CN111535755A - Variable-diameter centralizer activated by radio frequency identification technology and use method - Google Patents
Variable-diameter centralizer activated by radio frequency identification technology and use method Download PDFInfo
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- CN111535755A CN111535755A CN202010332184.7A CN202010332184A CN111535755A CN 111535755 A CN111535755 A CN 111535755A CN 202010332184 A CN202010332184 A CN 202010332184A CN 111535755 A CN111535755 A CN 111535755A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 230000004913 activation Effects 0.000 claims abstract description 27
- 239000000178 monomer Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 claims 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a variable-diameter centralizer activated by a radio frequency identification technology and a using method, belonging to the technical field of oil and gas well engineering. The variable-diameter centralizer comprises a single-bow-shaped elastic centralizer, a steel belt buckle, a steel belt, an RFID reader activation assembly and an RFID electronic tag hollow rubber plug; the RFID reader comprises a steel belt buckle, a single-arch elastic centralizer, an RFID reader activation assembly and a single-arch elastic centralizer, wherein the steel belt buckle is fixed in the middle of a centralizing strip of the single-arch elastic centralizer in a welding mode; the RFID electronic tag hollow rubber plug is placed into the variable-diameter centralizer through the inside of the casing, a certain number of RFID electronic tag monomers are released through pressure build-up, and the RFID electronic tag monomers enter the annular space from the bottom of the casing under the impact of well washing liquid and gradually float upwards. The RFID reader circuit board continuously transmits radio frequency signals, after the signals fed back by the RFID electronic tag monomer are tested, the signals are transmitted to the motor control circuit board, the motor control circuit board controls the micro motor to rotate, threaded connection between the screw and two end holes of the steel belt is opened, the screw shaft control component moves upwards integrally, the steel belt is released, and the centering strip bounces off; the centering degree of the casing is ensured, and the time for lowering the casing into the well is shortened. The invention has simple design, low processing cost and convenient assembly.
Description
Technical Field
The invention belongs to the technical field of oil and gas well engineering, and particularly relates to a variable-diameter centralizer activated by using a Radio Frequency Identification (RFID) technology and a using method thereof.
Background
In the well cementation process, the casing centering degree in the well bore is an important factor influencing the displacement efficiency. The centering degree is poor, a wide edge and a narrow edge are easy to form, and cement paste is easy to return upwards along the wide edge when drilling fluid is replaced, so that the drilling fluid on the narrow edge cannot be replaced completely or completely, and the well cementation quality can be seriously influenced. The most effective method for improving the centering degree is to use the centralizer, but the rigid centralizer has a small outer diameter and cannot play a role in centralizing irregular well sections, bellied well sections and sugarcoated haws well sections, and the centralizing strip with large deformation in the elastic centralizer is easy to cause the friction resistance increase of the casing in the well. Therefore, the diameter-variable centralizer is urgently needed, and the centralizing strips are bound before entering the well, so that the problem of high frictional resistance of the casing in the well is solved. After the well is drilled, the centralizing strip is bounced to open, thereby ensuring the centering degree of the casing and shortening the time for drilling the casing.
Disclosure of Invention
The invention aims to provide a variable-diameter centralizer activated by utilizing a radio frequency identification technology and a using method, and the variable-diameter centralizer is characterized by comprising a single-arc-shaped elastic centralizer 1, a steel belt buckle 2, a steel belt 3, an RFID (radio frequency identification) reader activation component 4 and an RFID electronic tag hollow rubber plug 5; the RFID reader activation assembly comprises a steel belt buckle 2, a single-arch elastic centralizer 1, a steel belt 3, an RFID reader activation assembly 4 and a single-arch elastic centralizer, wherein the steel belt buckle 2 is fixed in the middle of a centralizing strip of the single-arch elastic centralizer 1 through welding, the steel belt 3 is located in the middle of the steel belt buckle 2, and the RFID reader activation assembly 4 is fixed at; the RFID electronic tag hollow rubber plug 5 is arranged in the diameter-variable centralizer through the inner part of the sleeve.
