摘要
根据野外剖面及钻井岩心的宏观观察,借助薄片和物性资料对宜宾潜伏构造T1j14—T1j3段储层特征、控制因素进行了研究。研究表明,宜宾潜伏构造T1j14—T1j3段储集岩储集性能白云岩最好,储集空间主要有晶间孔、晶间溶孔和裂缝。影响储层特征的主要成岩作用有白云岩化作用和古岩溶,总的来说,宜宾潜伏构造储层为低孔、低渗储层。
This paper is based on the outdoor profile and the macroscopic observation of drilling core.We research on the reservoir characteristics and controlling factors of Yibin buried structure T1j3～T1j41 reservoir with draw support from lamella and physical property datum.The result indicates that the best reservoir rock of Yibin buried structure T1j3～T1j41 reservoir is dolomite.Reservoir space mainly includes intercrystal pore,intercrystal solution pore and split.The main diagenesis affecting the reservoir characteristics is dolomitization and palaeokarst.In general,Yibin buried structure is featured by low porosity,low permeability based on the comprehensive evaluation.
出处
《断块油气田》
CAS
2007年第4期14-16,共3页
Fault-Block Oil & Gas Field
关键词
宜宾
嘉陵江组
储层
控制因素
古岩溶
Yibin buried structure,Jialingjiang Formation,reservoir,controlling factor,palaeokarst
