CN113605860B - Remote control toe end sliding sleeve opening system based on pressure pulse signals - Google Patents
Remote control toe end sliding sleeve opening system based on pressure pulse signals Download PDFInfo
- Publication number
- CN113605860B CN113605860B CN202111059614.3A CN202111059614A CN113605860B CN 113605860 B CN113605860 B CN 113605860B CN 202111059614 A CN202111059614 A CN 202111059614A CN 113605860 B CN113605860 B CN 113605860B
- Authority
- CN
- China
- Prior art keywords
- pressure
- sliding sleeve
- pressure transmitter
- microprocessor
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001276 controlling effect Effects 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 15
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 229910052594 sapphire Inorganic materials 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 9
- 238000004880 explosion Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000000977 initiatory effect Effects 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003079 shale oil Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/16—Control means therefor being outside 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/066—Valve arrangements for boreholes or wells in wells electrically actuated
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/06—Sleeve valves
Landscapes
- 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)
- Control Of Fluid Pressure (AREA)
Abstract
The invention relates to a remote control toe end sliding sleeve opening system based on a pressure pulse signal, which comprises a pressure transmitter, a high-temperature high-pressure electromagnetic valve, a microprocessor, an NPN triode and a high-temperature battery pack, wherein the two NPN triodes are controlled by an STM32 singlechip, a timer is arranged in the NPN triode, and the triggering time of the pressure transmitter and the high-temperature high-pressure electromagnetic valve is regulated. The NPN triode is used for controlling the time of the pressure transmitter for detecting the fluid pressure in a timing mode, and the high-temperature high-pressure electromagnetic valve is opened after receiving the pressure pulse signal on the well, so that the sliding sleeve is opened. The opening time of the toe end sliding sleeve is controlled, and meanwhile, the toe end sliding sleeve is not influenced by pressure in the pipe. The problems that the existing toe end sliding sleeve explosion valve cannot realize automatic control and is low in delay opening success rate are solved, the automatic control of the opening function of the sliding sleeve on the well is realized, the pressure test time and times of the shaft are not limited, and the operability and compatibility of the system are improved.
Description
Technical Field
The invention belongs to the technical field of oil and gas exploitation, and particularly relates to a remote control toe end sliding sleeve opening system based on a pressure pulse signal.
Background
At present, the key technology for developing shale oil gas and other compact oil gas resources is a bridge plug multistage fracturing technology. However, this technique relies primarily on coiled tubing perforating the first zone, and for horizontal wells with longer horizontal sections, abandons the first zone of the pay zone because coiled tubing cannot be run downhole. The method wastes time and labor and increases the operation cost and risk, and the defects of the bridge plug multistage fracturing technology are improved along with the appearance and application of the toe end sliding sleeve. The sleeve toe end sliding sleeve enters a well along with the production sleeve and is well-fixed to serve as a first-stage fracturing sliding sleeve. The sliding sleeve is matched with other sectional modification tools, is not limited by the working length of the coiled tubing, and can prolong the fracturing depth of the horizontal section.
Patent CN205189848U has announced well cementation fracturing sliding sleeve of rupture disc toe end, and the piston of opening of this sliding sleeve is by pressure drive, installs the rupture disc in the pressure transmission route, according to the well condition, designs corresponding rupture disc rupture value, guarantees to get through the rupture disc in the pressure range of design, and pressure drive sliding sleeve piston motion to reach the mesh of opening the sliding sleeve.
However, in field application, the opening success rate of the sliding sleeve at the toe end of the sleeve of the pressure-based shearing and pinning or absolute pressure crushing explosion valve is extremely low. The reason is that the pressure testing needs to be carried out on the shaft and the well mouth before the oil field exploitation, the pressure is qualified in the pressure testing of the shaft and the well mouth, and the toe end sliding sleeve is not opened, so that the opening pressure of the toe end sliding sleeve is designed to be higher than the pressure testing value of the shaft and the well mouth, and when the toe end sliding sleeve is opened, the opening pressure of the toe end sliding sleeve exceeds the standard pressure testing pressure of the pressure testing operation of the shaft and the well mouth. In addition, the sleeve toe end sliding sleeve of the blasting valve structure can not be normally opened when the blasting valve is buried by cement or the structure is damaged.