The structure of the RFID reader activation component 4 comprises: the device comprises a protective box body 401, a high-temperature-resistant battery 402, one end 403 of a steel belt, a screw shaft control component 404, a screw shaft control component supporting seat 413, a spring 412, a first helical gear 407, a second helical gear 405, a gear shaft 406, a first straight gear 410, a second straight gear 411, a micro motor 408, an RFID reader circuit board and a motor control circuit board 409; wherein the protective box 401 is fixed with one end 403 of the steel strip 3; the protective box 401 is divided into three cavities, a high-temperature-resistant battery 402 is fixed in the right cavity, an RFID reader activation assembly transmission mechanism is installed in the middle cavity, and an RFID reader and a control circuit board 409 are fixed in the left cavity.
The transmission mechanism of the RFID reader activation assembly arranged in the middle cavity is that a micro motor 408 is fixed on a protection box body 401, and a first straight gear 410 is connected with an output shaft of the micro motor 408 and meshed with a second straight gear 411; the second straight gear 411 and the first bevel gear 407 are respectively fixed on the gear shaft 406, and two ends of the gear shaft 406 are correspondingly matched with the protective box 401 in a rotating manner and are lubricated by grease; the second bevel gear 405 is meshed with the first bevel gear 407, the second bevel gear 405 is fixed on the screw shaft control component 404, one end of the screw shaft control component 404 is connected with holes at two ends of the steel belt 3 through threads, and a centering strip is bound; the other end of the bolt shaft control member 404 is clearance fitted into the bore of the bolt shaft control member support 413 and lubricated with grease, and the bore of the bolt shaft control member support 413 is fitted into the spring 412 and contacts the other end of the bolt shaft control member 404; the screw shaft control member support 413 is fixed to the protection case 401.
The RFID electronic tag hollow rubber plug (5) comprises a hollow rubber plug ring (501), a plurality of RFID electronic tag single bodies (502) and a rubber film (503); the RFID electronic tag monomer (502) is adhered to the rubber membrane (503) of the hollow rubber plug (5), and the RFID electronic tag monomer (502) is released while the rubber membrane (503) is damaged in the process of pressing for 2-4 MPa; under the action of pressure, the RFID electronic tag single body (502) enters an annular space between the casing and the well wall through the bottom of the casing.
The RFID electronic tag single body (502) is of a spherical structure and is packaged by utilizing engineering rubber, and the overall density is slightly smaller than water. Because the RFID electronic tag and the RFID reader can influence signal receiving when the antenna directions are coincident, a low-density material and a high-density material are used for balancing when the RFID electronic tag single body (502) is designed, so that the RFID electronic tag single body (502) rotates to a state that a signal is easy to identify in the movement process under the influence of gravity.
A use method of the variable-diameter centralizer activated by the radio frequency identification technology is characterized in that the variable-diameter centralizer is placed in a proper position in a drilling well through a sleeve, an RFID electronic tag hollow rubber plug 5 is placed into the variable-diameter centralizer through the inner portion of the sleeve, a rubber membrane 503 of the hollow rubber plug 5 is damaged through pressure holding of 2-4MPa, and meanwhile an RFID electronic tag monomer 502 located on the rubber membrane is released. Under the action of liquid impact pressure, the RFID electronic tag single body 502 enters an annular space between the casing and the well wall through the bottom of the casing. The high-temperature-resistant battery 402 provides electric energy for the whole variable-diameter centralizer, the RFID reader and the motor control circuit board 409 control the rotation of the micro-motor 408 after receiving a radio frequency signal fed back by an RFID electronic tag monomer located in an annular space between the sleeve and the well wall, the rotation of the micro-motor 408 drives the screw shaft 406 and the first helical gear 407 to rotate through the meshing of the first straight gear 410 and the second straight gear 411, the first helical gear 407 and the second helical gear 405 are meshed to rotate the screw shaft control component 404, and the rotation of the screw shaft control component 404 drives the connecting threads of one end of the screw shaft control component 404 and holes at two ends of the steel belt screw 3 to rotate; the second bevel gear 405 on the bolt shaft control component 404 is engaged with the axial force in the horizontal direction, and the bolt shaft control component 404 integrally moves along the horizontal direction in the rotating process, the connecting threads of the holes at the two ends of the steel belt 3 are released, the restrained centralizing strip is bounced off, the centralizing strip is in the bounced off state, and the centering degree of the sleeve is ensured.
