摘要
目前页岩气开发在中国越来越受到重视。以四川盆地的一个试验区块为例,为了指导该页岩区块的勘探开发,分析了该页岩区块的储层特征,建立了页岩气藏地质模型,并运用Eclipse数值模拟软件中页岩气、双孔双渗、组分模型等模块建立了数学模型。在历史拟合的基础上,对目标区从井网井距、产气量、采收率等方面进行了分析评价及开发效果预测。研究结果表明:目标区块的开发方式为菱形井网,适当加大井网密度,能够提高采收率;单井产量平均为100 000 m3/d,其中水平段长度平均1 500 m,压裂缝长290 m,蕴藏着十分丰富的页岩气资源,其页岩气勘探开发潜力巨大。
Shale gas development is becoming more and more attention in China at present. For example,a test block of Sichuan basin,in order to guide the exploration,the reservoir characteristics of shale module are analyzed,gas reservoir geological model are build,the nu- merical simulation software Eclipse are used to establish mathematical model based on shale gas,dual-porosity and dual-permeability,component model.Analyze and forecast the target zone from well pattern and spacing,gas production,recovery and so on through history matching.This study shows that the target block development approach is diamond shaped well, increasing well spacing density can enhance recovery.The average production per well is 100 000 m3/d,where the horizontal length of average 1 500 m, pressure crack length 290 m, the shale gas resources is very rich and there is great potential to develop.
出处
《石油化工应用》
CAS
2015年第11期18-21,共4页
Petrochemical Industry Application
基金
中国石油科技创新基金研究项目
项目编号:2014D-5006-0209
关键词
页岩气
双孔双渗
水平井
数值模拟
开发效果
shale gas
dual-porosity and dual-permeability
horizontal well
numerical simu-lation
development effect
