CN207485419U - A kind of transient electromagnetic resistivity logging tool graduation apparatus - Google Patents
A kind of transient electromagnetic resistivity logging tool graduation apparatus Download PDFInfo
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- CN207485419U CN207485419U CN201721395395.5U CN201721395395U CN207485419U CN 207485419 U CN207485419 U CN 207485419U CN 201721395395 U CN201721395395 U CN 201721395395U CN 207485419 U CN207485419 U CN 207485419U
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- resistivity
- receiving coil
- coil system
- transient electromagnetic
- logging tool
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Abstract
The utility model belongs to oil well logging construction formation resistivity field of measuring technique, more particularly, to a kind of transient electromagnetic resistivity logging tool graduation apparatus, this kind of graduation apparatus is simple and compact for structure, it is easily achieved and its own resistivity standard value is configured, so as to complete that the adjustment of engineering value is exported after measuring transient electromagnetic resistivity logging tool.A kind of transient electromagnetic resistivity logging tool graduation apparatus, including：Well bore casing；The water tank container for being set in wellbore periphery is resistivity adjustment chamber, and resistivity adjustment chamber is internally provided with isolation baffle plate, and resistivity adjustment intracavitary part is divided into the first inner chamber and the second inner chamber of size, shape all same by isolation baffle plate；Receiving coil system is positioned within well bore casing, and the first receiving coil system is provided at the first inner chamber position, the second receiving coil system is provided at the second inner chamber position；First receiving coil system is opposite with the winding direction of the second receiving coil system and Same Name of Ends connection after draw, so as to form comparison expression receiving coil system.
Description
Technical field
The utility model belongs to oil well logging construction formation resistivity field of measuring technique, more particularly, to a kind of transient electrical
Magnetic resistivity logger graduation apparatus.
Background technology
Transient electromagnetic resistivity logging technology is as a kind of novel logging technique, available for surveys such as open hole well, cased wells
In well field, the extraction to formation resistivity information is realized.
The existing periodic bipolarity square pulse of transient electromagnetic resistivity logging tool generally use loads on hair
Ray circle.In emission process, by loading of short duration direct current on transmitting coil so that electromagnetism is formed on transmitting coil and is turned
It changes, so as to generate stable Primary field in well surrounding medium.It is primary in well surrounding medium after transmitting coil power-off
Magnetic field increases at any time fades away, this process can generate vortex in the medium, is vortexed meeting and then generates secondary field（Electric field, magnetic
）, secondary field voltage signal be finally received coil measurement.Since the size of vortex and the conductive features of medium are related, so
The secondary field voltage signal of measurement can be used for asking for for formation resistivity.
In the development process of existing transient electromagnetic resistivity logging tool, technical staff needs the electricity according to surrounding medium
Resistance rate situation carries out reasonable disposition to the graduation apparatus of existing transient electromagnetic resistivity logging tool, so as to ensure apparatus measures institute
The precision of value.However inventor has found, and after existing transient electromagnetic resistivity logging tool design molding, graduation apparatus
Corresponding sizing, it is difficult to be changed again, therefore to adjust its graduation apparatus become ten points it is difficult, graduation apparatus is provided
Measuring resistance rate ground environment also be difficult to change, cause inconvenience of the transient electromagnetic resistivity logging tool during scale.
Utility model content
The utility model provides a kind of transient electromagnetic resistivity logging tool graduation apparatus, is adopted exclusively for electromagnetic probe
It takes the instrument of comparison expression receiving coil system and builds.This kind of graduation apparatus is simple and compact for structure, it is easy to accomplish to self-resistance rate
Standard value is configured, so as to complete the scale to transient electromagnetic resistivity logging tool engineering value.
In order to solve the above technical problems, the utility model employs following technical solution：
A kind of transient electromagnetic resistivity logging tool graduation apparatus, including：
Well bore casing；
The resistivity adjustment chamber of well bore casing periphery is set in, resistivity adjustment chamber is internally provided with isolation baffle plate, every
Resistivity adjustment intracavitary part is divided into the first inner chamber and the second inner chamber of size, shape all same from baffle；It receives
Coil array is positioned over inside well bore casing, and the first receiving coil system is provided in the first inner chamber, is provided in the second inner chamber
Second receiving coil system；First receiving coil system is opposite with the winding direction of the second receiving coil system and Same Name of Ends draws afterwards in succession
Go out, so as to form comparison expression receiving coil system.
