新场气田蓬莱镇组气藏整体增压开采方案研究

新场蓬莱镇组气藏为一浅层中型整装砂岩气藏,经过9年多规模开发已处于开发中后期低压阶段,受管网压力制约,气藏产量递减迅速,稳产困难,为维持气藏稳产,在气藏可采储量研究基础上,采用ReO软件对气藏生产系统进行建模并进行了21种增压开采方案优化模拟,研究表明气藏以川孝161、163、156三个井区为单元进行整体增压开采可以维持气藏稳产,较自然开采可多采出天然气2.3447×108m3,气藏单井平均采收率可提高8.26%,气藏进行整体增压开采不仅能较快收回全部投资,而且能获得较好开发效益.

Research on Pressure Boost to Exploit Project in Penglaizhen Gas Reservoir,Xingchang Gas Field

Penglaizhen formation gas reservoir of Xinchang gas field is a shallow layer and middle size whole package sandstone gas reservoir,which has been exploited extensively more than nine years and has become a low pressure field.Constrainted by the pipe network pressure,the production of the gas reservoir has declined rapidly and it is difficult to maintain its production steadily.In order to keep the gas reservoir's production steadily,based on the recoverable reserves' research,the paper sets up the model of the production system of the gas reservoir with the ReO software and simulates 21 programs of pressure boost to exploit.The modeling effort proves that the gas reservoir divided into chuanxiao 161,163 and 156 wellblock and used gas compressor to exploit can maintain production stabilization,and pressure boost to exploit can increase gas production 0.23447 billion cubic meter,the average recovery factor of single well will increase 8.26 percent,the gas reservoir whole pressure boost to exploit can take back all the investment and may get favorable benefit.