CN202194653U - Multi-arm well diameter imaging logging instrument - Google Patents
Multi-arm well diameter imaging logging instrument Download PDFInfo
- Publication number
- CN202194653U CN202194653U CN2011202475238U CN201120247523U CN202194653U CN 202194653 U CN202194653 U CN 202194653U CN 2011202475238 U CN2011202475238 U CN 2011202475238U CN 201120247523 U CN201120247523 U CN 201120247523U CN 202194653 U CN202194653 U CN 202194653U
- Authority
- CN
- China
- Prior art keywords
- arm
- imaging logging
- logging instrument
- hole diameter
- diameter imaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model relates to a multi-arm caliper imaging logging instrument, including surveying the arm, this surveys the arm and surveys the arm to bootstrap formula. The utility model provides a simple, the subsequent processing of measurement mode is convenient, measurement accuracy is high and long service life's hole diameter imaging logging instrument.
Description
Technical field
The utility model belongs to the engineering log field, relates to a kind of logging instrument, relates in particular to a kind of multi-arm hole diameter imaging logging instrument.
Background technology
In oilfield process; Move and day by day corrosion with the dislocation of landing surface; Sleeve pipe and oil pipe can produce deformation, bad break, hole equivalent damage in various degree, influence the ordinary production and the output of oil well, just need the degree of impairment of inspection oil pipe or sleeve pipe.Multi-arm hole diameter imaging logging instrument can reflect the damage status of oil pipe or sleeve pipe very intuitively through measuring the internal diameter of oil pipe or sleeve pipe.It has a plurality of hole diameter feeler arms, measures the hole diameter value in a plurality of orientation of circumference respectively, and lateral resolution is high, damage status that can the detail knowledge down-hole casing.But the structure of the feeler arm that present various multi-arm hole diameter imaging logging instruments commonly used are adopted is referring to shown in Figure 1, and it is supported by two springs (core bar spring and push rod spring), simultaneously, also needs the balance bunker, and its frame for movement is loaded down with trivial details, uses inconvenient.
The utility model content
In order to solve the above-mentioned technical problem that exists in the background technology, the utility model provides that metering system is simple, subsequent treatment convenient, certainty of measurement is high and the hole diameter imaging logging instrument of long service life.
The technical solution of the utility model is: the utility model provides a kind of multi-arm hole diameter imaging logging instrument, comprises feeler arm, and its special character is: said feeler arm is the bootstrap type feeler arm.
Above-mentioned multi-arm hole diameter imaging logging instrument also comprises the displacement transducer that is used to respond to the feeler arm change in location that links to each other with feeler arm.
Above-mentioned displacement transducer is a non-contact displacement transducer.
Above-mentioned non-contact displacement transducer is the non-contact displacement transducer that diameter is not more than 4mm.
Above-mentioned displacement transducer comprises core bar and core bar groove; One end of said core bar links to each other with feeler arm, and the other end stretches in the core bar groove and at the core bar groove and slides freely.
Above-mentioned multi-arm hole diameter imaging logging instrument also comprises drive of motor pipe nipple and circuit for controlling motor; Be connected through last lower interface respectively between said circuit for controlling motor and the drive of motor pipe nipple and between drive of motor pipe nipple and the feeler arm; Said circuit for controlling motor comprises single-chip microcomputer, and control drive of motor pipe nipple was realized opening of feeler arm received after said circuit for controlling motor received the control command that the ground numerical control sends through single-chip microcomputer.
Above-mentioned multi-arm hole diameter imaging logging instrument also comprises the independent centralizer that is arranged at the imaging logging instrument both ends.
Above-mentioned centralizer is a rolling wheel centralizer.
Lower interface on the instrument of above-mentioned upward lower interface employing
inch-12 (being 38B).
The above-mentioned lower interface of going up is the single core connector of pressure-bearing.
The utility model has the advantages that:
The multi-arm hole diameter imaging logging instrument that the utility model provided, its feeler arm that adopts carries spring, is the structure of bootstrap type, and the displacement transducer core bar exposes, and does not need the balance bunker; Compact conformation is measured and is adopted the contactless displacement transducer of bridge-type inductance, has improved the application life and the certainty of measurement of sensor greatly.Because bridge-type inductance contactless pick up volume is little, can realize that therefore the high density under the instrument minor diameter is measured.Underground signal can obtain the imaging of expansion imaging, circumferential section, the cylinder three-dimensional imaging key-drawing of casing inner diameter through software processes, and clear reflection down-hole casing gets damage situations.
Simultaneously, the centralizer that the utility model adopted adopts independently rolling wheel centralizer, has reduced the load of motor, receives the arm time with opening thereby reduced the pressure of opening arm, has simplified frame for movement, has improved the reliability of instrument.
