CN212642664U - Miniature underground liquid station system for opening underground safety valve - Google Patents
Miniature underground liquid station system for opening underground safety valve Download PDFInfo
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- CN212642664U CN212642664U CN202020917635.9U CN202020917635U CN212642664U CN 212642664 U CN212642664 U CN 212642664U CN 202020917635 U CN202020917635 U CN 202020917635U CN 212642664 U CN212642664 U CN 212642664U
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Abstract
The utility model relates to a miniature underground liquid station system for opening an underground safety valve, belonging to the technical field of underground safety production; the system comprises an aboveground electrical control system, an underground electrical control system and an underground micro liquid station; the underground electric control system is connected with the safety valve through the underground micro liquid station. The utility model discloses an electrical system control underground liquid station opens downhole safety valve in pit again on the well, has greatly improved the problem of traditional relief valve control delay, and has had more real-time, accurate control to downhole safety valve operating condition, is favorable to eliminating the downhole potential safety hazard, avoids the workover, is favorable to the safety in pit to produce.
Description
Technical Field
The utility model relates to a miniature liquid station system in pit for opening relief valve in pit belongs to safety in pit and produces technical field.
Background
An underground Safety Valve (SSSV) (SubSurface Safety Valve) is an underground tool which is arranged in an oil and gas well and can be closed emergently to prevent blowout and ensure the Safety of oil and gas well facilities and production when abnormal conditions such as fire alarm, pipeline breakage, irresistible natural disasters (such as earthquake, ice condition, strong typhoon and the like) and the like occur in production facilities. The underground safety valve can close the oil circuit in emergency when the system is in abnormal condition, so as to prevent blowout, and is a key facility in the oil exploitation completion tool. Traditional subsurface safety valve is through opening and close of aboveground hydraulic system remote control relief valve, and traditional ground control subsurface safety valve's general principle does: the hydraulic pressure is added from the ground, the high-pressure liquid enters the piston cavity through the control pipeline to push the piston to move downwards, the spring is compressed, and the valve plate is jacked open to realize opening; the ground control pressure is kept, namely the opening state is kept; the ground control pressure is released, and the valve plate is reset under the action of the spring to realize closing. The traditional underground safety valve is opened and closed by remotely controlling the safety valve through an aboveground hydraulic system, and the control has certain time delay due to the fact that the oil way is long in transmission distance.
The intelligent composite continuous pipeline widely adopted in the oil well at present is an intelligent pipeline consisting of a non-metallic material multilayer composite base material, a communication wire, a heating wire and a cable which are embedded inside, and a single pipe is as long as several kilometers (without a joint in the middle), so that the well completion and the exploitation operation time can be greatly reduced, the oil extraction efficiency and the benefit can be improved, and the safety of an oil well system can be improved; the development of corresponding matched well completion tools is combined, and the whole set of petroleum system equipment can be upgraded and updated.
Disclosure of Invention
The utility model aims at solving traditional opening and closing through the downhole safety valve of aboveground hydraulic system remote control, the oil circuit is external to be connected one by one and ties up in oil pipe's outside, and every oil pipe all needs the guard shield to bind, and the operating efficiency is low, the damage risk of colliding with is high, and well completion workover is with high costs, and moreover because oil circuit transmission distance is far away, long distance hydraulic control has certain delay nature and has the inconvenient technical problem of maintenance.
In order to achieve the purpose of solving the problems, the technical scheme adopted by the utility model is to provide a ground control micro underground liquid station control system for opening and closing an underground safety valve, which comprises an aboveground electrical control system, an underground electrical control system and an underground micro liquid station; the underground electric control system is connected with the underground safety valve through the underground micro liquid station.
Preferably, the aboveground electrical control system comprises a computer, a Programmable Logic Controller (PLC) and a power carrier machine I; a first power carrier module is arranged in the first power carrier; and the computer is connected with the first power carrier module through the Programmable Logic Controller (PLC).