Patent CN207048726U discloses an electrical control system for a toe end intelligent sliding sleeve, which comprises a pressure sensor, a sensor signal transmission circuit, a microprocessor, a detonation circuit, a detonating cord and a shaped charge, which are connected in sequence, and the pressure change in the sleeve is detected by the pressure sensor, so that the sliding sleeve is opened by detonating the shaped charge. The technology uses the pressure sensor to measure the pressure value, and the microprocessor receives the pressure value signal to control the initiation circuit to open the sliding sleeve, so that the problem that the pressure of the driving sliding sleeve conflicts with the pressure testing pressure of a shaft and a wellhead is solved. However, the pressure sensor and the initiation circuit consume a large amount of electric energy when operating, and a large-sized battery is not allowed to be placed in the space in the well bore, so that the operation time of the whole system is limited, and the instability of the initiation circuit influences the opening accuracy of the sliding sleeve.
Disclosure of Invention
The invention aims to provide a remote control toe end sliding sleeve opening system based on a pressure pulse signal, which can control the opening of a sliding sleeve in the ground in an unlimited time mode through pressure waves and can automatically set the pressure testing times, so that the reliability, compatibility and operability of the sliding sleeve are improved.
The technical scheme adopted by the invention for solving the technical problem is as follows: a remote control toe end sliding sleeve opening system based on a pressure pulse signal comprises a pressure transmitter, a high-temperature high-pressure electromagnetic valve, a microprocessor, an NPN triode and a high-temperature battery pack, wherein the high-temperature high-pressure electromagnetic valve, the microprocessor, the NPN triode and the high-temperature battery pack are installed in a groove body on a sliding sleeve shell, a T-shaped pipeline is led out from a main sliding sleeve pipeline, one side of the T-shaped pipeline is connected with the pressure transmitter, the other side of the T-shaped pipeline is connected with the high-temperature high-pressure electromagnetic valve, an inner piston is arranged behind the high-temperature high-pressure electromagnetic valve, the sensing end of the pressure transmitter is in contact with liquid in a shaft, the lead end of the pressure transmitter is connected with the microprocessor, the microprocessor is connected with the two NPN triodes, one of the NPN triodes is connected with the high-temperature high-pressure electromagnetic valve and used for controlling the opening of the high-temperature high-pressure electromagnetic valve to control the liquid circulation, the other NPN triode is connected with the pressure transmitter, the high-temperature battery pack is connected with the microprocessor and used for supplying power to the pressure transmitter and the high-temperature electromagnetic valve.
Furthermore, the microprocessor adopts an STM32L4 series single chip microcomputer, the STM32L4 series single chip microcomputer and the NPN triodes are integrally welded by adopting a tin soldering technology, and an I/O port of the STM32L4 series single chip microcomputer is connected with base electrodes of the two NPN triodes to control the conduction of the emitting electrodes and the collecting electrodes.
Further, a timer is arranged in the STM32L4 series single chip microcomputer and used for setting the triggering time of the pressure transmitter.
Furthermore, the pressure transmitter is provided with a thread and a sealing ring for sealing and isolating.
Further, the pressure transmitter adopts an HM28 sapphire pressure transmitter.
Furthermore, the two groups of high-temperature battery packs surround the sliding sleeve shell in an annular mode, the voltage of the high-temperature battery pack for supplying power to the microprocessor is 3.6V, and the voltage of the high-temperature battery pack for supplying power to the pressure transmitter and the high-temperature high-pressure electromagnetic valve is 24V.
