Oilfield oil well casing natural gas multi-stage compression recovery device

Abstract

The invention discloses a multi-stage compression and recovery device for oil well casing natural gas in an oil field, which is characterized in that it comprises a natural gas collection tank, a medium-pressure gas storage tank and a high-pressure gas storage tank sequentially connected in series on the natural gas transmission pipeline; the natural gas collection tank A first-stage booster pump is installed on the natural gas transmission pipeline between the medium-pressure gas storage tank and the medium-pressure gas storage tank, and a second-stage booster pump is installed on the natural gas transmission pipeline between the medium-pressure gas storage tank and the high-pressure gas storage tank. The invention can realize multi-stage compression and automatic recovery of single well and multi-well casing natural gas, can effectively solve the problems of current oil field oil well casing natural gas waste and environmental pollution caused by burning natural gas, and also solve the problem of scattered oil wells with a large number , a problem that requires a large number of people on duty. Moreover, the manufacturing cost is low, the transportation and installation are convenient, the occupied space is small, and failures are not easy to occur, and the service life is long.

Description

technical field [0001] The invention relates to an oil field oil well casing natural gas multistage compression recovery device. Background technique [0002] With the continuous increase of energy demand and the continuous reduction of existing energy sources, energy conservation, emission reduction and development of new energy sources are major issues that human beings need to struggle and solve for a long time. [0003] At present, during the pumping process of the oil wells in the oil field, each well in the oil well casing discharges about 1000m of natural gas with a pressure of 0.1-0.5MPa per day. 3 . Because its value is relatively small compared with the value of oil, and it is wasted because it is difficult to recover without corresponding recovery equipment, in order to reduce the environmental pollution of natural gas discharged into the atmosphere, it is generally consumed by burning it. This approach is a considerable waste of energy. At the same time, th...

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Problems solved by technology

[0005] The object of the present invention is: aiming at the energy waste existing in the oil field, the environmental pollution problem and the distance between wells, the natural gas discharged from each well during the oil pumping process In order to solve the problem of gas consumption and other problems, a multi-stage compression and recovery device for oil well casing natural gas in oil field applicable to single well and multi-well is provided, which solves the current waste of natural gas in oil field oil well casing and pollution to the environment caused by burning natural gas, and improves the efficiency of the oil field. Contribute to the energy crisis of mankind

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