Gas Well Cloud Pressure Lifting System Design

Natural gas is essential resource in the development of modern society. It has a pivotal position in the industrial production. Natural gas production is big in our country, but very few per capita recoverable resources reserves, so mining work of natural gas is become more important. With the development of gas field exploitation of the later period, more and more gas due to the well pressure drop can't normal inflow into the pipeline, natural gas production is declined and influence development of downstream industry. Gas field with high and low pressure gas wells which need to solve problems of gas supercharging production in low gas well and problem of gas well step-down production. The academic dissertation through comparing the characteristic of different charging ways, choose injection compressor to solve the problem of low pressure gas pressurization.(1)System based on energy equilibrium and transformation theory which to calculate the reasonable system. Firstly, the balance relationship of gas pressure can be obtained by analyzing and calculating entropy and enthalpy of gas wells. Secondly, the accuracy theory of system realization is proved by analyzing the process of system and ejector internal process theory.(2)The structure and principle of pressure lifting system were designed and system process and direction are formulated.(3)In order to solve engineering problems, using the gas field production parameters and the design process design pressure lifting system in gas wells and process flow diagram and further optimize the structure of the injector. Considering the engineering practice, to determine system can be realized(4)The direction is the realization of the system function and perfect. The targe is High reliability. The purpose is reducing the cost of production and operation. The base system which is optimized creates the different model of lifting system of gas wells pressure unit. The combination methods of gas pressure lifting system are presented to provide the reference for actual application.With the actual situation as the background, the theory of knowledge and the design principles as a key point, the reliability of system can be proved through case verification system and system be optimized. At the same time the basic methods of system is raised which make system has more universality and vitality.