Hydraulic cylinder type water drainage-gas recovery device

Abstract

The invention discloses a hydraulic cylinder type drainage gas recovery device, which comprises a natural gas compressor (1), a gas-liquid separation tank (2), a shaft (4) arranged in a gas well (3), and a gantry (5) beam An oil cylinder (6) is fixedly installed on the top, and the piston rod of the oil cylinder (6) is provided with a gland (7) that can slide up and down along the shaft (4), and a liquid inlet is provided on the side wall of the gas-liquid separation tank (2) (9) and the liquid outlet (10), the liquid inlet (9) is connected to the upper end of the delivery pipe (8), the gas-liquid separation tank (2) is provided with a filter screen (11), the gas-liquid separation tank (2) An air outlet (12) is arranged on the top of the gas compressor (1), an exhaust pipe (13) is connected to the output end of the natural gas compressor (1), and a jacket (14) is set on the exhaust pipe (13). The invention has the beneficial effects of realizing continuous pressurized gas lift drainage and gas recovery, reducing losses caused by liquid accumulation in gas production wells and stopping production, increasing gas production of water producing gas wells, and high production efficiency.

Description

technical field [0001] The invention relates to the technical field of gas recovery in oil and gas fields, in particular to a hydraulic cylinder type drainage gas recovery device. Background technique [0002] At present, natural gas has become an indispensable fuel for people. The deeper the gas well, the greater the amount of water deposited in the gas well, and the natural gas is buried under water, resulting in a decrease in the liquid-carrying capacity of the gas-producing well, and it is impossible to realize self-spraying liquid gas production. Some gas wells with high water production were shut down due to liquid accumulation. After the shutdown, the natural gas is still in the gas well, resulting in a great waste of resources, and manual extraction has the characteristics of a large workload and a small amount of extraction. [0003] In recent years, oil and gas fields have carried out a number of studies and experiments on drainage and gas recovery technologies. A...

AI Technical Summary

Problems solved by technology

However, the number of high-pressure gas source wells is currently limited, which cannot fully meet the technical requirements of gas lift drainage and gas recovery

[0004] In addition, the drainage gas recovery device used in the foam drainage gas recovery process can only press water and natural gas out of the gas well, but cannot separate water and natural gas, so a gas-water separator is needed for separation, and this gas-water separation The cost of the device is high, which increases the input cost of gas production

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