姬塬地区长6油气成藏条件与富集控制因素  

Accumulation Conditions and Enrichment Controlling Factors of Chang 6 Formation in Jiyuan Region

作　　者：马艳丽[1,2] 辛红刚[1,2] 杨孝 崔小丽[1,2] 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院,西安710021 [2]低渗透油气田勘探开发国家工程实验室,西安710021 [3]中国石油长庆油田分公司油藏评价处,西安710021

出　　处：《重庆科技学院学报（自然科学版）》2017年第1期5-8,12,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家自然科学基金重大项目"中国非常规油气储层特征分类与典型地质模型建立"(41390451)

摘　　要：长6油层组为姬塬地区的主力含油层系,其含油圈闭主要受岩性变化和储层物性变化控制,是典型的岩性油藏。通过对烃源岩、储层特征,圈闭及盖层保存条件和油气成藏时空配置关系等进行综合分析,认为控制油气成藏的因素主要有2个。烃源岩、成藏动力的平面分布范围及有效的油气运移通道是决定油气是否成藏的直接因素;储层的储集性能决定了油气的富集程度。Chang 6 is the most promising target for oil/gas exploration in Jiyuan area. The oil traps are mainly controlled by lithology and reservoir physical properties,which belongs to a typical lithologic reservoir. Based on the comprehensive study on evaluation of source rock,characteristics of Chang 6 reservoir and other factors,such as trap condition,cap rock,preservation condition,time and space conditions of hydrocarbon accumulation,it is pointed out that the controlling hydrocarbon accumulation factors in Jiyuan area are plane distribution of hydrocarbon source rock and reservoir forming power,and the effectiveness of gas migration. The reservoir performance determines the enrichment degree of oil and gas.

关 键 词：长6 成藏条件 富集控制因素 鄂尔多斯盆地 

分 类 号：P618.13[天文地球—矿床学]