The 3rd, the utility model circumferentially is distributed in feeler arm on the logging instrument, and multi-arm hole diameter imaging logging instrument is through measuring the internal diameter of oil pipe or sleeve pipe; The damage status of oil pipe or sleeve pipe can be reflected very intuitively,, the hole diameter value in a plurality of orientation of circumference can be measured respectively because considerable hole diameter feeler arm is arranged; Lateral resolution is high, and damage status that can the detail knowledge down-hole casing can record many single armed CALs simultaneously; Cooperate the measurement of a plurality of parameters such as orientation, hole deviation, gamma, well temperature; Can truly reflect the real quality situation in the sleeve pipe, metering system is simple comprehensively, and subsequent treatment is convenient, the certainty of measurement advantages of higher.
The 4th, the utility model can connect multiple measuring apparatus, like the gamma borehole thermometer, and the electromagnetic test logging instrument, electromagnetic thickness tools etc. adopt distinctive coding, and through connecing multiple instrument under single core the spread of the rumours, autgmentability is strong.
Description of drawings
Fig. 1 is the structural representation of the feeler arm that adopted of existing hole diameter imaging logging instrument;
Fig. 2 is the feeler arm structural representation that the utility model adopts;
Fig. 3 is the rolling wheel centralizer structural representation that the utility model adopts;
Fig. 4 is the overall structure block diagram of the multi-arm hole diameter imaging logging instrument that provides of the utility model;
Fig. 5 is the fundamental diagram of the multi-arm hole diameter imaging logging instrument that provides of the utility model;
Fig. 6 is the circuit block diagram that the utility model adopts;
Wherein:
The 1-feeler arm; The 11-spring; The 12-core bar; 13-core bar groove; The 14-displacement transducer; The 2-centralizer.
The specific embodiment
Referring to Fig. 2,, be that feeler arm 1 is the bootstrap type feeler arm as the maximum improvement of the utility model; This feeler arm carries spring, and being different from feeler arm in the past needs the independent spring and the drive mechanism of push rod, and feeler arm 1 carries spring 11 and forms the structures of booting; Being different from the past, feeler arm Fig. 1 needs the independent spring and the drive mechanism of push rod; Simplified apparatus structure, reduced the error that machine driving causes, made M R easier.
Be used to respond to the displacement transducer 14 of feeler arm 1 change in location, this displacement transducer 14 can be a non-contact displacement transducer, or other displacement transducers can; But as preferred, the utility model has selected diameter to be not more than the non-contact displacement transducer of 4mm, has better linearity; Adopt the individual layer layout to make each sensor mechanical mechanism consistent, help the mechanical deviation and the temperature drift of compensation sensor, because sensor is on an aspect; Mechanical deviation is consistent, proofreaies and correct easily.In like manner, sensor is in identical thermal field, and temperature is consistent, helps temperature-compensating.The displacement transducer core bar exposes, and does not need the balance bunker, compact conformation.This non-contact displacement transducer comprises core bar 12 and core bar groove 13; One end of core bar 12 links to each other with feeler arm 1; The other end stretches in the core bar groove 13 and at core bar groove 13 and slides freely; When deformation takes place in feeler arm 1, drive core bar 12 and in core bar groove 13, slide freely, the displacement of its slip is also put down in writing by displacement transducer 14 just; Further form the variable quantity that displacement takes place, obtain the concrete signal of down-hole.
Referring to Fig. 3, the utility model has also adopted independently rolling wheel centralizer 2 up and down whole logging instrument, and the uprighting force of this rolling wheel centralizer 2 is bigger; Can avoid the tool housing wearing and tearing; Be different from and carry centralizer structure in the past, can with uprighting force design rationally, and then reach and better set upright effect.Owing to adopted the rolling wheel centralizer that separates, the corresponding mechanical mechanism of having simplified has improved the reliability of instrument.
Referring to Fig. 4; Be the overall construction drawing of the utility model, top connects independently centralizer 2 (rolling wheel centralizer 2 just shown in Figure 3), is the electronics pipe nipple of multi-arm hole diameter imaging logging instrument below; The main signal of being responsible for pick-up transducers connects functions such as instrument under the spread of the rumours.Be the mechanical detection arm portion of multi-arm hole diameter imaging logging instrument below the electronics pipe nipple, be used for casing inner diameter is converted into the displacement of inductive displacement transducer.Be motor transmission part below the mechanical detection arm portion, mainly form, be used for spurring opening of feeler arm and receive function by motor and leading screw.It below the motor transmission part circuit for controlling motor.Major function is to be responsible for the work of control motor.Lower interface on the unified employing of last lower interface
inch-12 (being 38B) instrument of instrument; Interface adopts the single core connector of pressure-bearing; Interface or certain section instrument leakage can not have influence on other and articulate instrument, and the loss of the instrument under the fortuitous event is reduced.
