval between width and the symbol of each symbol is 50mm.Using the particular combination 201 of ternary symbol as start mark.Encoded radio is 13 symbols.Adopting the verification of a symbol, check value respectively meets the lowest order of sum equal to encoded radio.This drilling rod coded format can represent at most 1594323 different values, i.e. 13 power of 3.Encoded radio in the present embodiment is Binary Zero 210022021102, i.e. decimal scale 419375.
As shown on the left of Fig. 5, drilling rod encodes along drilling rod shaft axially-aligned.Adopt octal system.In symbol definition representated by magnetic marker such as figure shown in right side.
The length of each symbol is 200mm, including the fixed interval of 50mm.Using octal notation 6 as start mark.Encoded radio is 5 symbols.Adopt a symbol and verification, the computational methods of check value are take lowest order symbol after 5 symbols of encoded radio are added.This drilling rod coded format can represent at most 32768 different values, i.e. 5 power of 8.Encoded radio in the present embodiment is octal system 24607, i.e. decimal scale 10631, and check value is 3 (octal system).
Preferably, width and the axial location of described magnetic marker is measured by photoelectric encoder.
Preferably, the step of the magnetic characteristic change that described detection has described specific portion includes: adopt Hall element, and/or coil detects.
Preferably, described coil encircling is arranged at drilling rod, or is arranged at the side of drilling rod.
Preferably, described drilling rod coding includes: encoded radio part, start mark part, error correction or check part, wherein, described encoded radio part adopts binary representation with described error correction or check part, or multi-system represents, described start mark part by with described encoded radio part, and/or error correction or the identical hex notation composition of check part, or be set to the special marking different from described hex notation.
The change direction that magnetic characteristic is abnormal is relevant with the excitation direction adopted in magnetic-field heat treatment, also relevant with the sensor design of reading device.Labelling can be made to present magnetic characteristic accordingly higher or on the low side.
Preferably, the encoded radio part that described drilling rod coding includes adopts binary representation with described error correction or check part, or multi-system represents, described start mark part is made up of logical zero and logic 1, or is the special marking all different from logical zero and logic 1.
Preferably, if using binary representation, it is possible to, but it is not limited to represent with the following methods logical zero and logic 1:
Preferably, at ad-hoc location, having magnetic marker is then logic 1, and unmarked is then logical zero.Or it is contrary.
Preferably, at ad-hoc location, distinguishing logical zero and logic 1 with the size of magnetic marker, e.g., being sized larger than decision threshold is then logic 1, is then logical zero less than decision threshold.Or it is contrary.
Preferably, at ad-hoc location, the magnetic characteristic of magnetic marker is more higher than the original value of drill rod materials is then logic 1, and on the low side is then logical zero.Or it is contrary.
Preferably, at ad-hoc location, when the magnetic characteristic of all magnetic marker is all more higher or all on the low side than the original value of drill rod materials, deviation value is then logic 1 higher than decision threshold, is then logical zero lower than decision threshold.Or it is contrary.
Preferably, the spacing between two magnetic marker is then logic 1 more than decision threshold, is then logical zero less than decision threshold.Or it is contrary.
Preferably, it is possible to use start mark determines the original position of coding." ad-hoc location " mentioned above can with start mark for reference standard.
Preferably, the number of bits of encoded radio part determines the numerical range that coding can represent.One 16 binary coded value can represent 65536 different numerical value.
Preferably, it is possible to use the one or more combination of said method, the magnetic marker of multi-system is formed.Such as, the spacing between two magnetic marker has 100mm and 200mm, and width can be 30mm, 50mm, 70mm, then each magnetic marker can be one of following six kinds:
| Width 30 | Width 50 | Width 70 | |
| Spacing 100 | |||:::::::// | |||||:::::// | |||||||:::// |
| Spacing 200 | |||:::::::::::::::::// | |||||:::::::::::::::// | |||||||:::::::::::::// |
The width of each symbology 10mm in table.Vertical line " | " represents this position and have passed through magnetic-field heat treatment, and ": " represents that this position is without magnetic-field heat treatment, oblique stroke " // " it is the part of next labelling.The magnetic marker being 6 systems represented by upper table.One encoded radio being made up of 7 groups of such magnetic marker can represent 279936 different numerical value, i.e. 7 power of 6.
