CN111594138A - Device for comprehensively testing working parameters of casing - Google Patents
Device for comprehensively testing working parameters of casing Download PDFInfo
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- CN111594138A CN111594138A CN202010469869.6A CN202010469869A CN111594138A CN 111594138 A CN111594138 A CN 111594138A CN 202010469869 A CN202010469869 A CN 202010469869A CN 111594138 A CN111594138 A CN 111594138A
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 239000011229 interlayer Substances 0.000 claims abstract description 21
- 239000003208 petroleum Substances 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 11
- 238000005553 drilling Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012502 risk assessment Methods 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010224 classification analysis Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/08—Measuring diameters or related dimensions at the borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Remote Sensing (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses a device for comprehensively testing working parameters of a casing, which is characterized in that an annular interlayer is arranged in the existing petroleum casing, sensitive elements corresponding to parameters to be tested are fixedly arranged in the annular interlayer, the arrangement type and the number of the sensitive elements can be adjusted according to actual requirements so as to measure related parameters, and the sensitive elements are connected to a data processing end through data lines; by the device, logging while drilling can be realized in a drilling stage, the service state and environmental data of the casing at any position can be monitored in real time, the process can be adjusted in real time under the condition that the well construction period is not influenced, and the high efficiency and safety of a shaft pipe column are ensured. And in the well repairing stage, data information such as deformation conditions, positions and environmental parameters of the casing can be provided in real time, a well repairing process can be accurately and efficiently formulated, and data in the well repairing process can be monitored in real time.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the field of petroleum pipes, and particularly relates to a device for comprehensively testing working parameters of a casing.
[ background of the invention ]
The petroleum casing pipe is an important component of a shaft pipe column of an oil and gas field, mainly plays a role in fixing a shaft wall and preventing shaft wall collapse in the traditional shaft pipe column engineering of the oil and gas field, and is the most important solid barrier for conveying oil and gas resources from a shaft bottom to a ground channel; in addition, in the development of unconventional oil and gas such as shale gas, an oil casing pipe is directly used as a conveying channel for oil and gas resources from the bottom of a well to the surface. Along with the development of the petroleum industry, on one hand, due to the reasons of underground complexity and the like, the environment working condition change of the working process of the casing pipe is large in the drilling process, the underground environment change cannot be monitored in real time by the existing means, the technological measures are adjusted in a targeted manner, and the casing pipe can be guaranteed to finish the drilling work efficiently and safely; secondly, due to geological conditions, engineering operation, casing string materials and the like, the problem of casing failure of the oil and gas field is frequent, underground accident handling is affected by deformation of the casing string and the like, a logging tool cannot be put in, underground direct data information is deficient, the casing string is difficult to maintain, and the cost is high; thirdly, because of lack of direct support of underground monitoring data, the casing damage treatment has the problems of blindness and low efficiency on old well reconstruction, new well material selection and deployment, safety evaluation, risk assessment and the like; fourthly, the shaft casing string is influenced by shaft environment in the production operation and maintenance stage, and cannot monitor environment and production data in real time, so that the core problems in intelligent oil field construction such as comprehensive optimization promotion of well pattern production efficiency, major production deployment intelligent research and judgment and the like are seriously influenced.
[ summary of the invention ]
The invention aims to overcome the defects of the prior art, provides a device for comprehensively testing the working parameters of a casing, and solves the problems that in the prior art, the related parameters are difficult to monitor, the improvement of the production efficiency is influenced and the like in the working process of the casing.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a device for comprehensively testing the working parameters of a casing comprises an oil casing, wherein an annular interlayer is arranged between the inner wall of the oil casing and the outer wall of the oil casing, and a sensitive element is arranged in the annular interlayer;
the sensitive elements comprise a strain sensor, a temperature sensor and an ultrasonic sensor, and each sensitive element is simultaneously contacted with the inner wall of the sleeve and the outer wall of the sleeve; each sensitive element is connected to the data processing end through a data transmission line.
The invention is further improved in that:
preferably, four rows of sensing elements are arranged in the annular interlayer, and the four rows of sensing elements are equally distributed around the axis of the petroleum casing pipe.
Preferably, the sensitive elements on each column comprise a plurality of strain sensors, a plurality of temperature sensors and a plurality of ultrasonic sensors, and gaps are reserved between adjacent sensitive elements.
Preferably, the distance between adjacent strain sensors on the same row is L1, and L1 is the maximum test length of the strain sensors.
Preferably, the distance between adjacent temperature sensors on the same column is L2, and L2 is the maximum test length of the temperature sensors.
Preferably, the distance between adjacent ultrasonic sensors on the same column is L3, and L3 is the maximum test length of the ultrasonic sensors.
Preferably, the sensitive elements of the same type on the same column are connected through the same data transmission line, and both ends of the data transmission line are connected to the data processing end.