Referring to Fig. 5; The operating principle of the utility model is: when with instrument casing inner diameter being measured; Each feeler arm will pass to displacement transducer to its casing inner diameter that perceives through certain mechanical system, after the output signal of displacement transducer is handled through differential amplification, rectifying and wave-filtering, just can obtain the voltage relevant with casing inner diameter; Convert this voltage into digital quantity through A/D converter; Through scale, methods such as temperature-compensating obtain down-hole casing internal diameter situation and are transferred to the ground digital control system, are the inner diameter values of sleeve pipe with resultant data transaction by the ground digital control system again.
Referring to Fig. 6, be the utility model overall circuit block diagram, the instrument supply voltage is 100V.On the one hand, instrument is uploaded to the numerical control decoding through single-core cable after the instrument data that connects under the data that collect and the spread of the rumours is encoded.On the other hand, the instrument of low frequency order control instrument itself and lower end is sent in numerical control.
Each main circuit partial function is described below:
Circuit for controlling motor is to receive the control command that the ground numerical control is sent through single-chip microcomputer; And then to interlock circuit transmission instruction; The arm of open receiving of instrument is accomplished in the action of control motor, is different from multiple feeler caliper is in the past opened arm motion through the adjustment Control of Voltage by ground mode.Thereby make control more convenient, more integrated.
Low-voltage power circuit mainly be the high voltage with bus be converted into instrument work required+5V ,+15V ,-15V voltage, and the signal on the bus isolated.
Data drive circuit is divided into coding drive circuit and internal bus transtation mission circuit.Coding drive circuit major function is the two-way positive negative pulse stuffing that single-chip microcomputer is produced, and synthesizes bipolarity and returns coding, and send on the cable through current drives.Internal bus transtation mission circuit major function is the two-way positive negative pulse stuffing that single-chip microcomputer is produced, and synthesizes the bipolarity data format, and sends on the cable through current drives.
Signal decoding circuit is divided into aboveground numerical control low frequency signal data receiver circuit and internal bus data receiver circuit.Aboveground numerical control low frequency signal data receiver circuit mainly passes through conversion with the data that aboveground numerical control issues, and becomes the UART sign indicating number, gives processor processes.The internal bus data receiver circuit mainly converts the positive negative pulse stuffing on the internal bus into single-chip microcomputer acceptable level, respectively with positive pulse and negative pulse conversion back input single-chip microcomputer.
The assurance of 90V mu balanced circuit makes the voltage of the internal bus of instrument be stabilized in 90V.
The CPU digital signal circuit is the gating that produces displacement transducer through the data acquisition single-chip microcomputer with the calculating, the cable end voltage acquisition that drive the collection with the instrument temperature value of signal, collections of displacement transducer magnitude of voltage, test arm state acquisition, chip, orientation hole deviation, produce with communications such as magnetic logger, magnetic crack detector, electromagnetic thickness tool, code signal, coding frequency and compositions such as pulsewidth setting, program download and debug function, CPU employing dsPIC Series chip in this circuit.
Relative bearing is to utilize the data of orientation obliquity sensor to carry out the data that geometrical analysis draws.Utilize the data of X, Y direction, calculate the inclination angle of instrument, the obliquity sensor stable performance is quick on the draw, and range for measuring is big, has good performance.When multi-arm is logged well,, become image curve that certain distortion is just arranged so if instrument rotates in well.If know the relative bearing of instrument in the down-hole, when instrument rotates, compensate with the position of relative bearing to gage beam, just can draw correct curve.
The working method of the utility model is proposed well logging on being.
Claims (10)
1. a multi-arm hole diameter imaging logging instrument comprises feeler arm, it is characterized in that: said feeler arm is the bootstrap type feeler arm.
2. multi-arm hole diameter imaging logging instrument according to claim 1 is characterized in that: said multi-arm hole diameter imaging logging instrument also comprises the displacement transducer that is used to respond to the feeler arm change in location that links to each other with feeler arm.
3. multi-arm hole diameter imaging logging instrument according to claim 2, it is characterized in that: said displacement transducer is a non-contact displacement transducer.
4. multi-arm hole diameter imaging logging instrument according to claim 3 is characterized in that: said non-contact displacement transducer is the non-contact displacement transducer that diameter is not more than 4mm.
5. according to claim 2 or 3 or 4 described multi-arm hole diameter imaging logging instruments, it is characterized in that: said displacement transducer comprises core bar and core bar groove; One end of said core bar links to each other with feeler arm, and the other end stretches in the core bar groove and at the core bar groove and slides freely.
