CN106761547B - Novel underground electric control power switch - Google Patents
Novel underground electric control power switch Download PDFInfo
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- CN106761547B CN106761547B CN201611148218.7A CN201611148218A CN106761547B CN 106761547 B CN106761547 B CN 106761547B CN 201611148218 A CN201611148218 A CN 201611148218A CN 106761547 B CN106761547 B CN 106761547B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 210000001503 joint Anatomy 0.000 claims abstract description 21
- 238000010008 shearing Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000605 extraction Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/134—Bridging plugs
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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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Actuator (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
The invention relates to the technical field of bridge plug setting devices, in particular to a novel underground electric control power switch; the device comprises a driving device, a connecting disc, a middle joint, a piston sleeve, a transmission connecting rod, a central rod, a connecting head and a setting cylinder; the connecting disc, the middle joint, the piston sleeve and the connector are sequentially and fixedly arranged together from top to bottom, and the outer side of the lower part of the connector is connected with the inner side of the upper part of the setting cylinder through a shearing pin; the driving device is fixedly arranged on the connecting disc. The bridge plug setting and releasing device has the characteristics of safety, reliability, short setting time and convenience in extraction and reuse, is convenient to operate, improves the working efficiency, and meets the requirements of site safe production and quality.
Description
Technical Field
The invention relates to the technical field of bridge plug setting devices, in particular to a novel underground electric control power switch.
Background
Because the cable setting bridge plug stratum sealing process has the characteristics of short construction period, accurate positioning of bridge plug sealing position, low construction cost and the like, the process is generally adopted in the stratum sealing technology of various domestic oil fields, and after the traditional cable bridge plug setting sealing process adopting detonator powder explosion to provide power, an electric hydraulic bridge plug setting device is generally used at present, but the electric hydraulic bridge plug setting device which is generally used at present has the following problems in use:
1. the electro-hydraulic bridge plug setting tool is adopted, the electric hydraulic pump is powered from the ground to the underground motor to start working until the bridge plug setting releasing, the generally required electrifying working time is 8-15 min, and the requirements on construction vehicles and cable equipment are high. The on-off performance, the insulation performance and other performances of the construction cable directly influence the construction quality.
Because the setting releasing time of the electro-hydraulic bridge plug setting tool is long, when a water injection well is encountered, the inner wall of the sleeve and the outer wall of an oil pipe are corroded by water injected for a long time, objects such as iron rust and the like are easy to generate, the sleeve is difficult to be washed completely by clean water, the tool entering the well is easy to be clamped, the setting time of the electro-hydraulic tool is more than 7min, and therefore the tool is precipitated and clamped and cannot be lifted out after the bridge plug setting releasing is completed.
When a well with certain sand production in stratum is encountered, the releasing is finished even if the bridge plug tool has finished working stroke, but the liquid production capacity of the stratum in the well is sealed by the bridge plug after the bridge plug is seated, sand accumulates and subsides in the working time of the tool to bury the tool, so that the clamping tool cannot be lifted out, and the requirements of on-site safe production and quality cannot be met.
Disclosure of Invention
The invention provides a novel underground electric control power switch, overcomes the defects of the prior art, and can effectively solve the problems that the existing electric hydraulic bridge plug setting device is easy to be blocked and cannot be put out due to long releasing time, and the requirements on site safety production and quality cannot be met.
The technical scheme of the invention is realized by the following measures: a novel underground electric control power switch comprises a driving device, a connecting disc, a middle joint, a piston sleeve, a transmission connecting rod, a central rod, a connector and a setting cylinder; the connecting disc, the middle joint, the piston sleeve and the connector are fixedly installed together from top to bottom in sequence, and the outer side of the lower part of the connector and the inner side of the upper part of the setting cylinder are connected together through a shearing pin; the driving device is fixedly arranged on the connecting disc, an upper sleeve body is integrally fixed on the inner side of the middle part of the piston sleeve, a cup-shaped piston body with an upward opening is sleeved in a lower cavity of the upper sleeve body, threads are arranged on the inner side of the cup-shaped piston body, the lower end of a transmission connecting rod and the cup-shaped piston body are installed together through the threads, a distance is reserved between the lower end of the transmission connecting rod and the bottom end face of the inner cavity of the cup-shaped piston body, the upper end of the transmission connecting rod penetrates through a middle joint and is fixedly installed with a power output end of the driving device through a coupler, a radial liquid inlet hole communicated with the inner cavity of the upper sleeve body is formed in the piston sleeve corresponding to the middle position of the cup-shaped piston body, a lower sleeve body is integrally fixed on the inner side of the middle part of the sitting and sealing cylinder, a sitting and sealing piston is sleeved on a center rod, the upper end of the center rod and the connector are fixedly connected together, center holes communicated with the upper part and the middle part of the center rod are formed in the connector, a radial liquid outlet hole communicated with the center rod is formed in the center rod above the lower sleeve body, and the liquid outlet hole is located above the radial liquid outlet hole.
