CN218493583U

CN218493583U - Steel wire operation hydraulic bridge plug tool for lowering bridge plug in oil pipe and casing pipe

Info

Publication number: CN218493583U
Application number: CN202222594905.9U
Authority: CN
Inventors: 李献平; 赵广; 陈为民
Original assignee: BEIJING JIEWEI SITE TECHNOLOGY CO LTD
Current assignee: BEIJING JIEWEI SITE TECHNOLOGY CO LTD
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-02-17
Anticipated expiration: 2032-09-29

Abstract

The utility model relates to a steel wire operation hydraulic bridge plug tool for installing a bridge plug in an oil pipe and a sleeve, which mainly comprises a steel wire operation tool, a battery part, an electronic section part, a hydraulic part, an adapter and a bridge plug; the upper end of the battery part is connected with a steel wire operation tool, the lower end of the hydraulic part is connected with an adapter and a bridge plug, and the steel wire operation tool, the battery part, the electronic section part, the hydraulic part, the adapter and the bridge plug are sequentially connected through threads from top to bottom in specific implementation. After the bridge plug is lowered to a preset setting position through steel wire operation, the timing driving circuit starts the motor to drive the pump, and the hydraulic bridge plug tool generates a setting force acting oppositely to enable the bridge plug to be set. The hydraulic bridge plug tool for steel wire operation has the characteristics of convenience in operation, simplicity in operation, economy, environmental friendliness, stability and reliability in seat sealing and the like.

Description

Steel wire operation hydraulic bridge plug tool for lowering bridge plug in oil pipe and casing pipe

Technical Field

The utility model relates to an oil instrument field in the pit especially involves a steel wire operation hydraulic pressure bridging plug instrument.

Background

The hydraulic bridge plug tool for steel wire operation is one hydraulic bridge plug tool for setting underground bridge plug or packer. Under the condition of derrick and large equipment, a lower bridge plug or a packer is usedAnd (3) pressing the seat seal by throwing a ball on the ground in a mode of a drill rod, an oil pipe or a continuous oil pipe. The mode has long operation time and high operation cost and needs large-scale equipment such as a derrick, a coiled tubing and the like. The bridge plug or packer is set under the condition without a derrick and large equipment, and the common modes are cable transmission explosion or hydraulic setting, steel wire operation explosion or mechanical setting. By means of cable transmission, for the case of a relatively large corrosive environment, such as H ₂ S、CO ₂ The damage to the cable is large in an acidic environment, and the economic cost for replacing the cable is high; the cable gunpowder explosion mode is high in danger coefficient, unstable and not environment-friendly; in addition, the cable transmission hydraulic seat seal needs equipment such as a ground control panel and a logging truck, and the operation is complicated. Explosive setting for steel wire operation needs gunpowder, so that on one hand, the danger coefficient is high, and on the other hand, the stability difference of the gunpowder cannot ensure that the bridge plug can be successfully set; the mechanical setting of steel wire operation mainly adopts the jarring mode of putting up and down to make bridge plug or packer setting, and the setting power that this kind of setting mode produced is less, and bridge plug or packer setting is unsatisfactory, and the leakproofness is poor.

Disclosure of Invention

Based on the problem, the utility model provides a steel wire operation hydraulic pressure bridging plug instrument of bridging plug under in oil pipe and sleeve pipe can use battery in the pit as the power in quick seat sealing bridging plug or packer in oil pipe or sleeve pipe, and the motor drive pump provides hydraulic power's steel wire operation hydraulic pressure bridging plug instrument, has the operation convenience, easy operation, economic environmental protection, characteristics such as seat sealing reliable and stable.

The specific technical scheme is as follows:

the utility model provides a steel wire operation hydraulic pressure bridging plug instrument of bridging plug under in oil pipe and sleeve pipe, includes steel wire operation instrument, adapter, bridging plug, still includes battery part, electron festival part, hydraulic pressure part, and steel wire operation instrument is connected to battery part upper end, and the electron festival part is connected to battery part lower extreme, and hydraulic pressure part is connected to electron festival part lower extreme, and adapter and bridging plug are connected to hydraulic pressure part lower extreme.

The battery part mainly comprises a battery shell, a battery insulating shell, a battery, a safety fuse and a first joint; the battery is fixed in the battery insulating shell in a series connection mode, the lower part of the battery is connected with the safety fuse, the safety fuse is arranged in the battery insulating shell, the battery insulating shell is fixed in the battery shell, the lower end of the battery shell is connected with the first joint, and the lower end of the first joint is connected with the electronic joint shell.

The battery is a high-temperature resistant explosion-proof disposable battery.

The battery is a high-temperature-resistant explosion-proof rechargeable battery.

The electronic section part comprises an electronic section shell, a booster circuit, a timing circuit, a driving circuit and a second joint; the booster circuit, the timing circuit and the driving circuit are fixed in the electronic joint shell, and the lower end of the electronic joint shell is connected with a second joint; the lower end of the second joint is connected with the outer cylinder.