If using multi-system to represent, it is possible to using without magnetic marker (magnetic characteristic is without exception) as logical zero, higher as logic 1 using magnetic characteristic, on the low side as logic 2 using magnetic characteristic, here it is the coded system of a kind of system.Can also be without exception as logical zero using magnetic characteristic, using higher 0.5-1.5 the unit of magnetic characteristic as logic 1, higher 1.5-2.5 unit is as logic 2, more than higher 2.5 units as logic 3, here it is a kind of quaternary coded system.
Preferably, magnetic marker, along drilling rod shaft axially-aligned, adopts the quaternary, and the symbol definition representated by magnetic marker is as follows:
| Magnetic marker width (mm) | 0 (without magnetic marker) | 50 | 100 | 150 |
| Represent symbol | 0 | 1 | 2 | 3 |
Each symbol be spaced apart 200mm.Using the particular combination 31 of quaternary symbol as start mark.Encoded radio is 8 symbols.Adopt a symbol and verification, the computational methods of check value are 8 symbol step-by-step XORs of encoded radio.This drilling rod coded format can represent at most 65536 different values, i.e. 8 power of 4.Below for efficient coding value example:
| Drilling rod encodes | Start mark | Encoded radio | Check value | Encoded radio decimal scale |
| 31010311233 | 31 | 01031123 | 3 | 4955 |
| 31131023002 | 31 | 13102300 | 2 | 29872 |
| 31200112321 | 31 | 20011232 | 1 | 33134 |
| 31102231210 | 31 | 10223121 | 0 | 19161 |
It is encoded to example with first drilling rod, on drilling rod, marking situation from top to bottom is as follows (changes into from left to right for convenience, " | " represents that there is magnetic marker this position, and ": " represents that this position is without magnetic marker, and the width of each symbology is 50mm.)
The personal identification method of the present embodiment can also be applied to oil pipe and other downhole tool.
Embodiment 4
The personal identification method being applied to oil drill rocker operation of the present embodiment includes: S100, and the specific portion of drilling rod is carried out magnetic marker process；S200, detection has the magnetic characteristic change of described specific portion；S300, when the exceptional value of magnetic characteristic being detected, then detects the magnetic marker of drilling rod, obtains drilling rod coding based on the position of described magnetic marker, width and/or magnetic anomaly amplitude information.
Preferably, described magnetic characteristic includes pcrmeability, and as specific embodiment, described magnetic-field heat treatment includes improving pcrmeability.
Preferably, described magnetic characteristic includes the squareness ratio of hysteresis curve.As specific embodiment, described magnetic-field heat treatment includes the squareness ratio improving hysteresis curve, or makes pcrmeability keep invariable within the scope of certain magnetic field.In the particular embodiment, adopting longitudinal heat treatment, the flow direction that namely during heat treatment, magnetic direction is actually used with drilling rod is identical.Or, adopting transverse magnetic field heat treatment, the flow direction that namely during heat treatment, magnetic direction is actually used with drilling rod is perpendicular.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: described specific portion is heated so that it is reach or slightly above the Curie point of material, using as magnetic marker region；Applying the magnetic field of specific direction on described magnetic marker region, when described magnetic marker region is positioned on the shaft of drilling rod, described specific direction is the magnetic field consistent with the axial direction of drilling rod；When described magnetic marker region is positioned on the joint of drilling rod, described specific direction is the radial direction along joint；Described magnetic marker region is incubated, then, carries out controlled cooling, to form magnetic marker.
Preferably, during using pcrmeability as magnetic characteristic, as specific embodiment, being heated to 780～830 DEG C slightly above Curie point, temperature retention time is 30～60min.
Preferably, controlled it is cooled to 300～400 DEG C, Temperature fall, can improve pcrmeability.
Preferably, during using the squareness ratio of hysteresis curve as magnetic characteristic, as specific embodiment, being heated to 600～700 DEG C slightly below Curie point, temperature retention time is 60～90min, through longitudinally magnetic heat treatment, again with 200 DEG C/time rate of cooling be cooled to 350 DEG C, Temperature fall.
Preferably, controlled cooling respectively with 300 DEG C/time, 280 DEG C/time, 260 DEG C/time be cooled to 200 DEG C, hysteresis curve figure steepening stand, loop line area is substantially reduced.
Preferably, heater can include fired heater and attemperator, it would however also be possible to employ alternating current impression heater.
The change direction that magnetic characteristic is abnormal is relevant with the excitation direction adopted in magnetic-field heat treatment, also relevant with the sensor design of reading device.Labelling can be made to present magnetic characteristic accordingly higher or on the low side.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: the material of drilling rod specific portion is replaced with the material that magnetic property is different.