Preferably, the downhole electrical control system comprises a second power carrier, a remote data acquisition and transmission module and a relay; and a second power carrier module is arranged in the second power carrier, the second power carrier is connected with one end of the relay through a remote data acquisition and transmission module, and the other end of the relay is connected with the underground micro liquid station.
Preferably, a first power carrier module arranged on the aboveground electrical control system is connected with a second power carrier module arranged on the underground electrical control system through a power line.
Preferably, the underground micro liquid station comprises an oil tank, a motor, a micro plunger pump, an overflow valve, a normally closed first electromagnetic valve, a normally closed second electromagnetic valve, a check valve and a single-action hydraulic cylinder; the single-acting hydraulic cylinder is provided with an oil path inlet, and the oil tank is connected with the oil path inlet arranged on the single-acting hydraulic cylinder through a normally closed electromagnetic valve I; a micro plunger pump is arranged between the oil tank and the normally closed electromagnetic valve I and is connected with a motor; a check valve is arranged between the normally closed electromagnetic valve I and the oil way inlet of the single-action hydraulic cylinder; the oil tank is connected with an oil way inlet arranged on the single-action hydraulic cylinder through a normally closed electromagnetic valve II; an overflow valve is arranged between the oil tank and the normally closed electromagnetic valve I; the motor, the normally closed electromagnetic valve I and the normally closed electromagnetic valve II are connected with the relay; the single-acting hydraulic cylinder is connected with the safety valve.
Preferably, an oil way inlet of the single-acting hydraulic cylinder is provided with a pressure sensor, and the pressure sensor is connected with the underground remote data acquisition and transmission module.
Preferably, a filter is arranged between the oil tank and the micro plunger pump.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a downhole safety valve opening system opens downhole safety valve through the downhole liquid station of electrical system control in the pit again, has greatly improved the problem of traditional relief valve control delay, and has had more real-time, accurate control to downhole safety valve operating condition, to eliminating downhole potential safety hazard, avoids the workover to have great help.
Drawings
Fig. 1 is a schematic view of the overall control structure of a micro downhole fluid station system for opening a downhole safety valve according to the present invention;
FIG. 2 is a schematic diagram of the overall control structure of a micro down-hole liquid station system for opening a down-hole safety valve according to the present invention;
FIG. 3 is a schematic structural view of a downhole fluid station of a micro downhole fluid station system for opening a downhole safety valve according to the present invention;
FIG. 4 is a schematic structural diagram of a system component of a micro down-hole station for opening a down-hole safety valve according to the present invention;
reference numerals: 1. the system comprises a safety valve 2, an underground liquid station 3, an oil tank 4, a filter 5, a motor 6, a micro plunger pump 7, an overflow valve 8, a first normally closed electromagnetic valve 9, a second normally closed electromagnetic valve 10, a check valve 11, a single-action hydraulic cylinder 12, a pressure sensor 13, an aboveground electrical control system 14 and an underground electrical control system;
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:
as shown in fig. 1-4, the present invention provides a micro down-hole liquid station system for opening a down-hole safety valve, which comprises an up-hole electrical control system 13, a down-hole electrical control system 14 and a down-hole micro liquid station 2; the aboveground electrical control system 13 is connected with the underground electrical control system 14, and the underground electrical control system 14 is connected with the safety valve 1 through the underground micro liquid station 2. The aboveground electrical control system 13 comprises a computer, a programmable logic controller PLC and a power carrier machine I; a first power carrier module is arranged in the first power carrier; and the computer is connected with the first power carrier module through the Programmable Logic Controller (PLC). The downhole electrical control system 14 comprises a second power carrier machine, a remote data acquisition and transmission module (remote I/O) and a relay; and a second power carrier module is arranged in the second power carrier, the second power carrier is connected with one end of the relay through a remote data acquisition and transmission module, and the other end of the relay is connected with the underground micro liquid station 2. And a first power carrier module arranged on the aboveground electrical control system 13 is connected with a second power carrier module arranged on the underground electrical control system 14 through a power line. The underground micro liquid station 2 comprises an oil tank 3, a motor 5, a micro plunger pump 6, an overflow