6. multi-arm hole diameter imaging logging instrument according to claim 5 is characterized in that: said multi-arm hole diameter imaging logging instrument also comprises drive of motor pipe nipple and circuit for controlling motor; Be connected through last lower interface respectively between said circuit for controlling motor and the drive of motor pipe nipple and between drive of motor pipe nipple and the feeler arm; Said circuit for controlling motor comprises single-chip microcomputer, and control drive of motor pipe nipple was realized opening of feeler arm received after said circuit for controlling motor received the control command that the ground numerical control sends through single-chip microcomputer.
7. multi-arm hole diameter imaging logging instrument according to claim 6 is characterized in that: said multi-arm hole diameter imaging logging instrument also comprises and is arranged at independently centralizer of imaging logging instrument two ends.
8. multi-arm hole diameter imaging logging instrument according to claim 7, it is characterized in that: said centralizer is a rolling wheel centralizer.
9. multi-arm hole diameter imaging logging instrument according to claim 8 is characterized in that: lower interface on the instrument of said upward lower interface employing
inch-12.
10. multi-arm hole diameter imaging logging instrument according to claim 9 is characterized in that: the said lower interface of going up is the single core connector of pressure-bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202475238U CN202194653U (en) | 2011-07-14 | 2011-07-14 | Multi-arm well diameter imaging logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202475238U CN202194653U (en) | 2011-07-14 | 2011-07-14 | Multi-arm well diameter imaging logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194653U true CN202194653U (en) | 2012-04-18 |
Family
ID=45949570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202475238U Expired - Lifetime CN202194653U (en) | 2011-07-14 | 2011-07-14 | Multi-arm well diameter imaging logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194653U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10113409B2 (en) | 2016-07-12 | 2018-10-30 | Geonomic Technologies Inc. | Bore measuring tool |
| US12000266B2 (en) | 2020-03-13 | 2024-06-04 | Geonomic Technologies Inc. | Method and apparatus for measuring a wellbore |
-
2011
- 2011-07-14 CN CN2011202475238U patent/CN202194653U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10113409B2 (en) | 2016-07-12 | 2018-10-30 | Geonomic Technologies Inc. | Bore measuring tool |
| US12000266B2 (en) | 2020-03-13 | 2024-06-04 | Geonomic Technologies Inc. | Method and apparatus for measuring a wellbore |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111379550B (en) | System for be used for monitoring dynamic parameter in pit | |
| CN101799558B (en) | Electromagnetic surveying system while drilling of adjacent-well parallel intervals | |
| CN106596715B (en) | Array type transient electromagnetic method multilayer tubular column damage detection system and method | |
| CN101713288B (en) | A Measuring Instrument Used for Distance-While Drilling Electromagnetic Detection of Adjacent Wells | |
| CN106759215B (en) | A kind of multifunction digital seismic wave hole pressure touching methods test macro | |
| CN201778814U (en) | Mud-pulse-type wireless inclinometer while drilling | |
| CN101424182A (en) | Dynamic force multi-parameter measuring systems for rotary simulation of bottom drill string | |
| CN107387059B (en) | Underground engineering parameter measuring instrument | |
| CN101881610A (en) | Aperture Deformation Meter for Trenchless Pipelaying | |
| CN113530519A (en) | Distributed drilling dynamic parameter monitoring device and method | |
| CN101476462A (en) | Measurement while drilling for engineering geological drilling | |
| CN202194653U (en) | Multi-arm well diameter imaging logging instrument | |
| CN103439037A (en) | Pumping unit underground rod column indicator diagram tester | |
| CN111946327A (en) | Digital high-precision indicator diagram data acquisition device | |
| CN200986477Y (en) | Down-hole sucker rod string tester for screw pump well | |
| CN110044449A (en) | A kind of wireless suspending weight torque sensor of oil drilling | |
| CN203011594U (en) | Micro-power-consumption integrated indicator based on wireless Internet of Things | |
| CN102155934B (en) | Optical fiber static water level gauge | |
| CN102937507A (en) | High-precision wireless indicator for pumping unit and method for measuring indicator diagram of pumping unit | |
| CN101825424B (en) | High-temperature and high-pressure small-size length measuring device | |
| CN103245294B (en) | Internal displacement measurement system of rock and soil | |
| CN201083126Y (en) | Separated multi-arm well diameter measuring device | |
| CN203584414U (en) | Fiber-optic gyroscope clinometer | |
| CN202391405U (en) | Scaling device of MWD (measurement while drilling) apparatus for drilling pressure and torque in petroleum drilling | |
| CN114165212B (en) | Drilling parameter acquisition test device for small-caliber core drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |
|
| CX01 | Expiry of patent term |