The following is further optimization or/and improvement of the technical scheme of the invention:
the driving device is a motor; or/and a cylinder body is fixedly arranged on the connecting disc, and the driving device is positioned in the cylinder body.
The inner side of the upper part of the middle joint is sequentially provided with four mounting grooves from top to bottom, the four mounting grooves on the upper part of the middle joint are respectively and sequentially provided with a first thrust bearing, a thrust plate, a second thrust bearing and a first deep groove rolling bearing from top to bottom, and the first thrust bearing, the thrust plate, the second thrust bearing and the first deep groove rolling bearing are respectively sleeved on the transmission connecting rod.
The inner side of the lower part of the intermediate joint is sequentially provided with two mounting grooves from top to bottom, a second deep groove rolling bearing and a third thrust bearing are sequentially mounted in the two mounting grooves at the lower part of the intermediate joint from top to bottom respectively, and the second deep groove rolling bearing and the third thrust bearing are sleeved on the transmission connecting rod respectively.
The connecting disc seat is arranged on the middle joint and fixedly installed together through at least two bolts, the outer side of the lower part of the middle joint and the inner side of the upper part of the piston sleeve are fixedly installed together through threads, and the inner side of the lower part of the piston sleeve and the outer side of the upper part of the connecting head are fixedly installed together through threads.
The sealing ring is arranged between the upper part of the cup-shaped piston body and the upper sleeve body, the sealing ring is arranged between the lower part of the cup-shaped piston body and the upper sleeve body, the sealing ring is arranged between the setting piston and the central rod, and the sealing ring is arranged between the lower sleeve body and the central rod.
The bridge plug setting and releasing device has the characteristics of safety, reliability, short setting time and convenience in extraction and reuse, is convenient to operate, improves the working efficiency, and meets the requirements of site safe production and quality.
Drawings
FIG. 1 is a schematic sectional view of the preferred embodiment of the present invention.
The codes in the figures are respectively: the device comprises a driving device 1, a connecting disc 2, a middle joint 3, a piston sleeve 4, a transmission connecting rod 5, a center rod 6, a connecting head 7, a setting cylinder 8, a shearing pin 9, an upper sleeve body 10, a cup-shaped piston body 11, a coupling 12, a radial liquid inlet hole 13, a lower sleeve body 14, a setting piston 15, a center hole 16, a radial liquid outlet hole 17, a cylinder body 18, a first thrust bearing 19, a push-up disc 20, a second thrust bearing 21, a first deep groove rolling bearing 22, a second deep groove rolling bearing 23, a third thrust bearing 24, a bolt 25 and a sealing ring 26.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention is further described with reference to the following examples and figures:
as shown in the attached figure 1, the novel underground electric control power switch comprises a driving device 1, a connecting disc 2, a middle joint 3, a piston sleeve 4, a transmission connecting rod 5, a central rod 6, a connector 7 and a setting cylinder 8; the connecting disc 2, the middle joint 3, the piston sleeve 4 and the connector 7 are fixedly installed together in sequence from top to bottom, and the outer side of the lower part of the connector 7 is connected with the inner side of the upper part of the setting cylinder 8 through a shearing pin 9; the driving device 1 is fixedly arranged on the connecting disc 2, an upper sleeve body 10 is integrally fixed on the inner side of the middle part of the piston sleeve 4, a cup-shaped piston body 11 with an upward opening is sleeved in a lower cavity of the upper sleeve body 10, threads are arranged on the inner side of the cup-shaped piston body 11, the lower end of the transmission connecting rod 5 and the cup-shaped piston body 11 are installed together through threads, a distance is reserved between the lower end of the transmission connecting rod 5 and the bottom end face of the inner cavity of the cup-shaped piston body 11, the upper end of the transmission connecting rod 5 penetrates through the middle joint 3 and is fixedly installed with the power output end of the driving device 1 through the coupler 12, a radial liquid inlet hole 13 communicated with the inner cavity of the upper sleeve body 10 is arranged on the piston sleeve 4 corresponding to the middle