The hydraulic part mainly comprises a balance spring, a balance piston, a motor drive pump, a limit switch seat, a limit switch, a power pipeline, a piston, an outer cylinder and a piston rod; the lower end of the balance spring is connected with a balance piston, the lower end of the motor drive pump is connected with a power pipeline, a limit switch is arranged on a limit switch seat, the power pipeline penetrates through the center of the piston, the lower end of the piston is connected with a piston rod, and the lower end of the piston rod is arranged outside the outer barrel.

The piston and the piston rod are designed to be of a one-stage piston structure or a structure formed by connecting multiple stages of pistons in series with large seating force.

Has the advantages that:

1. a bridge plug or a packer can be quickly set in the oil pipe or the casing;

2. the steel wire operation hydraulic bridge plug tool which uses the underground battery as the drive and uses the motor to drive the pump to provide hydraulic power has the characteristics of convenient operation, simple operation, economy, environmental protection, stable and reliable seat seal and the like.

Drawings

FIG. 1 is a schematic view of a hydraulic bridge plug tool for wire-laying a bridge plug in an oil pipe and a casing according to the present invention;

fig. 2 the utility model relates to a lower steel wire operation hydraulic pressure bridging plug instrument's of bridging plug inside oil pipe and sleeve pipe inside essential element schematic structure.

Detailed Description

Referring to fig. 1 and 2, a wire-operated hydraulic bridge plug tool (PST-5) for setting a bridge plug in a tubing or casing includes a battery section 2, an electronic node section 3, and a hydraulic section 4. The upper end of the battery part 2 is connected with the steel wire working tool 1, the lower end of the battery part 2 is connected with the electronic joint part 3, the lower end of the electronic joint part 3 is connected with the hydraulic part 4, and the lower end of the hydraulic part 4 is connected with the adapter 5 and the bridge plug 6.

The main components of the battery part 2 comprise a battery shell 2-1, a battery insulating shell 2-2, a battery 2-3, a safety fuse 2-4 and a first joint 2-5. The battery 2-3 is fixed in the battery insulating shell 2-2 in a series connection mode, the lower part of the battery is connected with the safety fuse 2-4, and the safety fuse 2-4 is also arranged in the battery insulating shell 2-2.

The batteries 2-3 are disposable or rechargeable batteries that are resistant to high temperatures and explosion downhole. The safety fuse 2-4 is mainly used for ensuring the safety of the circuit or the battery and preventing the circuit from being overloaded.

The main parts of the electronic section part 3 comprise an electronic section shell 3-1, a booster circuit 3-2, a timing circuit 3-3, a drive circuit 3-4 and a second joint 3-5. The booster circuit 3-2 is mainly used for boosting the voltage of the battery 2-3 to the voltage required by the motor-driven pump 4-3; the timing circuit 3-3 is used for setting the start and stop working time of the tool; the drive circuit 3-3 is primarily used for control of the motor-driven pump 4-3.

The main components of the hydraulic part 4 comprise a balance spring 4-1, a balance piston 4-2, a motor drive pump 4-3, a limit switch seat 4-4, a limit switch 4-5, a power pipeline 4-6, a piston 4-7, an outer cylinder 4-8 and a piston rod 4-9. The motor drives the pump 4-3 to convert the electric power into hydraulic power, the hydraulic power is transmitted to the lower end of the piston 4-7 through the power pipeline 4-6 to drive the piston 4-7 and the piston rod 4-9 to move, and the lower end of the piston rod 4-9 is connected with the bridge plug 6. The bridge plug 6 is seated under the opposing action of the hydraulic section 4, the adapter 5, the piston rods 4-9 and the bridge plug 6. The limit switch converts the mechanical position signal into an electric signal, and the motor drives the pump 4-3 to stop working after the piston 4-7 contacts the limit switch 4-5.

The stop working time of the motor-driven pump is set relative to the timing circuit 3-3, and the limit switch 4-5 has the mandatory property of stopping the motor-driven pump 4-3, namely the motor-driven pump stops working as long as the limit switch 4-5 is triggered. If the limit switch 4-5 is invalid, the working time of the motor-driven pump reaches the working stop time set by the timing circuit 3-3, and the motor-driven pump also stops working.

The balance spring 4-1 and the balance piston 4-2 are mainly used for balancing oil inside the instrument and well pressure.

The design of the piston 4-7 and the piston rod 4-9 is a one-stage piston structure or a structure with a plurality of stages of pistons in series with large seating force.

