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Petroleum extraction and lifting high-temperature gas injection valve for petroleum well

A technology for oil wells and petroleum, which is applied in the direction of fluid extraction, earthwork drilling, wellbore/well components, etc. It can solve the problems of high labor intensity, high workover costs, and long production cycle, etc., to reduce the labor intensity of workers, reduce the The number of operations and the effect of improving oil production efficiency

Pending Publication Date: 2017-05-31
丹东纳泰石油机械有限公司
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  • Claims
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Problems solved by technology

[0003] In view of the above problems, the object of the present invention is to provide a high-temperature gas injection valve for petroleum oil wells to solve the problems of high workover costs, high labor intensity and long production cycle caused by repeated lifting of pumps and gas injection in the existing oil recovery process

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  • Petroleum extraction and lifting high-temperature gas injection valve for petroleum well
  • Petroleum extraction and lifting high-temperature gas injection valve for petroleum well

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 As shown, the present invention provides a high-temperature gas injection valve for oil well production lifting, including a gas injection valve body, a spline shaft 2 and a gas injection valve assembly, wherein the upper end of the gas injection valve body is provided with a gas injection valve port 3 , the gas injection valve assembly is accommodated in the gas injection valve body and is slidingly connected with the inner wall of the gas injection valve body. The spline shaft 2 is inserted in the gas injection valve assembly and can drive the gas injection valve assembly to move up and down, thereby realizing injection Opening or closing of gas valve port 3.

[0023] The gas injection valve body includes an upper gas in...

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Abstract

The invention relates to the technical field of petroleum extraction of petroleum wells, in particular to a high-temperature gas injection valve for a petroleum well. The high-temperature gas injection valve for the petroleum well comprises a gas injection valve body, a spline shaft and a gas injection valve assembly, wherein a gas injection valve opening is formed in the upper end of the gas injection valve body; the gas injection valve assembly is accommodated in the gas injection valve body and is slidably connected with the inner wall of the gas injection valve body; and the spline shaft is inserted in the gas injection valve assembly and can drive the gas injection valve assembly to move vertically, so that the gas injection valve opening can be opened or closed. During gas injection at high temperature, a pump does not need to lift, gas can be continuously and repeatedly injected, the operation time is shortened, operation frequency is reduced, the labor intensity of workers is also reduced, and the petroleum production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of oil production in petroleum oil wells, in particular to a high-temperature gas injection valve for oil production in oil wells. Background technique [0002] Our country is faced with more and more heavy oil wells, the area of ​​underground heavy oil storage is relatively large, and there are still many heavy oil mining mines that have not been developed, which are mainly limited by the current oil production technology. At present, there is no high-temperature gas injection valve on the lifting equipment for high-temperature thermal recovery. There is only a reciprocating pump for lifting high-temperature oil production pumps. Due to the high thermal recovery temperature of heavy oil and the large thermal elongation of oil pumping, the pump efficiency is low. The screw pump can lift heavy oil, but the stator of the screw pump is made of rubber, which is not resistant to high temperature. When high tempe...

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Application Information

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IPC IPC(8): E21B43/24
CPCE21B43/24
Inventor 王金强张明亮雷德荣
Owner 丹东纳泰石油机械有限公司
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