part of the cup-shaped piston body 11, a lower sleeve body 14 is integrally fixed on the inner side of the middle part of the seat sealing cylinder 8, a seat sealing piston 15 is sleeved on the seat sealing cylinder 8 above the lower sleeve body 14, the lower sleeve 14 and the seat sealing piston 15 are sleeved on the center rod 6, the upper end of the center rod 6 is fixedly connected with the connector 7, a central hole 16 communicated with the upper part of the connector 7 and the center rod 6, a radial liquid outlet hole 17 is arranged on the center rod 6 communicated with the center rod 6. Therefore, the purpose of setting and releasing the bridge plug at a preset position is realized by matching the driving device, the connecting disc, the middle joint, the piston sleeve, the transmission connecting rod, the central rod, the connector and the setting cylinder with the existing control device, the section hoop positioner and the bridge plug, and the bridge plug has the characteristics of safety, reliability, short setting time and convenient extraction and reuse, is convenient to operate, improves the working efficiency and meets the requirements of site safety production and quality; after the underground bridge plug is set, the underground bridge plug setting device is easily lifted to the ground, a novel special withdrawing tool for an underground electric control power switch is used for resetting the setting cylinder 8 and the cup-shaped piston body 11 to a working state, and the next operation can be carried out without assembling a disassembling tool; the central bore 16 is blind. When the device is used in combination with the existing control device, the section hoop positioner and the bridge plug, the requirement on field operators is low, the operators do not need to carry out special operation on duty training, the bridge plug setting and releasing construction operation can be carried out only by observing instrument data, the operation process time is controlled to be 30-90 seconds, and a micro pump in the existing electric hydraulic bridge plug setting device is replaced, so that the construction safety and the construction success rate are greatly improved, and the releasing time is greatly shortened.
The novel underground electric control power switch can be further optimized or/and improved according to actual requirements:
according to requirements, the driving device 1 is a motor; or/and a cylinder 18 is fixedly arranged on the connecting disc 2, and the driving device 1 is positioned in the cylinder 18. Thus, in use, the downhole barrel 18 of the present invention facilitates protection of the drive unit 1 from well fluids entering the drive unit 1.
As shown in fig. 1, four mounting grooves are sequentially formed on the inner side of the upper portion of the intermediate joint 3 from top to bottom, a first thrust bearing 19, a thrust plate 20, a second thrust bearing 21 and a first deep groove rolling bearing 22 are sequentially mounted in the four mounting grooves on the upper portion of the intermediate joint 3 from top to bottom, and the first thrust bearing 19, the thrust plate 20, the second thrust bearing 21 and the first deep groove rolling bearing 22 are respectively sleeved on the transmission connecting rod 5. In this way, the first thrust bearing 19, the thrust disk 20, the second thrust bearing 21 and the first deep groove rolling bearing 22 facilitate the rotation of the drive link 5 and also facilitate the support and the limitation of the drive link 5.
As shown in fig. 1, two mounting grooves are sequentially formed in the inner side of the lower portion of the intermediate joint 3 from top to bottom, a second deep groove rolling bearing 23 and a third thrust bearing 24 are sequentially mounted in the two mounting grooves in the lower portion of the intermediate joint 3 from top to bottom, and the second deep groove rolling bearing 23 and the third thrust bearing 24 are respectively sleeved on the transmission connecting rod 5. In this way, the second deep groove rolling bearing 23 and the third thrust bearing 24 facilitate the rotation of the transmission connecting rod 5 and also facilitate the support and the limitation of the transmission connecting rod 5.
As shown in fig. 1, the connecting plate 2 is seated on the intermediate joint 3 and fixedly mounted together by at least two bolts 25, the lower outer side of the intermediate joint 3 and the upper inner side of the piston bush 4 are fixedly mounted together by screw threads, and the lower inner side of the piston bush 4 and the upper outer side of the connecting head 7 are fixedly mounted together by screw threads. Thus, the fixing and mounting together through the screw thread are convenient for mounting and dismounting.
