苏里格气田苏6区块盒8储层物性及其主控因素  

Physical properties and main controlling factors of box 8in Su 6block of Sulige gas field

作　　者：赵璇 张金亮 郑晨晨[1] 段雅君 ZHAO Xuan;ZHANG Jinliang;ZHENG Chenchen;DUAN Yajun(College of Earth Science and Engineer,Shandong University of Science and Technology,Qingdao,Shandong 266590,China;College of Resource Science&Technology,Beijing Normal University,Beijing 100875,China)

机构地区：[1]山东科技大学地球科学与工程学院,山东青岛266590 [2]北京师范大学资源学院,北京100875

出　　处：《中国科技论文》2018年第3期321-327,共7页China Sciencepaper

基　　金：国家自然科学基金资助项目(51674156;51504143);北京师范大学自主科研基金项目(2015KJJCB11)

摘　　要：针对鄂尔多斯盆地苏里格气田苏6区块盒8致密储层油气勘探开发的问题,本文通过铸体薄片、扫描电镜、压汞、测井等分析化验实验得到的实验数据对研究区盒8致密砂岩储层的物性特征及其影响因素进行了研究。结果表明:盒8上储层岩石类型主要为岩屑石英砂岩,盒8下岩石类型主要为中砂岩,孔隙度分别为5.84%和6.45%,渗透率分别为0.21×10^(-3)μm^2和0.29×10^(-3)μm^2,均为致密砂岩储层,盒8下储层物性好于盒8上;孔隙类型以次生孔隙为主;研究区盒8优势储层主要发育在曲流河道和心滩沉积微相中,压实作用、胶结作用和溶蚀作用共同影响储层物性,其中压实作用使储层物性变差,胶结作用对储层既有保护作用又有破坏作用,溶蚀作用改善储层物性。In view of the problem of oil and gas exploration and development of tight reservoir of block 6 in Sulige gas field of the Ordos Basin,the physical characteristics and influential factors of box 8 tight sandstone reservoir were studiedthrough the experimental data obtained by cast thin section,scanning electron microscope,mercury injection and logging analysis experimental factors.The results show that the box 8 upper on the reservoir rock types are mainly lithic quartz sandstone,the box 8 lower types of rocks are mainly in sandstone,the porosity of 5.84%and 6.45%,permeability are 0.21×10-3μm 2 and 0.29×10-3μm 2,so which are dense sandstone reservoir.The box 8 lower reservoir property is good on the box 8 upper.The pore types are mainly secondary porosity.The box 8 advantages in the study area reservoir development mainly in meandering river and sedimentary facies.Compaction,cementation and dissolution mutual influence reservoir property,compaction makes the reservoir property bad,Cementation has both protective and destructive effects on the reservoir,and dissolution improves reservoir property.

关 键 词：储层地质学 储层特征 影响因素 成岩作用 苏里格气田 

分 类 号：TE122.3[石油与天然气工程—油气勘探]