The remote control toe end sliding sleeve opening system based on the pressure pulse signal comprises the following working steps:
1) Starting the microprocessor to count down;
2) After the specified time is reached, the microprocessor sends out a control instruction, and the base electrode of an NPN triode connected with the pressure transmitter is electrified;
3) The collector and the emitter of the NPN triode connected with the pressure transmitter are conducted, and the pressure transmitter starts to work;
4) Transmitting a specific pressure pulse signal underground from the ground;
5) The pressure transmitter transmits a real-time signal to the microprocessor, the microprocessor decodes a digital signal transmitted by the pressure transmitter, obtains a control command according to a compiling program, and the base electrode of an NPN triode connected with the high-temperature high-pressure electromagnetic valve is electrified;
6) The collector and the emitter of the NPN triode connected with the high-temperature high-pressure electromagnetic valve are conducted, the high-temperature high-pressure electromagnetic valve is opened, and liquid in the pipe flows;
7) The liquid in the tube pushes the inner piston to move, and the toe end sliding sleeve is opened.
The invention has the following beneficial effects:
(1) The invention solves the problems that the existing toe end sliding sleeve explosion valve can not realize automatic control and has low success rate of delayed opening, realizes the automatic control of the opening function of the sliding sleeve on the well, has no limit on the pressure test time and times of the shaft, and improves the operability and compatibility of the system.
(2) According to the invention, the STM32 single chip microcomputer controls two NPN triodes, a timer is arranged in the STM32 single chip microcomputer, and the triggering time of the pressure transmitter and the high-temperature high-pressure electromagnetic valve is regulated. And the NPN triode is used for controlling the time of the pressure transmitter for detecting the fluid pressure in a timing manner, and the high-temperature and high-pressure electromagnetic valve is opened after receiving the aboveground pressure pulse signal, so that the sliding sleeve is opened. The mode has solved the too big problem of electric quantity consumption for other automatically controlled sliding sleeves, has realized the control to toe end sliding sleeve opening time, does not receive intraductal pressure influence simultaneously.
Drawings
FIG. 1 is a schematic view of the control structure of the remote control toe end sliding sleeve opening system of the present invention.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the scope of the present invention is not limited to these examples. All changes, modifications and equivalents that do not depart from the spirit of the invention are intended to be included within the scope thereof.
The utility model provides a remote control toe end sliding sleeve system of opening based on pressure pulse signal, includes pressure transmitter, high temperature high pressure solenoid valve, microprocessor, NPN triode, high temperature group battery, in high temperature high pressure solenoid valve, microprocessor, NPN triode and the high temperature group battery was installed the cell body on the sliding sleeve shell, drawn forth a T type pipeline from the sliding sleeve trunk line, one side connection pressure transmitter, the high temperature high pressure solenoid valve is connected to the opposite side, and the rear of high temperature high pressure solenoid valve is equipped with the internal piston.
As shown in fig. 1, an induction end of the pressure transmitter contacts with liquid in the shaft, a lead end of the pressure transmitter is connected with the microprocessor, the microprocessor is connected with two NPN triodes, one NPN triode is connected with the high-temperature high-pressure solenoid valve and used for controlling the opening of the high-temperature high-pressure solenoid valve and further controlling the circulation of the liquid, the inner piston can be pushed to move after the circulation of the liquid, the other NPN triode is connected with the pressure transmitter, two groups of high-temperature battery packs are provided, one group of high-temperature battery packs is connected with the microprocessor and used for supplying power to the microprocessor, and the other group of high-temperature battery packs are connected with the two NPN triodes and used for supplying power to the pressure transmitter and the high-temperature high-pressure solenoid valve.
The microprocessor adopts STM32L4 series single-chip microcomputer, STM32L4 series single-chip microcomputer and NPN triode adopt tin soldering technique integrated welding, the base electrode of two NPN triodes is connected to the IO mouth of STM32L4 series single-chip microcomputer, controls the conduction of projecting pole and collecting electrode.
