摘要
笔者通过总结国内外泥页岩类气藏发现:在主力产层均发育裂缝。由于此类岩层孔隙度渗透率极低,且空隙曲折度高,裂缝的存在不但可以做为储存空间,而且还能改善孔渗特性,同时更能连接孔隙以及层面微裂隙,极大地缩短气体扩散渗流的通道,对气体的产出有重要意义。
I find that fractures are growing in principal producing formation through summing-up shale gas in the world.This kinds of reservoir's porosity and permeability is very low,fractures can provide storage volume.Moreover fractures can not only improve porosity and permeability of reservoir,but also can bridge pore and microcracks,maximal cutting down the way of gas diffusing and percolation flow.It is very important to occurrence.
出处
《内蒙古石油化工》
CAS
2011年第2期147-148,共2页
Inner Mongolia Petrochemical Industry
关键词
页岩气
裂缝
赋存机理
产出模式
Shale gas
Fractures
Mechanism of presence
Mode of occurrence