Preferably, the steel of ad-hoc location are replaced with the material that magnetic property is different by tool joint, such as the metal such as copper, aluminum or its alloy, or the nonmetallic materials such as high intensity glue.The method replaced is that the method being machined in tool joint produces multiple hole, inserts other material, relies on the positions and dimensions of hole to form coding.
Preferably, the described specific portion to drilling rod carries out the step of magnetic marker process and includes: described specific portion is heated so that it is reach or slightly above the Curie point of material, using as magnetic marker region；Described magnetic marker region applies the magnetic field consistent with tool joint radial direction；Described magnetic marker region is incubated.
Fig. 6 illustrates the another kind of embodiment in magnetic marker axially aligned with drilling rod, and black part is divided into position and the width indication of different magnetic marker, and magnetic marker is positioned on the circumference of shaft.
Drilling rod encodes along drilling rod shaft circumferential arrangement two-layer, and A-A is ground floor, and B-B is the second layer.Adopt binary system.Symbol definition representated by magnetic marker is as follows:
| Magnetic marker fan angle | 0 (without magnetic marker) | 20 |
| Represent symbol | 0 | 1 |
In every layer of symbol, each symbol occupies 20 degree of segment angles at circumferencial direction.Symbol be spaced apart 20 degree of segment angles.The axial length of each symbol is 200mm, and the axially spaced-apart of two-layer symbol is 300mm.In every layer of symbol, having a length is that the symbol of 400mm is as start mark.No parity check and error correction.Every layer, except start mark, has 8 symbols, and two-layer is totally 16 symbols.This drilling rod coded format can represent at most 65536 different values, i.e. 16 power of 2.Encoded radio in the present embodiment is binary one 010011001001101, i.e. decimal scale 42573.
For those skilled in the art, according to this example principle, the magnetic marker of equally possible use every layer constitutes a Morse code, several Morse codes axially aligned, represents the coding information of drilling rod with this.
Preferably, width and the axial location of described magnetic marker is measured by photoelectric encoder.
Preferably, the step of the magnetic characteristic change that described detection has described specific portion includes: adopt Hall element, and/or coil detects.
Preferably, described coil encircling is arranged at drilling rod, or is arranged at the side of drilling rod.
Preferably, described drilling rod coding includes: encoded radio part, start mark part, error correction or check part, wherein, described encoded radio part adopts binary representation with described error correction or check part, or multi-system represents, described start mark part by with described encoded radio part, and/or error correction or the identical hex notation composition of check part, or be set to the special marking different from described hex notation.
The change direction that magnetic characteristic is abnormal is relevant with the excitation direction adopted in magnetic-field heat treatment, also relevant with the sensor design of reading device.Labelling can be made to present magnetic characteristic accordingly higher or on the low side.
Preferably, the encoded radio part that described drilling rod coding includes adopts binary representation with described error correction or check part, or multi-system represents, described start mark part is made up of logical zero and logic 1, or is the special marking all different from logical zero and logic 1.
Preferably, if using binary representation, it is possible to, but it is not limited to represent with the following methods logical zero and logic 1:
Preferably, at ad-hoc location, having magnetic marker is then logic 1, and unmarked is then logical zero.Or it is contrary.
Preferably, at ad-hoc location, distinguishing logical zero and logic 1 with the size of magnetic marker, e.g., being sized larger than decision threshold is then logic 1, is then logical zero less than decision threshold.Or it is contrary.
Preferably, at ad-hoc location, the magnetic characteristic of magnetic marker is more higher than the original value of drill rod materials is then logic 1, and on the low side is then logical zero.Or it is contrary.
Preferably, at ad-hoc location, when the magnetic characteristic of all magnetic marker is all more higher or all on the low side than the original value of drill rod materials, deviation value is then logic 1 higher than decision threshold, is then logical zero lower than decision threshold.Or it is contrary.
Preferably, the spacing between two magnetic marker is then logic 1 more than decision threshold, is then logical zero less than decision threshold.Or it is contrary.
Preferably, it is possible to use start mark determines the original position of coding." ad-hoc location " mentioned above can with start mark for reference standard.
Preferably, the number of bits of encoded radio part determines the numerical range that coding can represent.One 16 binary coded value can represent 65536 different numerical value.
