摘要
松辽盆地南部长岭断陷白垩系登娄库组主要储集体为河道亚相砂体。岩石类型主要以岩屑质长石砂岩、长石质岩屑砂岩为主,砂岩成分成熟度低,结构成熟度中,以中细粒为主。主要成岩作用类型有压实-压溶作用、胶结作用、交代作用、溶蚀作用等。其主要储层段处于中成岩A2到中成岩B期。根据登娄库组储层评价标准,将登娄库组储层划分为5种类型,Ⅰ、Ⅱ类为较好储层,Ⅲ、Ⅳ类为差储层,Ⅴ类为非渗透层。
The most favourable reservoir body of Cretaceous Denglouku formation in the Changling fault depression of the Songliao Basin exists in sands of channel subfacies,mainly comprising lithic arkose and feldsparthic litharenite which have low compositional maturity and medium textural maturity,and dominated by medium-fine grain size.The main diagenesis includes compaction-pressure solution,cementation,metasomatism and denudation,with major reservoir intervals being in A2-B mesodiagenesis phase.Based on reservoir evaluation standard,the Denglouku reservoirs are divided into 5 categories,among which Type I and II are the most favorable,Type III and IV are poor,and Type V is impermeable.
出处
《特种油气藏》
CAS
CSCD
2011年第3期24-26,38,共4页
Special Oil & Gas Reservoirs
基金
国家科技重大专项课题"松辽盆地深层火山岩储层识别与预测技术及南部二氧化碳气藏成藏与分布特征"(2008ZX05007-006-01)部分内容
关键词
长岭断陷
登娄库组
岩石类型
成岩作用
储层评价
Changling fault depression
Denglouku formation
rock type
diagenesis
reservoir evaluation