Preferably, the two ends of the petroleum casing pipe are provided with sealing structures, and the sealing structures, the inner wall of the casing pipe and the outer wall of the casing pipe are integrally formed.
Preferably, the sealing structure is provided with a data transmission line hole, and the data transmission line passes through the data transmission line hole.
Preferably, the data processing terminal is a computer.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a device for comprehensively testing working parameters of a casing based on the production requirements, wherein an annular interlayer is arranged in the existing petroleum casing, sensitive elements corresponding to the parameters to be tested are fixedly arranged in the annular interlayer, the arrangement types and the number of the sensitive elements can be adjusted according to actual requirements so as to measure related parameters, and the sensitive elements are connected to a data processing end through data lines; by the device, logging while drilling can be realized in a drilling stage, the service state and environmental data of the casing at any position can be monitored in real time, the process can be adjusted in real time under the condition that the well construction period is not influenced, and the high efficiency and safety of a shaft pipe column are ensured. And in the well repairing stage, data information such as deformation conditions, positions and environmental parameters of the casing can be provided in real time, a well repairing process can be accurately and efficiently formulated, and data in the well repairing process can be monitored in real time. In the aspect of casing damage analysis and treatment, underground monitoring data such as the service condition of the casing string and the change condition of environmental parameters in all directions can be provided, important data support is provided for old well reconstruction, new well material selection and deployment, safety evaluation, risk assessment and the like, and the service safety of the casing string is guaranteed. In the production operation and maintenance stage, parameters such as annular pressure of a casing string, temperature and corrosion condition of the outer wall of an oil pipe can be provided, the pressure of a production casing, the specification of an oil nozzle, the power of an oil pumping machine, the pump detection period and the like are controlled through monitoring data, the recovery efficiency and the production efficiency are improved, and important support is provided for intelligent oil field construction such as switch well deployment, well full-life cycle management, major production deployment intelligent research and judgment and the like. The invention can realize real-time logging under the working conditions of certain temperature, pressure and well depth, and provides technical support for ensuring the integrity of a shaft, and the invention has the following advantages:
the problem that the existing multi-arm caliper cannot smoothly pass through a deformation position is solved, and the defect that the multi-arm caliper cannot test the deformation direction is overcome;
secondly, the device has the function of an underground television, can display the specifications of a displacement field, a strain field, a stress field, a temperature field and an erosion pit at different well depth positions of the sleeve in real time, and is convenient for adjusting and optimizing the process in real time on site;
the invention belongs to logging while drilling, avoids high logging cost, saves the well construction cost, and has convenient operation and accurate result.
Furthermore, four rows of sensing elements which are equally distributed are arranged in the annular interlayer, so that the measuring points of the petroleum casing pipe which need to be measured can be measured in an all-around manner.
Furthermore, each row is provided with a plurality of sensitive elements, and the device can test according to actual requirements.
Further, the distance between the strain sensors, the distance between the temperature sensors, and the distance between the ultrasonic sensors on the same column are defined so that all positions within the casing are within the test range.
Furthermore, the sensitive elements of the same type on the same column are connected through the same data transmission line, and data are transmitted to the data processing end.
Furthermore, sealing structures are arranged at two ends of the petroleum casing pipe, so that the test environment of the sensitive element is a closed environment, and the accuracy of measured data is guaranteed.
Furthermore, a data transmission line hole is formed in the sealing structure, and the data transmission line is connected to the data processing end through the transmission line hole.
[ description of the drawings ]
FIG. 1 is an overall structural view of an oil casing provided with a strain sensor and a temperature sensor according to the present invention;
FIG. 2 is an overall structural view of an oil casing provided with an ultrasonic sensor according to the present invention;
FIG. 3 is a cross-sectional view of an oil casing of the present invention;
FIG. 4 is an end view of an oil casing according to the present invention;
FIG. 5 is a schematic diagram of the operation of the sensor of the present invention;
wherein: 1-outer wall of the casing; 2-a sensitive element; 3-inner wall of casing; 4-a data transmission line; 5-a data processing terminal; 6-data transmission line hole; 7-oil casing; 8-a ring-shaped interlayer; 9-a strain sensor; 10-a temperature sensor; 11-a sealing structure; 12-ultrasonic sensor.
[ detailed description ] embodiments
The invention is described in further detail below with reference to the accompanying drawings:
in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and encompass, for example, both fixed and removable connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the invention discloses a device and a method for comprehensively testing working parameters of a casing, the device comprises an oil casing 7, a data transmission line 4, a computer 5 and a data transmission line hole 6, the side wall of the oil casing 7 comprises a casing outer wall 1 and a casing inner wall 3 which are opposite, an annular interlayer 8 is arranged between the casing outer wall 1 and the casing inner wall 3, the annular interlayer 8 comprises a hollow annular interlayer, a sensing element 2 is distributed in the hollow annular interlayer, two ends of the annular interlayer 8 are provided with sealing structures 11, the casing outer wall 1 and the casing outer wall 1 are integrally formed, and the sealing structures 11 are provided with the data transmission line hole 6.
