摘要
含膏泥岩在压实过程中排出的富盐流体进入相邻的砂岩孔隙,不仅使砂岩在成岩作用的早期形成广泛的硬石膏胶结,而且也是砂岩次生孔隙不发育的原因,这也是宁波盆地膏盐区砂岩孔隙度和渗透率降低的最重要因素。
The saline fluid expelled during the comparction of gypsum mudstone enters the pores of the adjacent sandstone. This is responsible for the extensive gypsum cement during the early diagenesis of the sandstone and is the main cause of its poorly developed secondary porosity. Thus, it is the main factor of the low porosity and low permeability of the sandstones in the gypsum and salt rich region in Ningbo basin.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1989年第4期19-26,共8页
Petroleum Exploration and Development
