摘要
裂缝—溶蚀孔洞型碳酸盐岩储层是陕甘宁盆地中部气田主要的天然气储层之一，其特征表现为连片的溶蚀水平孔、洞与微细裂缝相连通。文章建立了符合该储层结构的特征模型，并从应力场作用的观点出发，讨论了渗流过程中储层岩石的约束应力作用与渗透率之间的理论关系，运用建立的岩石渗透率与净围压的关系式计算得到的数据，同实验得到的结果十分接近，达到了预期效果。
The carbonate rock reservoir,with the character of the fracture-karst vug communicating with each other,is a main one of so reservoirs in the centre part gas field of Shanganning Basin.The model tallying with the reservoir structure character is set up. In the light of stress field viewpoint,the theoretical relation between reservoir restrain stress action and permeability in seepage flow course is discued.The dare obtained by the relational expression between permeability and hydrostatic surrounding pressure are very close to experimental results.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1995年第6期18-21,共4页
Natural Gas Industry
关键词
储集层
孔洞
渗透率
碳酸盐岩
Reservoir
Fracture(rock )
Cavern
Permeability
Stress field
Eerduosi Basin.
