摘要
本文综合应用阴极发光、电子探针、碳氧稳定同位素和流体包体等分析技术对四川丰都上二叠统生物礁的胶结物及其形成环境进行了研究,描述了成岩过程中不同期次胶结作用对孔隙演化的影响,导出了孔隙度与埋藏深度的关系,建立了孔隙—埋藏—油气生成的“三史”演化模式,并用该模式及流体包体资料分析了建南—石柱一带的油气聚集特点与保存条件。
This paper presents a detailed study on reef cements by cathodeluminescence scopy, fluid inclusion microthermometry, trace element and carbon and oxygen stable isotopes analyses,pore-water chemistry and diagenetic environments are reconstructed. Porosity evolution influenced by different cement sequences during diagenesis is examined and related to hydrocarbon migration events. It is demonstrated that certain petroleum geologic features of ShizhuJiannan area can be interpreted by this porosity evolution model,and furthermore, fluid inclusion data can provide useful information about oil and gas conservation condition.
出处
《石油勘探与开发》
EI
CAS
CSCD
北大核心
1994年第6期28-34,共7页
Petroleum Exploration and Development
关键词
生物礁
孔隙
成岩作用
油气生成
rganic reef, pore, cementing material, diagenesis, Upper Permian series