Further, it further includes：Be arranged on resistivity adjustment chamber the first inner chamber side wall on first open window and
Second be arranged on resistivity adjustment chamber the second inner chamber side wall opens window.
More preferred, resistivity adjustment chamber is made of in hollow cylinder shape glass steel material；Resistivity adjustment chamber
0.4-0.5 meters a diameter of, the length of resistivity adjustment chamber is not less than 2 meters.
More preferred, well bore casing is made of glass steel material or steel material；A diameter of 5 inches of well bore casing or 7
Inch, the length of well bore casing are longer than the length of resistivity adjustment chamber.
It is selectable, it further includes：The stent of well bore casing and resistivity adjustment chamber is used to support, the material of stent has
Non-magnetic, non-conductive feature.
It is selectable, distance of the first receiving coil system away from isolation baffle plate and the second receiving coil system away from isolation baffle plate away from
From identical.
The utility model provides a kind of transient electromagnetic resistivity logging tool graduation apparatus, this kind of transient electromagnetic resistance
The structures such as rate logger graduation apparatus setting well bore casing, the resistivity adjustment chamber for being set in well bore casing periphery, stent
Unit, wherein resistivity adjustment chamber are internally provided with isolation baffle plate, and resistivity adjustment intracavitary part is divided into greatly by isolation baffle plate
Small, shape all same the first inner chamber and the second inner chamber；It is provided with the first receiving coil system in first inner chamber, second
The second receiving coil system is provided in inner chamber；First receiving coil system is opposite with the winding direction of the second receiving coil system and same
Name termination is drawn after connecting, so as to form comparison expression receiving coil system.Transient electromagnetic resistivity logging with above structure unit
Instrument graduation apparatus can be relatively easy to complete the adjustment to its measurement accuracy, be surveyed so as to fulfill to transient electromagnetic resistivity
The amendment of well instrument measurements ultimately helps the scale work of logger.
Description of the drawings
Fig. 1 is the structure diagram of transient electromagnetic resistivity logging tool graduation apparatus provided by the utility model；
Fig. 2 is to carry out zero degree value scale with graduation apparatus to the transient electromagnetic resistivity logging tool of structure shown in Fig. 1 to survey
Output waveform diagram caused by amount process.
Specific embodiment
The utility model provides a kind of transient electromagnetic resistivity logging tool graduation apparatus, this kind of graduation apparatus structure
Simple and compact, it is easy to accomplish self-resistance rate standard value is configured, so as to complete to transient electromagnetic resistivity logging tool
The adjustment of measured value.
As shown in Figure 1, the utility model provides a kind of transient electromagnetic resistivity logging tool graduation apparatus, the transition
Electromagnetic resistance rate logger graduation apparatus includes well bore casing 1（Specifically, well bore casing is by steel sleeve or fiberglass
Pipe form, inside can also be needed to be provided with the component parts such as water tank container according to real work）, resistivity adjustment chamber 2 with
And the stent 3 of setting may be selected, resistivity adjustment chamber 2 is set in the periphery of well bore casing 1.Wherein, more preferably, wellbore set
Pipe is made of glass steel material or steel material；A diameter of 5 inches of well bore casing or 7 inches, the length of well bore casing is longer than electricity
Resistance rate adjusts the length of chamber；And resistivity adjustment chamber 2 is made of in hollow cylinder shape glass steel material；Resistivity adjusts chamber
A diameter of 0.4-0.5 meters, resistivity adjustment chamber length be not less than 2 meters.Isolation is internally provided in resistivity adjustment chamber 2
Baffle 21, the isolation baffle plate 21 can by resistivity adjust chamber 2 inner space be separated into size, shape all same first inside
211 and second inner chamber 221 of chamber；The coil array of logger is positioned over inside well bore casing, is set in the first inner chamber 211
The first receiving coil system 212 is equipped with, the second receiving coil system 222 is provided in the second inner chamber 221；First receiving coil system
212 is opposite with the winding direction of the second receiving coil system 222 and Same Name of Ends is drawn afterwards in succession（Specifically as shown in Figure 1, first connects
Rear exit is A0 ends to the Same Name of Ends of receipts coil array and the second receiving coil system in succession, and the other end of the first receiving coil system is A1
End, the other end of the second receiving coil system is A2 ends）, so as to form comparison expression receiving coil system.