The diameter of a hollow inner hole in the variable-diameter centralizer is phi 146.7mm after the variable-diameter centralizer is bound, the maximum outer diameter after activation is phi 210mm, the length is phi 515mm, and the group of sizes are changed due to different drilling wells.
The invention has the advantages that the structure is simple and reasonable, the casing centering degree can be ensured, and the casing well descending time is shortened. Meanwhile, the tool is simple in design, low in processing cost and convenient to assemble.
Drawings
FIG. 1 is a schematic structural view of a variable diameter centralizer.
FIG. 2 is a block diagram of an RFID reader activation component.
Fig. 3 is a schematic view of the RFID electronic tag hollow rubber plug.
Fig. 4 is a signal transmission diagram of the RFID reader and motor control circuit board 409, the RFID electronic tag unit 502 and the micro-motor.
Fig. 5 is a weight chart of the RFID tag unit 502.
Detailed Description
The invention provides a variable-diameter centralizer activated by radio frequency identification technology and a using method thereof, which are described in the following with reference to the attached drawings.
Fig. 1 is a schematic structural view of the variable diameter centralizer. The variable diameter centralizer shown in fig. 1 comprises a single bow-shaped elastic centralizer 1, a steel belt buckle 2, a steel belt 3, an RFID (radio frequency identification) reader activation component 4 and an RFID electronic tag hollow rubber plug 5; the RFID reader activation assembly comprises a steel belt buckle 2, a single-arch elastic centralizer 1, a steel belt 3, an RFID reader activation assembly 4 and a single-arch elastic centralizer, wherein the steel belt buckle 2 is fixed in the middle of a centralizing strip of the single-arch elastic centralizer 1 through welding, the steel belt 3 is located in the middle of the steel belt buckle 2, and the RFID reader activation assembly 4 is fixed at; the RFID electronic tag hollow rubber plug 5 is arranged in the diameter-variable centralizer through the inner part of the sleeve.
FIG. 2 is a block diagram illustrating an RFID reader activation component. The structure of the RFID reader activation assembly 4 is composed of a protective box 401, a high temperature resistant battery 402, a steel belt end 403, a screw shaft control component 404, a screw shaft control component supporting seat 413, a spring 412, a first helical gear 407, a second helical gear 405, a gear shaft 406, a first straight gear 410, a second straight gear 411, a micro motor 408, an RFID reader and a motor control circuit board 409; wherein the protective box 401 is fixed with one end 403 of the steel strip 3; the protective box 401 is divided into three cavities, a high-temperature-resistant battery 402 is fixed in the right cavity, an RFID reader activation assembly transmission mechanism is installed in the middle cavity, and an RFID reader and a control circuit board 409 are fixed in the left cavity.
The transmission mechanism of the RFID reader activation assembly arranged in the middle cavity is that a micro motor 408 is fixed on a protective box body 401, and a first straight gear 410 is connected with an output shaft of the micro motor 408 and meshed with a second straight gear 411; the second straight gear 411 and the first bevel gear 407 are respectively fixed on the gear shaft 406, and two ends of the gear shaft 406 are correspondingly matched with the protective box 401 in a rotating manner and are lubricated by grease; the second bevel gear 405 is meshed with the first bevel gear 407, the second bevel gear 405 is fixed on the screw shaft control component 404, one end of the screw shaft control component 404 is connected with holes at two ends of the steel belt 3 through threads, and a centering strip is bound; the other end of the bolt shaft control member 404 is clearance fitted into the bore of the bolt shaft control member support 413 and lubricated with grease, and the bore of the bolt shaft control member support 413 is fitted into the spring 412 and contacts the other end of the bolt shaft control member 404; the screw shaft control member support 413 is fixed to the protection case 401.
