现河油田河142块沙三中亚段沉积物源与储层特征研究  

On Sedimentary Provenance and Related Reservoir Characteristics of Block He 142 in Xianhe Oilfield

作　　者：栾春华[1,2] 

机构地区：[1]长江大学地球科学学院,湖北荆州434023 [2]中石化胜利油田分公司地质科学研究院,山东东营257015

出　　处：《石油天然气学报》2010年第3期166-169,共4页Journal of Oil and Gas Technology

基　　金：国家自然科学基金项目(40503003);教育部博士点基金项目(20030425008)

摘　　要：综合运用重矿物分析法对河142块沙三中亚段的物源进行了深入研究。河142块沙三中亚段的沉积物源主要来自于4个方向,其重矿物也组合为4个亚区,并具有不同的重矿物组合特征;不同物源所形成的沉积物特征和相类型有一定差异:东部Ⅰ区域为近距离、粗粒级重力流的冲积扇和水下扇为主;北部Ⅱ区域为中等距离、中细粒的牵引流的进积三角洲为主;北部Ⅲ区域为远距离细粒的河口坝和滨浅湖沉积;南部Ⅳ区域为远距离细粒河流相沉积;根据上述研究可以预测:研究区北西部和南部沉积区的物性总体上较优,其次为北部沉积区,而东部和中部沉积区的储层物性较差。The sedimentary provenances in the middle member of Es3 of He 142 Area were analyzed by using the method of comprehensive heavy mineral analysis,it was proposed that there were four provenances,and characterized accordingly by 4 sub-areas with different combinations of heavy minerals.The sedimentary and facies were different according to different provenances,that is,Region I in the east short and coarse-grained provenance was characterized by debris flow of underwater fan and gravity flow of alluvial fan,and Region II in the north provenance was characterized by medium distance and medium to fine grained fluvial-lacustrine sedimentation,and Region III of the north provenance was characterized by long distance and fine grained lacustrine and estuary bar sedimentation,and Region IV in the south provenance was characterized by long distance and fine grained fluvial facies.Based on the study above,it is predicted that the west-north and south part of the area are rich provenance and the north part is the next,and the east and central part are poor in reservoir physical property.

关 键 词：重矿物稳定系数 重矿物组合 物源 储层物性 

分 类 号：P618.13[天文地球—矿床学]