The specific operation process comprises the following steps: the hydraulic bridge plug tool for steel wire operation for lowering the bridge plug in the oil pipe and the sleeve is lowered into the well through steel wire operation, the upper end of the bridge plug tool is connected with a steel wire operation tool 1, and the lower end of the bridge plug tool is connected with an adapter 5 and a bridge plug 6. After the instrument string is put into a preset position, after the timing time set by a timing circuit 3-3 of the electronic joint part 3 is reached, a steel wire operation hydraulic bridge plug tool is electrified, a motor of the hydraulic part 4 drives a pump 4-3 to start working, hydraulic oil is conveyed to the lower end of a piston 4-7 through a power pipeline 4-6, and the piston 4-7 and a piston rod 4-9 are driven by the hydraulic oil to move relative to an adapter 5 and the bridge plug 6. And after the preset tension is reached, the steel wire operation hydraulic bridge plug tool is disconnected from the bridge plug 6, and the bridge plug 6 is sealed. The wire work tool 1 may be observed to vibrate or have a reduced suspended weight on the ground. After the timing time on the timing circuit 3-3 is up, the motor-driven pump 4-3 stops working, or after the piston 4-7 touches the limit switch 4-5, the limit switch 4-5 transmits an electric signal to the driving circuit 3-4 to enable the motor-driven pump 4-3 to stop working. And lifting the steel wire operating tool 1, and if the hanging weight is not increased, indicating that the bridge plug 6 is completely set and the releasing is completed.

The hydraulic bridge plug tool for steel wire operation can be lifted out of a well mouth, and the next operation is continued after simple maintenance.

It is to be noted that the embodiments and features of the present invention are not limited to the present invention, and any modifications and changes of the specific embodiments by those skilled in the art are still within the protection scope of the present invention.

Claims

1. The utility model provides a steel wire operation hydraulic pressure bridging plug instrument of bridging plug under in oil pipe and sleeve pipe, including steel wire operation instrument (1), adapter (5), bridging plug (6), a serial communication port, still include battery part (2), electron festival part (3), hydraulic pressure part (4), steel wire operation instrument (1) is connected to battery part (2) upper end, electron festival part (3) is connected to battery part (2) lower extreme, hydraulic pressure part (4) are connected to electron festival part (3) lower extreme, adapter (5) and bridging plug (6) are connected to hydraulic pressure part (4) lower extreme.

2. The wireline operated hydraulic bridge plug tool for setting a bridge plug in an oil pipe and a casing according to claim 1, wherein: the battery part (2) mainly comprises a battery shell (2-1), a battery insulating shell (2-2), a battery (2-3), a safety fuse (2-4) and a first joint (2-5); the battery (2-3) is fixed in the battery insulating shell (2-2) in a series connection mode, the lower part of the battery (2-3) is connected with the safety fuse (2-4), the safety fuse (2-4) is arranged in the battery insulating shell (2-2), the battery insulating shell (2-2) is fixed in the battery shell (2-1), the lower end of the battery shell (2-1) is connected with the first joint (2-5), and the lower end of the first joint (2-5) is connected with the electronic joint shell (3-1).

3. The wireline operated hydraulic bridge plug tool for setting a bridge plug in an oil pipe and casing of claim 2, wherein: the batteries (2-3) are high-temperature-resistant and explosion-proof disposable batteries.

4. The wireline operated hydraulic bridge plug tool for setting a bridge plug in an oil pipe and a casing of claim 2, wherein: the battery (2-3) is a high-temperature-resistant explosion-proof rechargeable battery.

5. The wireline operated hydraulic bridge plug tool for setting a bridge plug in an oil pipe and casing of claim 1, wherein: the electronic section part (3) comprises an electronic section shell (3-1), a booster circuit (3-2), a timing circuit (3-3), a driving circuit (3-4) and a second joint (3-5); the booster circuit (3-2), the timing circuit (3-3) and the drive circuit (3-4) are fixed in the electronic section shell (3-1), and the lower end of the electronic section shell (3-1) is connected with the second joint (3-5); the lower end of the second joint (3-5) is connected with the outer cylinder (4-8).

6. The wireline operated hydraulic bridge plug tool for setting a bridge plug in an oil pipe and casing of claim 1, wherein: the hydraulic part (4) mainly comprises a balance spring (4-1), a balance piston (4-2), a motor drive pump (4-3), a limit switch seat (4-4), a limit switch (4-5), a power pipeline (4-6), a piston (4-7), an outer cylinder (4-8) and a piston rod (4-9); the lower end of a balance spring (4-1) is connected with a balance piston (4-2), the lower end of a motor drive pump (4-3) is connected with a power pipeline (4-6), a limit switch (4-5) is arranged on a limit switch seat (4-4), the power pipeline (4-6) penetrates through the center of the piston (4-7), the lower end of the piston (4-7) is connected with a piston rod (4-9), and the lower end of the piston rod (4-9) is arranged outside an outer barrel (4-8).

7. The wireline operated hydraulic bridge plug tool for setting a bridge plug in an oil pipe and casing of claim 6, wherein: the piston (4-7) and the piston rod (4-9) are one stage.

8. The wireline operated hydraulic bridge plug tool for setting a bridge plug in an oil pipe and a casing of claim 6, wherein: the pistons (4-7) and piston rods (4-9) are multi-stage.