Fig. 3 is a schematic view of the RFID electronic tag hollow rubber plug. The RFID electronic tag hollow rubber plug 5 comprises a hollow rubber plug ring 501, a plurality of RFID electronic tag single bodies 502, a rubber film 503,
A method for using a variable-diameter centralizer activated by a radio frequency identification technology comprises the steps of firstly putting the variable-diameter centralizer into a proper position in a well through a sleeve, then putting an RFID electronic tag hollow rubber plug 5 into the variable-diameter centralizer through the inner part of the sleeve, destroying a rubber film (503) of the hollow rubber plug 5 by suppressing pressure of 2-4Mpa, simultaneously releasing a plurality of RFID electronic tag monomers, entering an annular space between the sleeve and a well wall under the action of liquid impact pressure, and gradually floating; the high-temperature-resistant battery 402 provides electric energy for the whole variable-diameter centralizer, the RFID reader and the motor control circuit board 409 continuously send radio-frequency signals, after the radio-frequency signals fed back by the RFID electronic tag monomer are received, the RFID reader and the motor control circuit board 409 control the rotation of the micro-motor 408, the rotation of the micro-motor 408 drives the screw shaft 406 and the first helical gear 407 to rotate through the meshing of the first straight gear 410 and the second straight gear 411, the first helical gear 407 and the second helical gear 405 are meshed to enable the screw shaft control component 404 to rotate, and the rotation of the screw shaft control component 404 can drive one end of the screw shaft control component 404 and the connecting threads of the holes at the two ends of the steel belt 3 to rotate; the second bevel gear 405 on the bolt shaft control component 404 is engaged with the axial force in the horizontal direction, and the bolt shaft control component 404 integrally moves along the horizontal direction in the rotating process, the connecting threads of the holes at the two ends of the steel belt 3 are released, the restrained centralizing strip is bounced off, the centralizing strip is in the bounced off state, and the centering degree of the sleeve is ensured.
The diameter of a hollow inner hole in the variable-diameter centralizer is phi 146.7mm after the variable-diameter centralizer is bound, the maximum outer diameter after activation is phi 210mm, the length is phi 515mm, and the group of sizes are changed due to different drilling wells.
Fig. 4 shows a signal transmission diagram of an RFID reader and motor control circuit board 409, an RFID electronic tag unit 502 and a micro-motor, the RFID reader circuit board and the motor control circuit board 409 continuously transmit radio frequency signals, the RFID electronic tag unit 502 feeds back signals to the RFID reader circuit board and the motor control circuit board 409 after receiving the radio frequency signals, the RFID reader circuit board and the motor control circuit board 409 control the micro-motor 408 to rotate,
in the weighted graph of the RFID tag 502 shown in fig. 5, the antenna direction of the RFID tag 502 is not overlapped with the antenna direction of the RFID reader and the motor control circuit board 409, but is as vertical as possible, during the movement of the RFID tag 502 in the annular space. The RFID tag 502 is designed with low density and high density weights, so that signals of the RFID tag 502, the RFID reader and the motor control circuit board 409 can be received more easily.
Claims (8)
1. A variable-diameter centralizer activated by using a radio frequency identification technology is characterized by comprising a single-bow-shaped elastic centralizer (1), a steel belt buckle (2), a steel belt (3), an RFID reader activation component (4) and an RFID electronic tag hollow rubber plug (5); the RFID reader comprises a steel belt buckle (2), a single-arch elastic centralizer (1), a RFID reader activation assembly (4) and a single-arch elastic centralizer, wherein the steel belt buckle (2) is fixed in the middle of a centralizing strip of the single-arch elastic centralizer (1) through welding, the steel belt (3) is located in the middle of the steel belt buckle (2), and the RFID reader activation assembly (4) is fixed at one end of the steel belt; the RFID electronic tag hollow rubber plug (5) is placed into the variable-diameter centralizer through the inner part of the sleeve; wherein the RFID is a radio frequency identifier.
