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一、地层中天然气的压力是气田开发的主要动力天然气田中,除了极少数是刚性水驱气田外,绝大部分是以气驱为主的。因此,气田开发中天然气在地层、井筒和地面集输管网中的流动,主要靠气体本身的弹性能量。地层压力的高低,具体反映了气体弹性能量的大小。气田和气井的稳产主要靠压力降来维持。气田压力越高,在确定的采气速度下,气田和气井维持的稳产时间就越长。气田开发中压力的损耗主要有以下几方面:
First, the pressure of natural gas in the strata is the main driving force in the development of gas fields Natural gas fields are dominated by gas-driven except for a few of them being rigid water-driven gas fields. Therefore, the natural gas flow in the gas field development in the formation, wellbore and ground gathering pipe network, mainly by the elastic energy of the gas itself. The level of formation pressure, specifically reflects the size of gas elastic energy. The stable production of gas fields and gas wells mainly depends on the pressure drop. The higher the pressure in the gas field, the longer gas production and gas wells will maintain stable production at a certain gas recovery rate. Gas pressure loss in the development of the following aspects: