桂林理工大学学报Issue(2):217-226,10.DOI:10.3969/j.issn.1674-9057.2015.02.001
川中地区下寒武统龙王庙组优质储层形成机理
Formation mechanism of high quality Longwangmiao reservoir from central Sichuan basin
摘要
Abstract
Analysis covers the formation and reconstruction of Lower Cambrian Longwangmiao Formation reser-voirs in Gaoshiti -Moxi structure of central Sichuan basin,esp.the formation mechanism of the high quality Longwangmiao reservoir.According to the drilling data,logging data,testing data,seismic data,core observa-tion,thin sections,casting sections,geochemical analysis,the characteristics of grain beach and epigenetic di-agenesis of Longwangmiao reservoir are studyied.The results show that grain beach is important for the formation of the high quality Longwangmiao reservoir.Seawater dolomitization and penecontemporaneous fresh-water dis-solution are the key to early formation.Epigenic karstification and hydrocarbon (oganic acids)filling are the important construction diagenesis and retention diagenesis to late formation.The dissolution pore-hole reservoirs are well preserved in the overpressure system.This study is important to exploration and development of oil and gas.关键词
优质储层/形成机理/龙王庙组/川中地区Key words
high quality reservoir/formation mechanism/Longwangmiao formation/central Sichuan basin分类
天文与地球科学引用本文复制引用
田艳红,王晨霞,吴娟,龙翼,李泽奇,刘树根,赵异华,孙玮,宋林珂,宋金民,梁锋,尹柯惟,李俊良..川中地区下寒武统龙王庙组优质储层形成机理[J].桂林理工大学学报,2015,(2):217-226,10.基金项目
国家重点基础研究发展计划“973”项目(2012CB214805);国家科技重大专项 ()