松辽盆地宋站地区沙河子组储层砂体特征与分布预测  

Reservoir Sand Body Characteristics and Distribution Prediction of Shahezi Formation in Songzhan Area of Songliao Basin

作　　者：杨文杰 胡明毅[1,2] 李弘林 元懿 YANG Wenjie;HU Mingyi;LI Honglin;YUAN Yi(School of Geosciences, Yangtze University, Wuhan, Hubei 430100, China;Unconventional Oil and Gas Co-construction Innovation Center, Yangtze University, Wuhan, Hubei 430100, China)

机构地区：[1]长江大学地球科学学院,湖北武汉430100 [2]长江大学非常规油气省部共建协同创新中心,湖北武汉430100

出　　处：《中国锰业》2020年第2期46-49,共4页China Manganese Industry

基　　金：“十三五”国家科技重大专项(2016ZX05007-002);长江大学优秀博士、硕士学位论文培养计划资助项目(YS2018006)。

摘　　要：为了有效预测宋站地区沙河子组有利储集层,依据岩心、测井、地震以及其他分析测试等资料,并结合前期沉积相研究的认识,对沙河子组储层岩石类型、物性、含气性以及地球物理响应特征进行了研究。研究区沙河子组储层岩石类型主要为砂砾岩,孔隙度一般小于10%,渗透率普遍小于1×10-3μm2,认为沙河子组砂砾岩为低孔—低渗型储层。研究发现:区内主要发育的辫状河三角洲和扇三角洲两种沉积相带均可作为有利储集相带,其发育的砂砾岩体普遍含气,且砂砾岩厚度越大,其产气能力越强,表明沉积环境和砂砾岩厚度是影响储层发育的关键因素。并通过地震反演等技术对研究区砂体厚度和平面展布进行预测,提出研究区有利储层分级划分方案。To predict the favorable reservoir of Shahezi formation in Songzhan area effectively,we have made a research of the rock types,including physical properties,gas bearing properties and geophysical response characteristics of Shahezi formation on the data of core,well logging,seismic analysis and other tests.We have also known of sedimentary facies research in the early stage.The reservoir rock type of Shahezi formation in the study area is mainly glutenite with porosity generally less than 10%and permeability generally less than 1×10-3μm2.It is considered that glutenite of Shahezi formation is a low porosity and low permeability reservoir.It is found that the braided river delta and fan delta sedimentary facies belts developed in this area can be regarded as favorable reservoir facies belts.The developed sand-gravel bodies generally contain gas.The thicker the conglomerate is,the stronger its gas-producing capacity is.It indicates that the sedimentary environment and the thickness of the conglomerate are the key factors affecting the development of the reservoir.The thickness and surface distribution of sand body in the study area are predicted by seismic inversion and other techniques.

关 键 词：沙河子组 砂体类型 储层特征 砂体预测 

分 类 号：TE122.2[石油与天然气工程—油气勘探]