Preferably, it is possible to use the one or more combination of said method, the magnetic marker of multi-system is formed.Such as, the spacing between two magnetic marker has 100mm and 200mm, and width can be 30mm, 50mm, 70mm, then each magnetic marker can be one of following six kinds:
| Width 30 | Width 50 | Width 70 | |
| Spacing 100 | |||:::::::// | |||||:::::// | |||||||:::// |
| Spacing 200 | |||:::::::::::::::::// | |||||:::::::::::::::// | |||||||:::::::::::::// |
The width of each symbology 10mm in table.Vertical line " | " represents this position and have passed through magnetic-field heat treatment, and ": " represents that this position is without magnetic-field heat treatment, oblique stroke " // " it is the part of next labelling.The magnetic marker being 6 systems represented by upper table.One encoded radio being made up of 7 groups of such magnetic marker can represent 279936 different numerical value, i.e. 7 power of 6.
If using multi-system to represent, it is possible to using without magnetic marker (magnetic characteristic is without exception) as logical zero, higher as logic 1 using magnetic characteristic, on the low side as logic 2 using magnetic characteristic, here it is the coded system of a kind of system.Can also be without exception as logical zero using magnetic characteristic, using higher 0.5-1.5 the unit of magnetic characteristic as logic 1, higher 1.5-2.5 unit is as logic 2, more than higher 2.5 units as logic 3, here it is a kind of quaternary coded system.
Preferably, magnetic marker, along drilling rod shaft axially-aligned, adopts the quaternary, and the symbol definition representated by magnetic marker is as follows:
| Magnetic marker width (mm) | 0 (without magnetic marker) | 50 | 100 | 150 |
| Represent symbol | 0 | 1 | 2 | 3 |
Each symbol be spaced apart 200mm.Using the particular combination 31 of quaternary symbol as start mark.Encoded radio is 8 symbols.Adopt a symbol and verification, the computational methods of check value are 8 symbol step-by-step XORs of encoded radio.This drilling rod coded format can represent at most 65536 different values, i.e. 8 power of 4.Below for efficient coding value example:
| Drilling rod encodes | Start mark | Encoded radio | Check value | Encoded radio decimal scale |
| 31010311233 | 31 | 01031123 | 3 | 4955 |
| 31131023002 | 31 | 13102300 | 2 | 29872 |
| 31200112321 | 31 | 20011232 | 1 | 33134 |
| 31102231210 | 31 | 10223121 | 0 | 19161 |
It is encoded to example with first drilling rod, on drilling rod, marking situation from top to bottom is as follows (changes into from left to right for convenience, " | " represents that there is magnetic marker this position, and ": " represents that this position is without magnetic marker, and the width of each symbology is 50mm.)
The personal identification method of the present embodiment can also be applied to oil pipe and other downhole tool.
Embodiment 5
Magnetic-field heat treatment is adopted a collection of drilling rod to be carried out before mass magnetic marker process, it is possible to first pass through test method and determine rational magnetic-field heat treatment technological parameter, including heating, insulation and cooling method, excitation mode, applied mechanical tension type etc..According to test data, it is contemplated that magnetic marker treatment effect, on the impact of drilling rod performance, heat treatment energy consumption, heat treatment time, the difficulty of excitation mode, applied mechanical stress the compromise of the many factors such as difficulty, it is determined that the technological parameter of magnetic-field heat treatment.
Such as, during using pcrmeability as magnetic characteristic, from 350 DEG C of beginnings, to 800 DEG C, select a temperature spot as heat treated heating-up temperature every 50 DEG C, temperature retention time is respectively adopted 5 minutes, 15 minutes, 30 minutes, 60 minutes, cooling rate is respectively adopted 120 DEG C/h, 300 DEG C/h, 600 DEG C/h, excitation mode is respectively adopted longitudinal magnetic field and transverse magnetic field, drilling rod is applied respectively the axial tension of 10 tons and does not apply axial force, result by above-mentioned parameter composite test, pcrmeability in magnetic marker increases by more than 5%, in heat treatment time parameter combination within 3 hours, select energy consumption less one group as final magnetic-field heat treatment technological parameter.
