摘要
描述了东濮凹陷文留地区沙三^(3-4)亚段的主要成岩事件,对成岩阶段进行了划分,讨论了埋藏深度、砂体类型、构造位置、断层活动、有机质演化与油气运移、埋藏历史等因素对成岩作用的影响,在分析成岩作用历史的基础上,总结出文留地区沙三^(3-4)亚段的成岩演化模式,讨论了构造位置、砂体微相和成岩相对储层储集性能的影响,指出了有利的勘探方向.
The S_(4)~2 member in the Wenliu area of the Dongpu depression is rich in disagenesis phenomena. Compaction, cementation and replacement reduced the porosity and permeability of the reservoir, and dissolution enlarged the reservoir space. According to the characteristics of organic evolution and diagenetic mineral composition, the diagenesis was classified into contemporaneous stage, early stage and later stage. Burial depth, sandbody type, structural position, fault activity, organic evolution, oil and gas migration and burial history have important effects on diagenesis. Organic evolution not only dissolved the unstable components and produced a large amount of secondary porosity, but also enhanced the precipitation of later carbonate cements and formed tight reservoirs in a certain evolution stage. Based on the controlling factors, a diagenesis model for the area was established. This model indicated that the reservoir on the flank of the structure was favorable for oil/gas accumulation .
出处
《石油大学学报（自然科学版）》
CSCD
1992年第1期8-17,共10页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
高等学校博士学科点专项科研基金
关键词
储层
成岩演化
模型
成岩作用
Reservoir
Diagenetic evolution
Model
Organic evolution
Burial history: Diagenesis
Dongpu depression