And the utility model one kind more preferred embodiment is used as, this kind of transient electromagnetic resistivity logging tool is carved
Degree device further includes the first opening window and second opens window, wherein the first opening window is arranged on resistivity adjustment chamber the
On one inner chamber side wall, the second opening window is arranged on resistivity adjustment chamber the second inner chamber side wall.
The specifically used process of this kind of transient electromagnetic resistivity logging tool graduation apparatus can be described as follows：Basis first
Borehole size requirement determines the diameter of well bore casing, such as：The diameter of well bore casing is set as 5 inches or 7 inches；Then
Resistivity adjustment chamber is placed in the periphery of well bore casing, window and second dozen are opened by first on well bore casing respectively
Windowing injects the pure distilled water of equivalent into the first inner chamber and the second inner chamber；Be closed first open window and
Second opens window, is fixed using fluid sealant, and by the horizontal placement of device.Logger is positioned over inside well bore casing,
It is worth noting that, in transient electromagnetic signal emission process, direct current is connected in transmitting coil, in pit shaft, well bore casing
And stable Primary field can be generated in the corresponding internal chamber of resistivity adjustment chamber.And transient electromagnetic signal battery has fired
Afterwards, Primary field will be zero through changing after a period of time.Within the period for fading to zero, Primary field can form vortex and then production
Raw secondary magnetic field, the secondary magnetic field voltage signal can be received coil reception, and waveform can be recorded by instrument.And due to
The resistivity value of one inner chamber and the second inner chamber is equal（Wherein, it is preferable that the first receiving coil system keeps off away from isolation
The distance of plate is identical with the second distance of the receiving coil system away from isolation baffle plate；And it is injected in the first inner chamber and the second inner chamber
Pure distilled water is also equivalent）, therefore for two end signals of comparison expression receiving coil system, amplitude and attenuation
It is identical that situation, which changes over time, but direction is on the contrary, as shown in Figure 2.Both first receiving coil system, the second receiving coil system
After signal differential operation output, the voltage difference of the two is measured, total differential effect is zero.That is, instrument is completed at this time
Be zero degree value scale measure.With resistivity instrument measurement liquid resistivity, as standard value when starting scale.
One of both first inner chamber or the second inner chamber are then selected, electricity is gradually added into the inner chamber of selection
Matter salt is solved, and is stirred evenly；The situation of change of resistivity instrument measurement resistivity is used after the completion of addition（Not selected inner chamber
Keep original state constant）.At this point, the amplitude of both the first receiving coil system, the second receiving coil system signal and attenuation are at any time
Between variation be it is different, transient electromagnetic resistivity logging tool carry out calculus of differences output result tested, can measure
Total voltage difference data.Difference waveform amplitude at this time has acute variation, and total differential effect is rendered as an amplitude and changes over time
And the curve decayed.With resistivity instrument measurement saline fluid resistivity, the standard value as certain test point during scale.
It then proceedes to repeatedly be gradually added into electrolytic salt into the inner chamber of same selection, continue after stirring evenly
Later data is tested.The resistivity data true value that many experiments obtain（Standard value）, so as to each survey engineering of calibrating instrument
Value, and then the engineering value coefficient of transient electromagnetic resistivity logging tool is obtained, realize the scale to instrument.
And after realizing to the accurate calibration of the engineering value coefficient of transient electromagnetic resistivity logging tool, by this kind of transition
Electromagnetic resistance rate logger, which is lowered under practical well environment, carries out logging operation.Since geologic body resistivity value is around well
It is changed with well depth, and the resistivity of medium and unbalanced in the range of the comparison expression coil array of instrument.It is at this point, defeated
A curve in attenuation change trend can be obtained after measuring circuit by going out signal, by parsing the change curve and then realization
Measurement to surrounding medium resistivity.
The utility model provides a kind of transient electromagnetic resistivity logging tool graduation apparatus, this kind of transient electromagnetic resistance
The structures such as rate logger graduation apparatus setting well bore casing, the resistivity adjustment chamber for being set in well bore casing periphery, stent
Unit, wherein resistivity adjustment chamber are internally provided with isolation baffle plate, and resistivity adjustment intracavitary part is divided into greatly by isolation baffle plate
Small, shape all same the first inner chamber and the second inner chamber；The coil array of logger is positioned over inside well bore casing, the
The first receiving coil system is provided in one inner chamber, the second receiving coil system is provided in the second inner chamber；First receiving coil
It is that and Same Name of Ends opposite with the winding direction of the second receiving coil system is drawn afterwards in succession, so as to form comparison expression receiving coil system.