valve 7, a normally closed solenoid valve I8, a normally closed solenoid valve II 9, a check valve 10 and a single-action hydraulic cylinder 11; the single-acting hydraulic cylinder 11 is provided with an oil path inlet, and the oil tank 3 is connected with the oil path inlet arranged on the single-acting hydraulic cylinder 11 through a normally closed electromagnetic valve I8; a micro plunger pump 6 is arranged between the oil tank 3 and the normally closed electromagnetic valve I8, and the micro plunger pump 6 is connected with the motor 5; a check valve 10 is arranged between the normally closed electromagnetic valve I8 and the oil path inlet of the single-action hydraulic cylinder 11; the oil tank 3 is connected with an oil way inlet arranged on the single-action hydraulic cylinder 11 through a normally closed electromagnetic valve II 9; an overflow valve 7 is arranged between the oil tank 3 and the normally closed electromagnetic valve I8; the motor 5, the normally closed electromagnetic valve I8 and the normally closed electromagnetic valve II 9 are connected with the relay; the single-acting hydraulic cylinder 11 is connected to the safety valve 1. The single-acting hydraulic cylinder 11 is provided with an oil path inlet which is provided with a pressure sensor 12, and the pressure sensor 12 is connected with the underground remote data acquisition and transmission module. A filter 4 is arranged between the oil tank 3 and the micro plunger pump 6.
A working method of a miniature downhole fluid station system for opening a downhole safety valve comprises the following steps:
step 1: an instruction for opening the safety valve, which is made by the aboveground electrical control system, is transmitted by the aboveground computer through the programmable logic controller PLC and the power carrier machine I, and a signal is transmitted to the underground power carrier machine II through the power line and then transmitted to the motor through the remote data acquisition and transmission module and the relay;
step 2: the motor drives the miniature plunger pump to work, the highest output pressure is about 100Mpa, the normally closed electromagnetic valve is started, hydraulic oil flows into the single-action hydraulic cylinder, the piston rod is pushed to move until the valve clack of the safety valve is opened;
and step 3: when the valve clack of the safety valve is opened, the pressure sensor transmits the pressure value to the ground through the remote data acquisition and transmission module, an instruction is sent out from the ground to close the normally closed solenoid valve I, and an oil way leading to the single-acting hydraulic cylinder is subjected to pressure maintaining through the check valve, so that the valve clack is continuously in an opening state;
and 4, step 4: when the pressure sensor detects that the pressure is reduced, the motor and the miniature plunger pump work, and the normally closed electromagnetic valve is opened for pressure compensation; when the pressure is complemented to the opening pressure of the pressure sensor, the normally closed electromagnetic valve I is closed;
and 5: an instruction for closing the safety valve, which is made by an aboveground electrical control system, is transmitted by an aboveground computer through a Programmable Logic Controller (PLC) and a power line carrier machine I, a signal is transmitted to a downhole power line carrier machine II through a power line, and then transmitted to a normally closed electromagnetic valve I and a normally closed electromagnetic valve II through a remote data acquisition and transmission module and a relay, wherein the normally closed electromagnetic valve I is closed, the normally closed electromagnetic valve II is opened, an oil way is unloaded, and a valve clack of the safety valve is closed; when sudden power failure occurs, the normally closed electromagnetic valve I is closed after power failure, the normally closed electromagnetic valve II is opened under the power supply of the standby power supply, the oil way is unloaded, and the valve clack of the safety valve is closed.
The utility model belongs to the oil equipment field provides an underground safety valve opening system. Relates to the overall design of an underground safety valve operating system, the structural design of an underground liquid station and the design of an aboveground electrical control system. An operator on the well can control the opening and closing of the safety valve operated by the underground micro liquid station through the upper computer. The signal transmission between the underground and the aboveground is realized through a carrier module, and the electric signal realizes the switch control of an underground motor, an electromagnetic valve and a sensor through a relay. When the hydraulic oil pump works, hydraulic oil in the oil tank is pumped by the pump to be pressurized to a certain degree to push the push rod of the safety valve, the butterfly valve is opened, and the safety valve is opened. The underground liquid station adopts a structure of a semicircular column and surrounds an upper pipeline of the underground safety valve; the internal part of the oil tank adopts a layered structure to separate an oil tank, a hydraulic element, an electrical element and the like, thereby being convenient for the arrangement of the elements and pipelines.
The foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any way and in any way, and it should be understood that modifications and additions may be made by those skilled in the art without departing from the scope of the present invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent embodiments of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.
Claims (7)
1. A miniature liquid station system in pit for opening relief valve in pit which characterized in that: the system comprises an aboveground electrical control system, an underground electrical control system and an underground micro liquid station; the underground electric control system is connected with the underground safety valve through the underground micro liquid station.
2. A micro down-hole fluid station system for opening a down-hole safety valve as defined in claim 1, wherein: the aboveground electrical control system comprises a computer, a Programmable Logic Controller (PLC) and a power carrier machine I; a first power carrier module is arranged in the first power carrier; and the computer is connected with the first power carrier module through the Programmable Logic Controller (PLC).
3. A micro down-hole fluid station system for opening a down-hole safety valve as defined in claim 2, wherein: the underground electrical control system comprises a power line carrier machine II, a remote data acquisition and transmission module and a relay; and a second power carrier module is arranged in the second power carrier, the second power carrier is connected with one end of the relay through a remote data acquisition and transmission module, and the other end of the relay is connected with the underground micro liquid station.
4. A micro down-hole fluid station system for opening a down-hole safety valve as defined in claim 3, wherein: and a first power carrier module arranged on the aboveground electrical control system is connected with a second power carrier module arranged on the underground electrical control system through a power line.
5. A micro down-hole fluid station system for opening a down-hole safety valve as defined in claim 4, wherein: the underground micro liquid station comprises an oil tank, a motor, a micro plunger pump, an overflow valve, a normally closed first electromagnetic valve, a normally closed second electromagnetic valve, a one-way valve and a single-action hydraulic cylinder; the single-acting hydraulic cylinder is provided with an oil path inlet, and the oil tank is connected with the oil path inlet arranged on the single-acting hydraulic cylinder through a normally closed electromagnetic valve I; a micro plunger pump is arranged between the oil tank and the normally closed electromagnetic valve I and is connected with a motor; a check valve is arranged between the normally closed electromagnetic valve I and the oil way inlet of the single-action hydraulic cylinder; the oil tank is connected with an oil way inlet arranged on the single-action hydraulic cylinder through a normally closed electromagnetic valve II; an overflow valve is arranged between the oil tank and the normally closed electromagnetic valve I; the motor, the normally closed electromagnetic valve I and the normally closed electromagnetic valve II are connected with the relay; the single-acting hydraulic cylinder is connected with the safety valve.
6. A micro down-hole fluid station system for opening a down-hole safety valve as defined in claim 5, wherein: and an oil way inlet of the single-action hydraulic cylinder is provided with a pressure sensor, and the pressure sensor is connected with the remote data acquisition and transmission module.
7. A micro down-hole fluid station system for opening a down-hole safety valve as defined in claim 6, wherein: and a filter is arranged between the oil tank and the micro plunger pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020917635.9U CN212642664U (en) | 2020-05-27 | 2020-05-27 | Miniature underground liquid station system for opening underground safety valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020917635.9U CN212642664U (en) | 2020-05-27 | 2020-05-27 | Miniature underground liquid station system for opening underground safety valve |
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| CN212642664U true CN212642664U (en) | 2021-03-02 |
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| CN202020917635.9U Active CN212642664U (en) | 2020-05-27 | 2020-05-27 | Miniature underground liquid station system for opening underground safety valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622711A (en) * | 2020-05-27 | 2020-09-04 | 思达斯易能源技术(集团)有限公司 | Miniature underground liquid station system for opening underground safety valve |
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2020
- 2020-05-27 CN CN202020917635.9U patent/CN212642664U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622711A (en) * | 2020-05-27 | 2020-09-04 | 思达斯易能源技术(集团)有限公司 | Miniature underground liquid station system for opening underground safety valve |
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