A hydraulic oil regulating device for gas drilling downhole power system

A technology for regulating devices and power systems, applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve the problem of reduced permeability, difficult to achieve reservoir protection or discover new gas reservoirs, and direct gas drive actuators Insufficient work and other problems to achieve the effect of stabilizing the power source

Active Publication Date: 2022-06-07
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the exploration of oil and gas resources in China is becoming more and more difficult. At present, it has turned to low-yield, low-pressure, low-permeability and other difficult-to-exploit oil and gas reservoirs, which contain a large number of water-sensitive, salt-sensitive, alkali-sensitive and clastic rock formations, and the permeability after interaction with drilling filtrate It is difficult to achieve reservoir protection or discover new gas reservoirs with conventional drilling methods
The use of gas drilling technology is more conducive to the discovery and protection of oil and gas layers, but the gas directly drives the actuator to perform insufficient work

Method used

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  • A hydraulic oil regulating device for gas drilling downhole power system
  • A hydraulic oil regulating device for gas drilling downhole power system
  • A hydraulic oil regulating device for gas drilling downhole power system

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Embodiment Construction

[0022] Hereinafter, the hydraulic oil regulating device for a gas drilling downhole power system of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0023] The invention provides a hydraulic oil adjusting device for a gas drilling downhole power system.

[0024] In an exemplary embodiment of the present invention, as figure 1 As shown, the regulating device may include a pressure control valve 31 and a flow control valve 32 that are coaxially arranged and connected to each other, and the regulating device as a whole may be a cylinder having a slot-like or hole-like structure.

[0025] Specifically, as figure 1 As shown, the pressure control valve 31 may include a pressure control valve core 311 and a pressure control valve seat block 312, and the pressure control valve core 311 may be installed in the pressure control valve seat block 312 and arranged coaxially. The pressure control valve spool 311 may...

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Abstract

The invention provides a hydraulic oil regulating device for a gas drilling downhole power system. The regulating device includes a pressure control valve and a flow control valve, the pressure control valve includes a pressure control valve spool and a pressure control valve seat block, the pressure control valve spool is arranged in the pressure control valve seat block, and the pressure control valve is in a normally closed state And it is configured to open after the force reaches the opening threshold, so as to let in external hydraulic oil; the flow control valve includes a flow control valve spool, a flow control valve seat block and a valve block gland, and the flow control valve spool is set in the flow control In the valve seat block, the spool of the flow control valve can adjust the flow of hydraulic oil; the pressure control valve seat block, the flow control valve seat block and the valve block gland are connected coaxially in sequence. The beneficial effects of the invention include: avoiding excessive pressure loss and providing continuous pressure and flow supply.

Description

technical field [0001] The invention relates to the technical field of oil and natural gas drilling equipment, in particular to a hydraulic oil adjusting device for a gas drilling downhole power system. Background technique [0002] At present, the exploration of domestic oil and gas resources is becoming more and more difficult. At present, it has turned to low-yield, low-pressure, low-permeability and other difficult-to-exploit oil and gas reservoirs, including a large number of water-sensitive, salt-sensitive, alkali-sensitive and clastic rock formations, and the permeability after the interaction with drilling filtrate Sharply reduced, it is difficult to achieve reservoir protection or discover new gas reservoirs with conventional drilling methods. The use of gas drilling technology is more conducive to the discovery and protection of oil and gas formations, but the gas directly drives the actuator to do less work. SUMMARY OF THE INVENTION [0003] Aiming at the defic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 周长虹李宬晓徐忠祥李金和许期聪颜海杨博仲王虎刘殿琛李露春
Owner BC P INC CHINA NAT PETROLEUM CORP
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