The invention have the benefit that
Realize simple, the specific portion of drilling rod is processed, the magnetic property making this local changes, form several magnetic marker, when the exceptional value of magnetic characteristic being detected, the magnetic marker of drilling rod then detected, obtain drilling rod coding based on the position of described magnetic marker, width and/or magnetic anomaly amplitude information.Encoded by drilling rod, it is known that every drilling rod is at different drilling conditions, the such as degree of depth, pulling force, pressure, the worked time, hereby it is possible to identify the identity information of oil drill rocker operation, it is possible to drilling rod is filed by root, less costly, avoid the allowance stayed when drilling rod is eliminated excessive, it is possible to reduce waste.
Described above illustrate and describes some preferred embodiments of the application, but as previously mentioned, it is to be understood that the application is not limited to form disclosed herein, it is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and environment, and in application contemplated scope described herein, can be modified by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change are without departing from spirit and scope, then all should in the protection domain of the application claims.
Claims (10)
1. the personal identification method being applied to oil drill rocker operation, it is characterised in that including:
The specific portion of drilling rod is carried out magnetic marker process；
Detect the magnetic characteristic change of described specific portion；
When the exceptional value of magnetic characteristic being detected, then the magnetic marker of drilling rod detected, obtain drilling rod coding based on the position of described magnetic marker, width and/or magnetic anomaly amplitude information.
2. the personal identification method being applied to oil drill rocker operation according to claim 1, it is characterised in that the described specific portion to drilling rod carries out the step of magnetic marker process and includes: the material of drilling rod specific portion is replaced or is added to the material that magnetic property is different.
3. the personal identification method being applied to oil drill rocker operation according to claim 1, it is characterised in that the described specific portion to drilling rod carries out the step of magnetic marker process and includes magnetic-field heat treatment.
4. the personal identification method being applied to oil drill rocker operation according to claim 3, it is characterised in that described magnetic marker is arranged on the shaft of drilling rod, and axially aligned, or
Described magnetic marker is arranged on drilling rod shaft, and circumferentially arranges, or
Described magnetic marker is arranged in tool joint, and circumferentially arranges.
5. the personal identification method being applied to oil drill rocker operation according to claim 4, it is characterised in that measured axial width and the axial location of described magnetic marker by photoelectric encoder.
6. the personal identification method being applied to oil drill rocker operation according to claim 5, it is characterised in that measured circumferential width and the magnetic anomaly amplitude of described magnetic marker by sensor array.
7. the personal identification method being applied to oil drill rocker operation according to claim 1, it is characterized in that, by being arranged at drilling rod lateral surface, medial surface or surrounding sensor or the sensor array measurement position of described magnetic marker, width and/or the magnetic anomaly amplitude information that drilling rod circumferentially arranges.
8. the personal identification method being applied to oil drill rocker operation according to claim 7, it is characterised in that the step of the magnetic characteristic change of the described specific portion of described detection includes: adopt Hall element, and/or coil detects.
9. the personal identification method being applied to oil drill rocker operation in any of the one of claim 1-8, it is characterized in that, described drilling rod coding includes: encoded radio part and start mark part, wherein, described encoded radio part adopts binary system or multi-system to represent, or adopting Morse code coded system to represent, described start mark part is made up of the hex notation identical with described encoded radio part, or is set to the special marking different from described hex notation.
10. the personal identification method being applied to oil drill rocker operation according to claim 9, it is characterized in that, described drilling rod coding also includes error correction or check part, described error correction or check part and adopts binary system or multi-system to represent, or adopts Morse code coded system to represent.
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| CN201410829390.3A CN105787401B (en) | 2014-12-26 | 2014-12-26 | A kind of personal identification method applied to oil drill rocker operation |
| PCT/CN2015/098373 WO2016101886A1 (en) | 2014-12-26 | 2015-12-23 | Identity identification method and device applied to petroleum drill pipe operation |
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| CN110705327A (en) * | 2019-11-06 | 2020-01-17 | 贵阳铝镁设计研究院有限公司 | Full-life cycle logistics tracking method and device for carbon anode for aluminum |
| CN115613029A (en) * | 2022-09-08 | 2023-01-17 | 河北光束激光科技有限公司 | A Marking Method of Oil Drill Pipe Based on Binary Code |
| CN117892755A (en) * | 2023-11-24 | 2024-04-16 | 四川迈棣辉石油科技有限责任公司 | Method for identifying drill rod based on magnetoelectric induction |
| CN117892755B (en) * | 2023-11-24 | 2024-11-08 | 四川迈棣辉石油科技有限责任公司 | A drill rod identification method based on magnetoelectric induction |
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| WO2016101886A1 (en) | 2016-06-30 |
| CN105787401B (en) | 2018-09-07 |
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