2. The variable diameter centralizer activated using radio frequency identification technology of claim 1, wherein the RFID reader activation assembly is structured to: the device comprises a protective box body (401), a high-temperature-resistant battery (402), one end (403) of a steel belt, a screw shaft control component (404), a screw shaft control component supporting seat (413), a spring (412), a first helical gear (407), a second helical gear (405), a gear shaft (406), a first straight gear (410), a second straight gear (411), a micro motor (408), an RFID reader circuit board and a motor control circuit board (409); wherein the protective box body (401) is fixed with one end 403) of the steel belt (3); the protection box body (401) is divided into three cavities, a high-temperature-resistant battery (402) is fixed in the right cavity, an RFID reader activation assembly transmission mechanism is installed in the middle cavity, and an RFID reader and a control circuit board (409) are fixed in the left cavity.
3. The variable diameter centralizer activated by radio frequency identification technology according to claim 2, wherein the transmission mechanism of the RFID reader activation assembly installed in the cavity is a micro motor (408) fixed on the protective box body (401), and a first spur gear (410) is connected with an output shaft of the micro motor (408) and meshed with a second spur gear (411); the second straight gear (411) and the first helical gear (407) are respectively fixed on a gear shaft (406), and two ends of the gear shaft (406) are correspondingly matched with the protective box body (401) in a rotating way and are lubricated by grease; the second bevel gear (405) is meshed with the first bevel gear (407), the second bevel gear (405) is fixed on a screw shaft control component (404), one end of the screw shaft control component (404) is in threaded connection with holes at two ends of the steel belt (3), and a centering strip is bound; the other end of the screw shaft control member (404) is in sliding fit with the inner hole of the screw shaft control member support seat (413) and is lubricated by lubricating grease, and a spring (412) is arranged in the inner hole of the screw shaft control member support seat (413) and is in contact with the other end of the screw shaft control member (404); the screw shaft control member support base (413) is fixed on the protective case (401).
4. The variable diameter centralizer activated by radio frequency identification technology according to claim 1, wherein the RFID electronic tag hollow plug (5) comprises a hollow plug ring (501), a plurality of RFID electronic tag cells (502) and a rubber membrane (503); the RFID electronic label monomer (502) is adhered to the rubber membrane (503) of the hollow rubber plug (5).
5. The variable-diameter centralizer activated by the radio frequency identification technology according to claim 4, wherein the RFID electronic tag unit (502) in the electronic tag hollow rubber plug (5) is of a spherical structure, the RFID electronic tag hollow rubber plug is packaged by engineering rubber, the overall density is slightly less than water, and signal receiving is affected when the RFID electronic tag is overlapped with the RFID reader antenna direction, so that the RFID electronic tag unit (502) is designed to be weighted by low-density and high-density materials, and the RFID electronic tag unit (502) rotates to a state that signal signals are easy to recognize when moving under the influence of gravity.
6. A method for using a variable-diameter centralizer activated by a radio frequency identification technology is characterized in that the variable-diameter centralizer is placed at a proper position in a well through a sleeve, an RFID electronic tag hollow rubber plug (5) is placed into the variable-diameter centralizer through the inner part of the sleeve, a rubber membrane (503) of the hollow rubber plug (5) is damaged through pressure holding of 2-4MPa, and meanwhile an RFID electronic tag monomer (502) located on the rubber membrane is released; under the action of liquid impact pressure, the RFID electronic tag single body (502) enters an annular space between the casing and the well wall through the bottom of the casing.
