摘要
方法根据陕北低渗透气田气井生产系统的情况，将天然气从气藏到井口的整个流动过程划分为通过地层的流动、完井段的流动和井筒的流动三个部分，然后建立数学模型，并与实际试采资料进行拟合分析。目的确定影响气井产能的主要因素。结果提高陕北气田气井产量的有效措施是进行气层改造；在气井开发过程中应尽量降低井口集气压力，积极推广负压射孔，减少射孔时气层的伤害。结论该方法计算较简便，对编制气田开发方案和高水平、高效益地开发气田具有一定的指导作用。
Method According to gas well production system in Shanbei low permeability gas field, the flowing process of gas from gas reservoir to well head was divided into three parts:through the formation, well completion interval, and well bore. Mathematical model was set up and matched with actual pilot production data. Purpose To determine the main factor which affects the productivity of gas well. Result The effective measures of improving gas production in Shanbei gas field are to reform gas formation, to reduce well head gas gathering pressure as much as possible during gas well development, to spread underbalanced perforation and to reduce the injury of perforation to gas formation. Conclusion The calculation of this method is simple and convenient. The method may guide the compiling of gas field development project and the developing of gas field at high level and with good benefit.
出处
《特种油气藏》
CAS
CSCD
1998年第1期43-47,共5页
Special Oil & Gas Reservoirs
关键词
生产系统
气井
气田
低渗透气田
low permeability gas reservoir, production system, model, gas well,sensible parameter, Shanbei gas field