The sensitive elements 2 comprise a strain sensor 9, a temperature sensor 10 and an ultrasonic sensor 12, and each sensitive element 2 is in contact with the outer wall 1 of the casing and the inner wall 3 of the casing. The arrangement mode of the sensitive elements 2 is as shown in fig. 1 and fig. 2, the strain sensors 9 are arranged in the annular interlayer 8 at equal intervals along the axial direction of the petroleum casing 7, the distance between every two adjacent strain sensors 9 is L1, and the magnitude of the L1 is determined by the strain range which can be acquired by the strain sensors 9; the temperature sensors 10 are arranged according to the requirements in the oil casing 7, the distance between adjacent temperature sensors 10 is L2, and the value of L2 is determined according to the temperature points to be acquired in the oil casing 7; the ultrasonic sensors 12 are arranged at equal intervals in the annular interlayer 8 along the axial direction of the oil casing 7, the distance between every two adjacent ultrasonic sensors 12 is L3, and the value of L3 is determined by the data range which can be measured by the ultrasonic waves emitted by the strain sensors 9.
Referring to fig. 3, four temperature sensors 10 are equally arranged on the annular interlayer 8 along the circumferential direction of the petroleum casing 7, each temperature sensor 10 is used for measuring the temperature of the inner wall 3 and the outer wall 1 of the petroleum casing 7, the arrangement mode can ensure that two temperatures of the same set point on the petroleum casing 7 are measured, and a corresponding curve of the well depth and the temperature is established according to the temperature values at different well depth positions.
Referring to fig. 3 and 5, similarly, four strain sensors 9 are equally arranged on a circle of annular interlayer 8, each strain sensor 9 can simultaneously measure strains in four directions on the oil casing 7, as shown in fig. 5, a well logging principle diagram of sensitive elements in the casing is shown, the inner layer and the outer layer test the double- layer casings 1, 2, 3 and 4 in real time, wherein 1 corresponds to the radial strain of the casing outer wall 1 of a measurement point, 2 corresponds to the axial strain of the measurement point of the oil casing 7, 3 corresponds to the radial strain of the casing inner wall 3 of the measurement point, and 4 corresponds to the circumferential strain of the oil casing 7 of the measurement point, the radial and axial deformation conditions of the casing of the measurement point can be measured in real time by testing the strains in the four directions, and then the stress distribution is determined according to Hook law, and finally the unidirectional load state of the. If four strain sensors 9 are provided on one circumference of the oil casing 7, the load state at four points on one circumference can be measured.
Referring to fig. 3, in the same way, four ultrasonic sensors 12 are equally arranged on the ring-shaped interlayer 8, ultrasonic signals emitted by the ultrasonic sensors 12 are fan-shaped, and the appearance of the corrosion pit in the casing is determined through a single-direction ultrasonic signal.
Referring to fig. 4, as can be seen from the above description of the structure, on 1 petroleum casing 7, along its circumferential direction, there are four rows of sensing elements 2 around its central axis, the distances between the four rows of sensing elements 2 are equally divided, the sensing elements 2 of the same type on each row are connected by the same data transmission line 4, that is, the strain sensors 9 on the same row are connected by one data transmission line 4, the temperature sensors 10 on the same row are connected by one data transmission line 4, the ultrasonic sensors 12 on the same row are connected by one data transmission line 4, each data transmission line 4 passes through the respective data transmission line hole 6 at both ends and is connected to the data processing end 5, and the data processing end 5 is a general computer and data processing end 5.
The casing structure casing of the present invention is suitable for all specifications of casings specified in the API Spec 5CT casing and tubing Specification.
The specific using process of each petroleum casing pipe is as follows:
and (3) displaying the casing while drilling: each sensor 2 can test casing deformation data within the range of l/2 of the extension length of the sensor. The sensitive elements are provided with different numbers, test information is transmitted to a data transmission system through a data transmission line, and the data transmission system determines the stress state and the deformation state of the casing at any well depth position through classification analysis. The real-time load and displacement dynamic display at any well depth position can be realized on the basis of the existing underground television.
When the device is used for evaluating the performance of the casing, the tensile strength, the external extrusion strength and the internal pressure strength of the novel casing are all suitable for the mechanical properties of the casings of all specifications specified in ISO 10400 petroleum and natural gas industrial casings, oil pipes, drill rods and pipeline pipe performance formulas and calculations used as the casings or the oil pipes.
(4) Direct measurement of data: the sensitive element of the shaft is a data information integration tool, and can simultaneously monitor axial strain, radial strain, temperature value, single-direction ultrasonic signals and the like at the position.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The device for comprehensively testing the working parameters of the casing is characterized by comprising an oil casing (7), wherein an annular interlayer (8) is arranged between the inner wall (3) of the oil casing (7) and the outer wall (1) of the oil casing, and a sensitive element (2) is arranged in the annular interlayer (8);
the sensitive elements (2) comprise strain sensors (9), temperature sensors (10) and ultrasonic sensors (12), and each sensitive element (2) is simultaneously contacted with the inner wall (3) of the sleeve and the outer wall (1) of the sleeve; each sensitive element (2) is connected to a data processing terminal (5) through a data transmission line (4).
2. Device for the comprehensive testing of the operating parameters of casings according to claim 1, characterized in that four rows of sensitive elements (2) are provided in the annular sandwich (8), the four rows of sensitive elements (2) being equally spaced around the axis of the oil casing (7).
3. The device for comprehensive testing of the operating parameters of the casing according to claim 2, characterized in that the sensitive elements (2) on each row comprise a plurality of strain sensors (9), a plurality of temperature sensors (10) and a plurality of ultrasonic sensors (12), and the adjacent sensitive elements (2) have a gap.
4. A device for comprehensive testing of casing operating parameters according to claim 3, characterized in that the distance between adjacent strain sensors (9) on the same row is L1, and L1 is the maximum test length of the strain sensors (9).
5. A device for comprehensive testing of casing operating parameters according to claim 3, characterized in that the distance between adjacent temperature sensors (10) on the same row is L2, and L2 is the maximum test length of the temperature sensors (10).
6. The apparatus for fully testing casing operating parameters according to claim 3, wherein the distance between adjacent ultrasonic sensors (12) on the same row is L3, and L3 is the maximum testing length of the ultrasonic sensors (12).
7. A device for comprehensive testing of the operating parameters of bushings according to claim 3, characterized in that the sensitive elements (2) of the same type on the same row are connected by the same data transmission line (4), both ends of the data transmission line (4) being connected to the data processing terminal (5).
8. The device for comprehensively testing the working parameters of the casing according to any one of claims 1 to 7, characterized in that the two ends of the petroleum casing (7) are provided with sealing structures (11), and the sealing structures (11) are integrally formed with the inner casing wall (3) and the outer casing wall (1).
9. The device for comprehensively testing the working parameters of the casing according to claim 8, wherein the sealing structure (11) is provided with a data transmission line hole (6), and the data transmission line (4) passes through the data transmission line hole (6).
10. The device for comprehensively testing the working parameters of the casing according to claim 1, wherein the data processing terminal (5) is a computer.
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| CN202010469869.6A CN111594138A (en) | 2020-05-28 | 2020-05-28 | Device for comprehensively testing working parameters of casing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010469869.6A CN111594138A (en) | 2020-05-28 | 2020-05-28 | Device for comprehensively testing working parameters of casing |
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|---|---|---|---|---|
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| CN104121946A (en) * | 2014-07-21 | 2014-10-29 | 哈尔滨工业大学 | Intelligent casing pipe monitor system based on optical fiber sensing technology |
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| CN107299833A (en) * | 2017-07-06 | 2017-10-27 | 中国石油大学(北京) | A kind of Casing Detection leak source apparatus and method |
| US20190017365A1 (en) * | 2016-03-29 | 2019-01-17 | Halliburton Energy Services, Inc. | Downhole cement strain gauge |
| CN110318688A (en) * | 2018-03-27 | 2019-10-11 | 中国石油化工股份有限公司 | A kind of cementing quality monitoring pipe nipple apparatus and method of data capture |
| US20190383139A1 (en) * | 2018-06-18 | 2019-12-19 | Halliburton Energy Services, Inc. | Wellbore tool including a petro-physical identification device and method for use thereof |
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2020
- 2020-05-28 CN CN202010469869.6A patent/CN111594138A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5829520A (en) * | 1995-02-14 | 1998-11-03 | Baker Hughes Incorporated | Method and apparatus for testing, completion and/or maintaining wellbores using a sensor device |
| CN101397904A (en) * | 2008-11-05 | 2009-04-01 | 大庆油田有限责任公司 | Method for monitoring downhole casing strain by using optical fibre sensor |
| US20120017673A1 (en) * | 2009-01-09 | 2012-01-26 | Oivind Godager | Pressure Management System For Well Casing Annuli |
| US20160327675A1 (en) * | 2013-10-03 | 2016-11-10 | Halliburton Energy Services, Inc. | Downhole inspection with ultrasonic sensor and conformable sensor responses |
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| CN104110250A (en) * | 2014-07-30 | 2014-10-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Storage type underground tool torque measuring device |
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Application publication date: 20200828 |