Transient electromagnetic resistivity logging tool graduation apparatus with above structure unit, can be relatively easy to complete what it was provided
Standard electric values of resistivity is adjusted, and so as to fulfill the amendment to transient electromagnetic resistivity logging tool survey engineering value, is finally had
Help the scale work of logger.
The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, in the technical scope that any one skilled in the art discloses in the utility model, variation can be readily occurred in
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain of profit requirement.
Claims (6)
1. a kind of transient electromagnetic resistivity logging tool graduation apparatus, which is characterized in that including：
Well bore casing；
The resistivity adjustment chamber of well bore casing periphery is set in, resistivity adjustment chamber is internally provided with isolation baffle plate, isolation gear
Resistivity adjustment intracavitary part is divided into the first inner chamber and the second inner chamber of size, shape all same by plate；Inside first
Intracavitary is provided with the first receiving coil system, and the second receiving coil system is provided in the second inner chamber；First receiving coil system and the
The winding direction of two receiving coil systems is drawn on the contrary and after Same Name of Ends connection, so as to form comparison expression receiving coil system.
2. a kind of transient electromagnetic resistivity logging tool graduation apparatus according to claim 1, which is characterized in that also wrap
It includes：First be arranged on resistivity adjustment chamber the first inner chamber side wall opens window and is arranged on resistivity adjustment chamber second
Second on inner chamber side wall opens window.
3. a kind of transient electromagnetic resistivity logging tool graduation apparatus according to claim 1 or 2, which is characterized in that
Resistivity adjustment chamber is made of in hollow cylinder shape glass steel material；A diameter of 0.4-0.5 meters of resistivity adjustment chamber, electricity
The length of resistance rate adjustment chamber is not less than 2 meters.
A kind of 4. transient electromagnetic resistivity logging tool graduation apparatus according to claim 1, which is characterized in that wellbore
Casing is made of glass steel material or steel material；A diameter of 5 inches of well bore casing or 7 inches, the length of well bore casing is longer than
Resistivity adjusts the length of chamber.
5. a kind of transient electromagnetic resistivity logging tool graduation apparatus according to claim 1, which is characterized in that also wrap
It includes：The stent of well bore casing and resistivity adjustment chamber is used to support, the material of the stent has non-magnetic, non-conductive spy
Sign.
6. a kind of transient electromagnetic resistivity logging tool graduation apparatus according to claim 1, which is characterized in that first
Distance of the receiving coil system away from isolation baffle plate is identical with the second distance of the receiving coil system away from isolation baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721395395.5U CN207485419U (en) | 2017-10-26 | 2017-10-26 | A kind of transient electromagnetic resistivity logging tool graduation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721395395.5U CN207485419U (en) | 2017-10-26 | 2017-10-26 | A kind of transient electromagnetic resistivity logging tool graduation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207485419U true CN207485419U (en) | 2018-06-12 |
Family
ID=62477646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721395395.5U Withdrawn - After Issue CN207485419U (en) | 2017-10-26 | 2017-10-26 | A kind of transient electromagnetic resistivity logging tool graduation apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN207485419U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956466A (en) * | 2017-10-26 | 2018-04-24 | 中石化石油工程技术服务有限公司 | A kind of transient electromagnetic resistivity logging tool graduation apparatus |
| CN112112637A (en) * | 2019-06-04 | 2020-12-22 | 中石化石油工程技术服务有限公司 | Measuring method for obtaining formation resistivity in production well |
-
2017
- 2017-10-26 CN CN201721395395.5U patent/CN207485419U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956466A (en) * | 2017-10-26 | 2018-04-24 | 中石化石油工程技术服务有限公司 | A kind of transient electromagnetic resistivity logging tool graduation apparatus |
| CN107956466B (en) * | 2017-10-26 | 2023-09-08 | 中国石油化工集团有限公司 | A scale device for transient electromagnetic resistivity logging instruments |
| CN112112637A (en) * | 2019-06-04 | 2020-12-22 | 中石化石油工程技术服务有限公司 | Measuring method for obtaining formation resistivity in production well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220210 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee after: Shengli logging company of Sinopec Jingwei Co.,Ltd. Address before: 100101 Beichen West Road, Chaoyang District, Beijing 8 Beichen world center, block A 703. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee before: WELL LOGGING COMPANY, SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180612 Effective date of abandoning: 20230908 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180612 Effective date of abandoning: 20230908 |