CAJ | 학술논문

准噶尔盆地南缘中段紫泥泉子组三段(E_(1-2)z~3)储集性能好,是本区油气勘探的重要层段.储层的分布与物源有密切的成生联系,物源体系分析是油气勘探的一项重要工作.本文基于研究区内钻井和野外露头剖面的重矿物资料,对重矿物含量变化及平面分布特征进行分析,划分出不同的重矿物分区,同时对工区内钻井的砂砾岩厚度进行统计,并分析其在平面上的展布特征,确定了准噶尔盆地南缘紫泥泉子组三段物源体系,为下一步沉积体系的精细研究和储层预测奠定了基础.
준갈이분지남연중단자니천자조삼단(E_(1-2)z~3)저집성능호,시본구유기감탐적중요층단.저층적분포여물원유밀절적성생련계,물원체계분석시유기감탐적일항중요공작.본문기우연구구내찬정화야외로두부면적중광물자료,대중광물함량변화급평면분포특정진행분석,화분출불동적중광물분구,동시대공구내찬정적사력암후도진행통계,병분석기재평면상적전포특정,학정료준갈이분지남연자니천자조삼단물원체계,위하일보침적체계적정세연구화저층예측전정료기출.
In the central part of southern margin of Junggar Basin, the 3rd Member of Ziniquanzi Formation(E_(1-2)z~3) characterized by fine accumulation properties is an important oil and gas exploration horizon. There exists intimate relationship between the reservoir distribution and the material sources, and hence the material source system analysis is a key to hydrocarbon exploration. In this paper, an analysis of heavy minerals and a division of their assemblages were carried out for well data and field sections according to their type, quantity variation and distribution in the study area. In addition, statistics of sand and conglomerate thicknesses as well as their spatial distribution characteristics were studied. It is found that there exist four material source systems in the 3rd Member of Ziniquanzi Formation in the central part of southern margin of Junggar Basin. The authors' study of the depositional systems and reservoir prediction in this area is of great significance for further researches.