准噶尔盆地夏子街地区侏罗系八道湾组优势储层特征与预测  

Dominant Reservoir Characteristics and Prediction of Jurassic Badaowan Formation in Xiazijie Area,Junggar Basin

作　　者：涂智杰[1] Tu Zhijie(Yangtze University College of Technology&Engineering,College of Resource Exploration Engineering,Jingzhou,Hubei,434020,China)

机构地区：[1]长江大学工程技术学院,湖北荆州434020

出　　处：《新疆地质》2022年第3期373-377,共5页Xinjiang Geology

基　　金：国家科技重大专项准噶尔盆地岩性地层油气藏分布规律与目标评价(2017ZX05001-004)资助。

摘　　要：为明确准噶尔盆地夏子街地区侏罗系八道湾组优势储层特征和分布,本文开展岩石学和地震反演研究,预测优势储层分布范围,探讨其控制因素。结果表明,八道湾组储层以中砂岩、细砂岩为主,填隙物主要为高岭石;储集空间以剩余粒间孔和原生粒间孔为主,优势储层平均孔隙度为23.70%,高于储层平均值2.64%;优势储层渗透率平均值为125.61×10^(-2)μm,高于储层平均值86.39×10^(-2)μm;八道湾组优势储层面积为11.70 km^(2),X018井断块和XG4井断块优势砂体稳定性,横向连续性好;分流河道微相为形成优势储层的主控因素,成岩作用控制储层储集性能。该区勘探开发部署方案应考虑优势储层分布,优先在X018井断块和XG4井断块开展部署,X013井区东部可优先开展部署落实。In order to clarify the characteristics and distribution range of dominant reservoirs in Jurassic Badaowan Formation in Xiazijie area of Junggar basin,core description,thin section observation,analytical testing and seismic inversion techniques were used to analyze the petrological characteristics of reservoirs and predict the distribution range of dominant reservoirs.The research results showed that:the lithology of Jurassic Badaowan Formation in Xiazijie area was mainly medium sandstone and fine sandstone,with good to medium sorting,and the reservoir interstitial material was mainly kaolinite;the reservoir space was mainly residual intergranular pores and primary intergranular pores,and the average porosity of the dominant reservoir was 23.70%,which is 2.64%higher than that of the area;the average permeability of the dominant reservoir is 125.61mD,which was higher than that of the area 39 mD,belonging to medium porosity and permeability reservoir.The dominant reservoir area of Badaowan Formation was 11.70km^(2),and the dominant sandbodies in fault block of well Xia 018 and well Xia Gu 4 were stable with good lateral continuity;the dominant sandbodies in well Xia 013 were poor in continuity,the eastern area was relatively stable,and the western area presents the characteristics of multi-layer superposition.Distributary channel microfacies were the main controlling factors for the development of dominant reservoirs,and diagenesis also controls the reservoir performance.The distribution of dominant reservoirs should be considered in the exploration and development plan,and priority should be given to block xia018 and block xiagu4;The dominant reservoir in xia-013 well block was quite different,and the eastern part of xia-013 well block can be deployed first.

关 键 词：优势储层 储层预测 冲断带 八道湾组 孔喉结构 

分 类 号：P534.52[天文地球—古生物学与地层学] P618.130.2[天文地球—地质学]