The remote control toe end sliding sleeve opening system based on the pressure pulse signal comprises a transmitter control circuit and a solenoid valve control circuit.
The transmitter control circuit takes an STM32L4 series single chip microcomputer as a core, a pressure transmitter as a control object and an NPN triode connected with the pressure transmitter as an execution element. A timer is arranged in the STM32L4 series single-chip microcomputer, and the triggering time of the pressure transmitter is specified. After the countdown in the timer is zero, the STM32 triggers the transmitter control circuit, and the NPN triode is used for controlling the power-on of the pressure transmitter.
The electromagnetic valve control circuit takes an STM32L4 series single chip microcomputer as a core, a high-temperature high-pressure electromagnetic valve as a control object, and an NPN triode connected with the high-temperature high-pressure electromagnetic valve as an execution element. The pressure transmitter detects the pressure value in the pipeline in real time and converts the pressure value into a digital signal through the AD module to be input into the STM32L4 series single chip microcomputer. After receiving the pressure pulse signal, the STM32L4 series single chip microcomputer triggers the electromagnetic valve control circuit, the NPN triode is used for controlling the high-temperature and high-pressure electromagnetic valve to be opened, liquid in the pipe flows, and then the toe end sliding sleeve can be opened.
The pressure transmitter adopts an HM28 sapphire pressure transmitter, and is provided with a thread and a sealing ring for sealing and isolating.
Two groups of high-temperature battery packs surround the sliding sleeve shell in an annular form, the voltage of the high-temperature battery pack for supplying power to the microprocessor is 3.6V, and the voltage of the high-temperature battery pack for supplying power to the pressure transmitter and the high-temperature high-pressure electromagnetic valve is 24V.
The remote control toe end sliding sleeve opening system based on the pressure pulse signal comprises the following working steps:
1) Starting the microprocessor to count down;
2) After the specified time is reached, the microprocessor sends out a control instruction, and the base electrode of an NPN triode connected with the pressure transmitter is electrified;
3) The collector and the emitter of the NPN triode connected with the pressure transmitter are conducted, and the pressure transmitter starts to work;
4) Transmitting a specific pressure pulse signal underground from the ground;
5) The pressure transmitter transmits a real-time signal to the microprocessor, the microprocessor decodes a digital signal transmitted by the pressure transmitter, obtains a control command according to a compiling program, and the base electrode of an NPN triode connected with the high-temperature high-pressure electromagnetic valve is electrified;
6) The collector and the emitter of the NPN triode connected with the high-temperature high-pressure electromagnetic valve are conducted, the high-temperature high-pressure electromagnetic valve is opened, and liquid in the pipe flows;
7) The liquid in the tube pushes the inner piston to move, and the toe end sliding sleeve is opened.
The present invention is not limited to the above embodiments, and any structural changes made by the teaching of the present invention can be made within the scope of the present invention, and all technical solutions similar or identical to the present invention are within the scope of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (7)
1. The high-temperature high-pressure electromagnetic valve, the microprocessor, the NPN triode and the high-temperature battery pack are installed in a groove body on a sliding sleeve shell, a T-shaped pipeline is led out from a main pipeline of the sliding sleeve, one side of the T-shaped pipeline is connected with the pressure transmitter, the other side of the T-shaped pipeline is connected with the high-temperature high-pressure electromagnetic valve, an inner piston is arranged behind the high-temperature high-pressure electromagnetic valve, the sensing end of the pressure transmitter is in contact with liquid in a shaft, the lead end of the pressure transmitter is connected with the microprocessor, the microprocessor is connected with the two NPN triodes, the NPN triode is connected with the high-temperature high-pressure electromagnetic valve and used for controlling the opening of the high-temperature high-pressure electromagnetic valve to further control liquid circulation, the inner piston can be pushed to move after the liquid circulation, the other triode is connected with the pressure transmitter, the high-temperature battery packs are provided with two groups, one group of high-temperature battery packs is connected with the microprocessor and used for supplying power to the microprocessor, and the other group of high-temperature battery packs are connected with the two NPN triodes and used for supplying power to the pressure transmitter and the high-temperature electromagnetic valve.