As shown in fig. 1, a packing 26 is installed between the upper portion of the cup-shaped piston body 11 and the upper case 10, a packing 26 is installed between the lower portion of the cup-shaped piston body 11 and the upper case 10, a packing 26 is installed between the setting piston 15 and the center rod 6, and a packing 26 is installed between the lower case 14 and the center rod 6. In this way, the sealing ring 26 provides a better sealing effect.
The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
The application process of the preferred embodiment of the invention is as follows: when in use, the barrel 18 of the invention is fixedly arranged with the section hoop positioner of the prior device, and the lower end of the center rod 6 of the invention is connected with the bridge plug of the prior device through a bridge plug release ring and a bridge plug pull rod; then the invention, section hoop locator and bridge plug are sent to the preset position in the well through the cable, section hoop locator and drive unit 1 are connected with the control device on the ground through the cable, the position signal of section hoop locator is sensed to the control device on the ground through the cable, the control device on the ground locates the underground work execution part, then the control device on the ground transmits the control signal of drive unit to the drive unit 1 in the well through the cable, the drive unit 1 receives the control signal to rotate, and transmits to the transmission connecting rod 5 through the coupling 12, because the transmission connecting rod 5 is in threaded connection with the cup-shaped piston body 11, the cup-shaped piston body 11 moves upwards along the upper sleeve body 10, the cup-shaped piston body 11 moves upwards to the position above the radial liquid inlet hole 13, the well liquid enters into the upper sleeve body 10 through the radial liquid inlet hole 13, the entered liquid enters between the lower sleeve body 14 and the setting piston 15 through the radial liquid outlet hole 17 along the connecting head 7 and the upper central rod 6, the lower sleeve body 14 and the setting piston 15, the lower sleeve body 14 and the lower sleeve 8 push the lower sleeve sealing piston 15 to move relatively, the sealing plug 8 is pushed, the sealing plug 8 is fixed to the sealing sleeve 8, the sealing sleeve 8 is cut off, the sealing plug, the sealing sleeve 8, the sealing plug is further.
Claims (12)
1. A novel underground electric control power switch is characterized by comprising a driving device, a connecting disc, a middle joint, a piston sleeve, a transmission connecting rod, a central rod, a connector and a setting cylinder; the connecting disc, the middle joint, the piston sleeve and the connector are sequentially and fixedly arranged together from top to bottom, and the outer side of the lower part of the connector is connected with the inner side of the upper part of the setting cylinder through a shearing pin; the driving device is fixedly arranged on the connecting disc, an upper sleeve body is integrally fixed on the inner side of the middle part of the piston sleeve, a cup-shaped piston body with an upward opening is sleeved in a lower cavity of the upper sleeve body, threads are arranged on the inner side of the cup-shaped piston body, the lower end of a transmission connecting rod and the cup-shaped piston body are installed together through the threads, a distance is reserved between the lower end of the transmission connecting rod and the bottom end face of the inner cavity of the cup-shaped piston body, the upper end of the transmission connecting rod penetrates through a middle joint and is fixedly installed with a power output end of the driving device through a coupler, a radial liquid inlet hole communicated with the inner cavity of the upper sleeve body is formed in the piston sleeve corresponding to the middle position of the cup-shaped piston body, a lower sleeve body is integrally fixed on the inner side of the middle part of the sitting and sealing cylinder, a sitting and sealing piston is sleeved on a center rod, the upper end of the center rod and the connector are fixedly connected together, center holes communicated with the upper part and the middle part of the center rod are formed in the connector, a radial liquid outlet hole communicated with the center rod is formed in the center rod above the lower sleeve body, and the liquid outlet hole is located above the radial liquid outlet hole.
2. The novel downhole electrically-controlled power switch according to claim 1, wherein the driving device is a motor; or/and a cylinder body is fixedly arranged on the connecting disc, and the driving device is positioned in the cylinder body.
3. The novel downhole electric-controlled power switch according to claim 1 or 2, wherein the inner side of the upper portion of the intermediate joint is sequentially provided with four mounting grooves from top to bottom, the four mounting grooves on the upper portion of the intermediate joint are respectively and sequentially provided with a first thrust bearing, a thrust plate, a second thrust bearing and a first deep groove rolling bearing from top to bottom, and the first thrust bearing, the thrust plate, the second thrust bearing and the first deep groove rolling bearing are respectively sleeved on the transmission connecting rod.
