泌阳凹陷南部陡坡带南部核三段储集层特征分析  

Reservoir Characteristics Of Member 3 of Hetaoyuan Formation In the Southern Steep Slope of Biyang Depression

作　　者：刘启亮[1,2] 罗顺社[1,2] 何珍[1,2] 赵明强[3] 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学),湖北荆州434023 [2]长江大学地球科学学院,湖北荆州434023 [3]中石化江汉油田分公司江汉采油厂,湖北潜江433123

出　　处：《长江大学学报（自科版）（上旬）》2010年第2期171-173,共3页JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG

摘　　要：通过对南襄盆地泌阳凹陷的测井资料、岩石薄片、铸体薄片、地球化学特征、粒度资料分析,详细研究了泌阳凹陷南部陡坡带南部桃园组三段碎屑岩体的储层特征。泌阳凹陷南部陡坡带南部核桃园组三段为一套扇角洲-湖泊沉积体系,储集砂体主要发育在扇三角洲前缘水下分流河道、河口砂坝、前缘席状砂体、湖底扇等沉积微相内。储集层的岩性主要为岩屑砂岩和长石岩屑砂岩,储集空间以原生孔隙为主,孔隙连通性较好,孔隙度平均值为10%～20%,渗透率平均值为1000×10-3μm2,属于中孔高渗储层。扇三角洲前缘滑塌成因的湖底扇沉积砂体物性较好,且被周围的浅湖-半深湖相暗色烃源岩包围,是该区核桃园组最有利的储集砂体。Based on the southern steep slope in Biyang Sag of Nanxiang Basin,logging data,casting sections,geochemical and granularity material analysis are studied in detail,the southern steep slope in Biyang Depression with three clastic rock Hetaoyuan group of reservoir characteristics.The southern steep slope in Biyang Depression with walnut garden for a group of three sections fan Angle chau depositional systems,mainly sandbody in fan delta front of underwater distributary channel sand dam,estuary,the front seats shape,sublacustrine fan sandbody sedimentary microfacies,etc.The lithologic reservoir for lithic sandstone,feldspar sandstone reservoir space debris,with primary porosity and pore mainly connectivity,porosity average for 10%~20%,permeability average 10-3 for 1000m2,belong to holes through high permeability reservoirs.The causes of fan delta front slump sublacustrine sedimentary sand body has better properties,and the shallow lake around half deep lacustrine dark hydrocarbon source rocks,and is surrounded by the group of the most advantageous walnut reservoir sand.

关 键 词：泌阳凹陷 储集层 扇三角洲 

分 类 号：P618.13[天文地球—矿床学]