鄂尔多斯盆地寺湾地区延长组长6段储层特征及其影响因素  

Characteristics of Chang-6 Reservoirs and Its Influence Factors in Siwan area,Ordos Basin

作　　者：王永东[1] 王彦龙[1] 

机构地区：[1]延长油田股份有限公司

出　　处：《内蒙古石油化工》2010年第11期106-108,共3页Inner Mongolia Petrochemical Industry

基　　金："十一五"国家科技支撑计划(2007BAB17B05)资助

摘　　要：目的:通过研究储层特征及其影响因素,进一步提高油田勘探开发水平。方法:以研究区内大量的分析资料为基础,对储层的沉积特征、岩石学特征、孔隙类型与微观结构特征、物性分布特征进行了详细研究,分析了影响储层储集性能的主要因素。结果:寺湾地区长6储层属三角洲前缘亚相沉积,储层分布广泛,厚度稳定,主要储集砂体为三角洲前缘水下分流河道砂体。储层岩石类型主要为细粒长石砂岩,主要储集空间有残余原生粒间孔和次生溶蚀孔,属特低孔、特低渗储层,结论储层物性受岩相、沉积相、成岩作用的多重影响。Purpose： study the reservoir characteristics and its influencing factors in order to further enhance the level of oil exploration and development.Methods：ccording to a large quantity of laboratory data in this area,we detailed analyze the sedimentary characteristics of the reservoir roc、petrological characteristics、the porosity types and pore microstructure、physical property distribution of the reservoir,and the main influences factors are also analyzed.Results：hang-6 oil group in Siwan area is front-delta deposition subfacies,reservoir distribution is widely、thickness and stability,the distributary channel deposits is the main reservoir sands.the reservoir rock types are mainly fine-grained feldspathic sandstone;the main reservoir space is the residual interparticle porosity and the secondary solution porosity development.belong the special low porosity,the special low permeability reservoir.Conclusion：he factors that influence the reservoirs properties including the lithofacies、sedimentary facies and the diagenesis.

关 键 词：寺湾地区 岩石学特征 孔隙结构特征 影响因素 

分 类 号：P618.130.1[天文地球—矿床学]