Pressurization and mixed transportation process and device of gas field well station

Abstract

The invention relates to a process and a device for performing the pressurization and the mixed transportation for natural gas in a gas field well station, and solves the problems of weak adaptability to variable working conditions, limited adjusting capacity and low mixed transportation efficiency in a traditional gas field natural gas compressor. A hydraulic cylinder A and a hydraulic cylinder B alternately pump in hydraulic oil under the control of a hydraulic working station to push a piston to move; with a steel wire rope A and a steel wire rope B, when any one of the hydraulic cylinders advances, the other one of the hydraulic cylinders can return, so that alternate reciprocating motion is realized; the hydraulic cylinder A and the hydraulic cylinder B not only can realize series connection operation, but also can realize parallel connecting operation; and the pressurization and the outward transportation of gas and liquid two-phase flows can be realized by continuous reciprocating motion of the hydraulic cylinder A and the hydraulic cylinder B under combined actions of a one-way valve A, a one-way valve B, a one-way valve C and a one-way valve D. The process and the device have strong adaptability to single wells, good pressurization effect on the gas and liquid two-phase flows and high mixed transportation efficiency, can be flexibly regulated according to the production conditions of single wells administered by a gas gathering station, and save the production cost.

Description

technical field [0001] The invention relates to a process and a device for pressurizing natural gas in a gas well and transporting gas and water in a gas field well station. Background technique [0002] In the process of natural gas development, due to the advancement of edge and bottom water, as well as fracturing, acidification and other operational measures, water continuously accumulates in the wellbore of the gas well, resulting in "fluid accumulation in the gas well", resulting in a decrease in gas production and even crushing the gas well. If the gas flow has enough energy, it will be taken out of the wellhead; if the gas flow energy is insufficient, formation water will gradually accumulate in the wellbore and near the bottom of the well due to the slippage effect during the lifting process, causing serious damage to the gas well and seriously restricting Normal production of natural gas wells. Drainage gas recovery is an effective method to solve the problem of "f...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of poor pressurization effect and low gas-liquid mixed transportation efficiency of existing gas field wells and stations, and to provide a process and device for gas field well station pressurization and mixed transportation

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