4. The novel downhole electric-controlled power switch according to claim 1 or 2, wherein the inner side of the lower portion of the intermediate joint is sequentially provided with two mounting grooves from top to bottom, the two mounting grooves at the lower portion of the intermediate joint are sequentially provided with a second deep groove rolling bearing and a third thrust bearing from top to bottom, and the second deep groove rolling bearing and the third thrust bearing are respectively sleeved on the transmission connecting rod.
5. The novel downhole electric control power switch as claimed in claim 3, wherein the inner side of the lower portion of the intermediate joint is sequentially provided with two mounting grooves from top to bottom, the two mounting grooves of the lower portion of the intermediate joint are sequentially provided with the second deep groove rolling bearing and the third thrust bearing from top to bottom, and the second deep groove rolling bearing and the third thrust bearing are respectively sleeved on the transmission connecting rod.
6. A novel underground electric control power switch according to claim 1, 2 or 5, characterized in that the connection disc seat is on the middle joint and is fixedly mounted together by at least two bolts, the lower outer side of the middle joint and the upper inner side of the piston sleeve are fixedly mounted together by screw threads, and the lower inner side of the piston sleeve and the upper outer side of the connection joint are fixedly mounted together by screw threads.
7. A novel underground electric-controlled power switch according to claim 3, wherein the connection disc is seated on the intermediate joint and is fixedly mounted together through at least two bolts, the lower outer side of the intermediate joint and the upper inner side of the piston sleeve are fixedly mounted together through threads, and the lower inner side of the piston sleeve and the upper outer side of the connection joint are fixedly mounted together through threads.
8. A novel underground electric-controlled power switch according to claim 4, characterized in that the connection disc seat is arranged on the middle joint and fixedly mounted together through at least two bolts, the lower outer side of the middle joint and the upper inner side of the piston sleeve are fixedly mounted together through threads, and the lower inner side of the piston sleeve and the upper outer side of the connection joint are fixedly mounted together through threads.
9. A novel downhole electrically-controlled power switch according to claim 1, 2, 5, 7 or 8, characterized in that a seal ring is mounted between the upper part of the cup-shaped piston body and the upper casing body, a seal ring is mounted between the lower part of the cup-shaped piston body and the upper casing body, a seal ring is mounted between the setting piston and the center rod, and a seal ring is mounted between the lower casing body and the center rod.
10. A novel downhole electrically-controlled power switch according to claim 3, wherein a seal ring is installed between the upper portion of the cup-shaped piston body and the upper cover body, a seal ring is installed between the lower portion of the cup-shaped piston body and the upper cover body, a seal ring is installed between the setting piston and the center rod, and a seal ring is installed between the lower cover body and the center rod.
11. A novel downhole electrically-controlled power switch according to claim 4, wherein a seal ring is installed between the upper portion of the cup-shaped piston body and the upper cover body, a seal ring is installed between the lower portion of the cup-shaped piston body and the upper cover body, a seal ring is installed between the setting piston and the center rod, and a seal ring is installed between the lower cover body and the center rod.
12. A novel downhole electrically-controlled power switch according to claim 6, wherein a seal ring is installed between the upper portion of the cup-shaped piston body and the upper cover body, a seal ring is installed between the lower portion of the cup-shaped piston body and the upper cover body, a seal ring is installed between the setting piston and the center rod, and a seal ring is installed between the lower cover body and the center rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148218.7A CN106761547B (en) | 2016-12-13 | 2016-12-13 | Novel underground electric control power switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148218.7A CN106761547B (en) | 2016-12-13 | 2016-12-13 | Novel underground electric control power switch |
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| CN106761547A CN106761547A (en) | 2017-05-31 |
| CN106761547B true CN106761547B (en) | 2023-04-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107701139B (en) * | 2017-10-24 | 2019-07-19 | 西华大学 | A salvage tool in a wire rope tube |
| CN108131108B (en) * | 2018-01-31 | 2023-06-30 | 中国石油天然气股份有限公司 | Detonator starting hydraulic setting tool and application thereof |
| CN109403895B (en) * | 2018-11-26 | 2023-05-05 | 中国石油大学(北京) | Inner starting tool of catheter bearing capacity strengthening device and using method thereof |
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| CN204457537U (en) * | 2015-02-28 | 2015-07-08 | 荆州市赛瑞能源技术有限公司 | A kind of hydraulic releasing setting tool |
| CN105696965A (en) * | 2016-04-20 | 2016-06-22 | 中国石油集团西部钻探工程有限公司 | Electric packer |
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