2. The remote control toe end sliding sleeve opening system based on the pressure pulse signals as claimed in claim 1, wherein the microprocessor adopts an STM32L4 series single chip microcomputer, the STM32L4 series single chip microcomputer and NPN triodes are integrally welded by adopting a soldering technology, and an I/O port of the STM32L4 series single chip microcomputer is connected with base electrodes of the two NPN triodes to control conduction of an emitting electrode and a collecting electrode.
3. The remote control toe end sliding sleeve opening system based on the pressure pulse signals as claimed in claim 2, wherein a timer is arranged inside the STM32L4 series single chip microcomputer and used for regulating the triggering time of the pressure transmitter.
4. The pressure pulse signal based remote control toe end sliding sleeve opening system of claim 1, wherein the pressure transmitter is provided with threads and a sealing ring for sealing isolation.
5. The pressure pulse signal based remote control toe sleeve opening system of claim 1, wherein the pressure transmitter is an HM28 sapphire pressure transmitter.
6. The pressure pulse signal based remote control toe end sliding sleeve opening system of claim 1, wherein said two sets of high temperature battery packs are annularly wound on the sliding sleeve housing, the voltage of the high temperature battery pack supplying power to the microprocessor is 3.6V, and the voltage of the high temperature battery pack supplying power to the pressure transmitter and the high temperature high pressure solenoid valve is 24V.
7. The pressure pulse signal based remote control toe end sliding sleeve opening system of claim 1, wherein the working steps are as follows:
1) Starting the microprocessor to count down;
2) After the specified time is reached, the microprocessor sends out a control instruction, and the base electrode of an NPN triode connected with the pressure transmitter is electrified;
3) The collector and the emitter of the NPN triode connected with the pressure transmitter are conducted, and the pressure transmitter starts to work;
4) Transmitting a specific pressure pulse signal underground from the ground;
5) The pressure transmitter transmits a real-time signal to the microprocessor, the microprocessor decodes a digital signal transmitted by the pressure transmitter, obtains a control command according to a compiling program, and the base electrode of an NPN triode connected with the high-temperature high-pressure electromagnetic valve is electrified;
6) The collector and the emitter of the NPN triode connected with the high-temperature high-pressure electromagnetic valve are conducted, the high-temperature high-pressure electromagnetic valve is opened, and liquid in the tube circulates;
7) The liquid in the tube pushes the inner piston to move, and the toe end sliding sleeve is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111059614.3A CN113605860B (en) | 2021-09-10 | 2021-09-10 | Remote control toe end sliding sleeve opening system based on pressure pulse signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111059614.3A CN113605860B (en) | 2021-09-10 | 2021-09-10 | Remote control toe end sliding sleeve opening system based on pressure pulse signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113605860A CN113605860A (en) | 2021-11-05 |
| CN113605860B true CN113605860B (en) | 2023-02-28 |
Family
ID=78342879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111059614.3A Active CN113605860B (en) | 2021-09-10 | 2021-09-10 | Remote control toe end sliding sleeve opening system based on pressure pulse signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113605860B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205189848U (en) * | 2015-06-10 | 2016-04-27 | 北京日升恒诚能源技术开发有限公司 | Discodactylous that breaks end well cementation fracturing sliding sleeve |
| CN107246250A (en) * | 2017-08-07 | 2017-10-13 | 成都大学 | A kind of intelligent sliding sleeve of sleeve pipe toe-end controlled based on liquid pulse signal |
| CN207048726U (en) * | 2017-08-07 | 2018-02-27 | 成都大学 | The electric control system of sleeve pipe toe-end intelligence sliding sleeve |
| CN110374551A (en) * | 2018-12-28 | 2019-10-25 | 成都众智诚成石油科技有限公司 | A kind of underground hydraulic-control starting sliding sleeve control system and control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11473401B2 (en) * | 2020-02-05 | 2022-10-18 | University Of Electronic Science And Technology Of China | Method for controlling toe-end sliding sleeve of horizontal well based on efficient decoding communication |
-
2021
- 2021-09-10 CN CN202111059614.3A patent/CN113605860B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205189848U (en) * | 2015-06-10 | 2016-04-27 | 北京日升恒诚能源技术开发有限公司 | Discodactylous that breaks end well cementation fracturing sliding sleeve |
| CN107246250A (en) * | 2017-08-07 | 2017-10-13 | 成都大学 | A kind of intelligent sliding sleeve of sleeve pipe toe-end controlled based on liquid pulse signal |
| CN207048726U (en) * | 2017-08-07 | 2018-02-27 | 成都大学 | The electric control system of sleeve pipe toe-end intelligence sliding sleeve |
| CN110374551A (en) * | 2018-12-28 | 2019-10-25 | 成都众智诚成石油科技有限公司 | A kind of underground hydraulic-control starting sliding sleeve control system and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113605860A (en) | 2021-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105003226A (en) | Electric-hydraulic dual-control energy storage type fracturing well completion switch and switch control method | |
| CN104088604B (en) | Ground control underground sliding sleeve for staged fracturing and acidizing reconstruction of horizontal well | |
| CN109296349B (en) | Piston type delay opening toe end sliding sleeve | |
| CN104088603A (en) | Method for controlling underground sliding sleeve by ground pressure wave | |
| CN109296348B (en) | Toe end sliding sleeve capable of being opened in time delay mode | |
| CN210564483U (en) | Electronic delay detonating device for oil-gas well | |
| CN109882115B (en) | Constant-pressure grouting device | |
| CN201902228U (en) | Automatic regulation and control early warning system for underground gas extraction pipeline concentration | |
| CN110500066A (en) | A kind of underground throttle device based on wireless control | |
| CN113605860B (en) | Remote control toe end sliding sleeve opening system based on pressure pulse signals | |
| CN204419138U (en) | Horizontal well cable transmission lateral ring guide clustering directional perforation mechanism | |
| CN103452496B (en) | Integral type of adopting thick oil thermal extraction note automatically switches and produces joint | |
| CN108317922B (en) | Graded perforation exploder circuit based on cable coding and control method | |
| CN107605464A (en) | Gas well switch board control system and its control method | |
| CN110469282A (en) | A kind of electronic setting tool | |
| CN105201440A (en) | Remotely, wirelessly and intelligently controlled combined sealing dual-tube gas injection wellhead system | |
| CN206071551U (en) | Preset cable type underground integrated measurement and control production allocator | |
| CN111502655A (en) | Oil well sampler | |
| CN216277833U (en) | Electric control device for underground injection and production | |
| CN102817597A (en) | Three-layer insertion pipe mechanical water exploration and plugging method and water exploration and plugging pipe column | |
| CN107762481A (en) | A kind of oil well multi-parameters sampling and casing gas constant-pressure retracting device | |
| CN206409216U (en) | A kind of down-hole casing perforating system | |
| CN214576900U (en) | Smart toe end sliding sleeve | |
| CN202954796U (en) | Pressure-proof explosion transfer device for oil-gas well | |
| CN2448924Y (en) | Downhole autoamtic control liquid sampling valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220222 Address after: 266525 No.777, Jialingjiang East Road, Huangdao District, Qingdao City, Shandong Province Applicant after: Qingdao University of Technology Applicant after: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. Address before: 266525 No.777, Jialingjiang East Road, Huangdao District, Qingdao City, Shandong Province Applicant before: Qingdao University of Technology |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |