准噶尔盆地阜东斜坡中侏罗统头屯河组储层敏感性特征  

Reservoir sensitivity of Middle Jurassic Toutunhe Formation in Fudong slope, Junggar Basin

作　　者：李云[1] 祁利褀 胡作维[1] 文华国[1] 

机构地区：[1]成都理工大学沉积地质研究院,成都610059 [2]中国石油新疆油田分公司实验检测研究院,新疆克拉玛依834000

出　　处：《岩性油气藏》2014年第1期52-57,66,共7页Lithologic Reservoirs

基　　金：国家"十二五"重大科技专项"鄂尔多斯盆地重点探区碎屑岩沉积体系;储层特征与主控因素"(编号:2011ZX05002-001-001)资助

摘　　要：阜东斜坡中侏罗统头屯河组储层是准噶尔盆地东部油气勘探的重要目的层,但储层敏感性复杂,是制约油气开发的重要因素之一。尽管头屯河组储层黏土矿物含量较低,但各种类型的黏土矿物均有发育,其中以蒙脱石和伊/蒙混层居多。通过流动性实验分析得出,阜东斜坡中侏罗统头屯河组储层以水敏性伤害最强,盐敏性和酸敏性伤害次之,这些均是造成各储层损害的主要原因。敏感性伤害程度与黏土矿物类型、孔喉大小及碎屑组分密切相关,因此在钻井、试油过程中应注重储层保护,尽量减小储层伤害。Middle Jurassic Toutunhe Formation in Fudong slope is one of the important hydrocarbon objective layers in eastern Junggar Basin. The complex reservoir sensitivity restricted the development of oil and gas. Clay minerals are low in Toutunhe Formation, but the mineral types are rich, and various types of clay minerals are developed. The mixed-layer smectite and illite are most abundant. Through the liquidity experiments, the reservoir has the strongest water sensitivity, followed by salinity sensitivity and acidic sensitivity, which are the main reasons for the reservoir damage. The damage degree of the sensitivities is associated with the types of clay minerals, pore throat and clastic composition. The sensitivity analysis shows the importance of the process of reservoir protection in drilling and testingto reduce formation damage.

关 键 词：储层敏感性 头屯河组 中侏罗统 阜东斜坡 

分 类 号：TE121.3[石油与天然气工程—油气勘探]