7. The method for using the variable diameter centralizer activated by the radio frequency identification technology according to claim 6, wherein the high temperature resistant battery (402) provides power for the whole variable diameter centralizer, the FRID reader circuit board and the motor control circuit board (409) continuously send radio frequency signals, the FRID electronic tag hollow rubber plug (5) receives the radio frequency signals and then feeds back the radio frequency signals to the FRID reader circuit board and the motor control circuit board (409), the RFID reader circuit board and the motor control circuit board (409) control the rotation of the micro-motor (408), the rotation of the micro-motor (408) drives the gear shaft (406) and the first helical gear (407) to rotate by the meshing of the first spur gear (410) and the second spur gear (411), the first helical gear (407) and the second helical gear (405) are meshed to rotate the screw shaft control member (404), and the rotation of the screw shaft control member (404) drives the connection screw of one end of the screw shaft control member (404) and the holes at the two ends of the steel belt (3) to rotate Rotating the patterns; the second bevel gear (405) on the screw shaft control component (404) is engaged with the axial force in the horizontal direction, the screw shaft control component (404) integrally moves in the horizontal direction in the rotating process, the connecting threads of the holes at the two ends of the steel belt (3) are released, the restrained centering strip is bounced off, and the centering strip is in the bounced state, so that the centering degree of the sleeve is ensured.
8. The method of using a variable diameter centralizer activated by radio frequency identification technology as claimed in claim 6 wherein the maximum bound external diameter of the variable diameter centralizer is Φ 165mm and the internal hollow bore diameter of the variable diameter centralizer is Φ 146.7mm, the maximum external diameter after activation is Φ 210mm and the length is Φ 515mm, and the set of dimensions varies from well to well.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010332184.7A CN111535755B (en) | 2020-04-24 | 2020-04-24 | Variable-diameter centralizer activated by radio frequency identification technology and use method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010332184.7A CN111535755B (en) | 2020-04-24 | 2020-04-24 | Variable-diameter centralizer activated by radio frequency identification technology and use method |
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| CN111535755A true CN111535755A (en) | 2020-08-14 |
| CN111535755B CN111535755B (en) | 2021-03-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876383A (en) * | 2022-05-11 | 2022-08-09 | 中国农业大学 | Variable-diameter centralizer activated by wood's alloy and performance testing device |
| CN117888833A (en) * | 2024-03-14 | 2024-04-16 | 山东万盛电气有限公司 | Anticreep sleeve centralizer |
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| WO2014202759A2 (en) * | 2013-06-21 | 2014-12-24 | Perigon Da | Casing centralizing system and method for centralizing a casing |
| WO2016126244A1 (en) * | 2015-02-04 | 2016-08-11 | Halliburton Energy Services, Inc. | Fluid monitoring using radio frequency identification |
| CN205484825U (en) * | 2016-01-13 | 2016-08-17 | 福建三鑫隆信息技术开发股份有限公司 | Remote intelligence reading and writing well lid equipment among high positioning accuracy |
| CN206000524U (en) * | 2016-08-21 | 2017-03-08 | 中国石油化工股份有限公司 | Layering section exploitation flow string and regulation device that a kind of double-direction radio identification controls |
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2020
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014202759A2 (en) * | 2013-06-21 | 2014-12-24 | Perigon Da | Casing centralizing system and method for centralizing a casing |
| WO2016126244A1 (en) * | 2015-02-04 | 2016-08-11 | Halliburton Energy Services, Inc. | Fluid monitoring using radio frequency identification |
| CN205484825U (en) * | 2016-01-13 | 2016-08-17 | 福建三鑫隆信息技术开发股份有限公司 | Remote intelligence reading and writing well lid equipment among high positioning accuracy |
| CN206000524U (en) * | 2016-08-21 | 2017-03-08 | 中国石油化工股份有限公司 | Layering section exploitation flow string and regulation device that a kind of double-direction radio identification controls |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876383A (en) * | 2022-05-11 | 2022-08-09 | 中国农业大学 | Variable-diameter centralizer activated by wood's alloy and performance testing device |
| CN117888833A (en) * | 2024-03-14 | 2024-04-16 | 山东万盛电气有限公司 | Anticreep sleeve centralizer |
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| Publication number | Publication date |
|---|---|
| CN111535755B (en) | 2021-03-30 |
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