准噶尔盆地西北缘三叠系克拉玛依组扇三角洲沉积微相特征&mdash;&mdash;以W16井区为例

吴志雄, 杨兆臣, 丁超, 史基安, 张顺存, 张杰

doi:10.11764/j.issn.1672-1926.2011.04.602

天然气地球科学 >

2011 , Vol. 22 >Issue 4: 602 - 609

DOI: https://doi.org/10.11764/j.issn.1672-1926.2011.04.602

天然气地质学

准噶尔盆地西北缘三叠系克拉玛依组扇三角洲沉积微相特征——以W16井区为例

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1.中国科学院油气资源研究重点实验室，甘肃兰州 730000；
2.中国科学院研究生院，北京 100049；
3.新疆油田公司风城油田作业区，新疆克拉玛依 834000

吴志雄(1984-)，男，四川绵阳人，博士研究生，主要从事储层地质学与储层地球化学研究.

收稿日期: 2011-03-10

修回日期: 2011-05-11

网络出版日期: 2011-08-10

基金资助

国家重点基础研究发展计划(“973”)项目（编号：2011CB201104)资助.

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Characteristics of Fan Delta in Triassic Karamay Formation, Northwest Margin of Junggar Basin:Taking W16 Well Area As an Example

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1.Key Laboratory of Petroleum Resources Research，Institute of Geology and Geophysics，
Chinese Academy of Sciences,Lanzhou 730000,China;
2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China；
3.Fengcheng Oil Field Operation District,PetroChina Xinjiang Oilfield Company,Karamay 834000,China

Received date: 2011-03-10

Revised date: 2011-05-11

Online published: 2011-08-10

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摘要

通过岩心观察、薄片分析、测井和录井资料分析，对准噶尔盆地西北缘W16井区三叠系沉积相进行了精细的研究。结果表明：W16井区克拉玛依组主要为扇三角洲前缘亚相沉积，发育的微相主要为水下分流河道、分流河道间微相，且湖进—湖退变化迅速。水下分流河道砂体为骨架储集砂体。同时，对克拉玛依组各个小层沉积微相的时空展布特点进行了分析，认为沉积微相对油气聚集具有明显的控制作用，水下分流河道微相砂体是克拉玛依组主要的油气聚集层，该项研究成果不仅为该区油藏储量计算提供了依据，而且为该油田的开发提供了储集砂体骨架分布的基础图件。

关键词： 准噶尔盆地; 克拉玛依组; 沉积微相; 三叠系

本文引用格式

吴志雄, 杨兆臣, 丁超, 史基安, 张顺存, 张杰 . 准噶尔盆地西北缘三叠系克拉玛依组扇三角洲沉积微相特征——以W16井区为例[J]. 天然气地球科学, 2011 , 22(4) : 602 -609 . DOI: 10.11764/j.issn.1672-1926.2011.04.602

Abstract

The Triassic sedimentary facies of well W16 in northwest margin of Junggar basin are studied by core observation,thin section analysis,and mud logging and well logging data.Results indicate that fan delta front sub-facies is the main sedimentary system of Karamay Formation in W16 well area.The underwater distributary channel deposit and underwater inter\|distributary deposit are main sedimentary microfacies in the studied area.The underwater distributary channel deposit is the main reservoir sand.Analyses of the evolution and the distribution of the microfacies in beds suggest that the accumulation of oil and gas is controlled by microfacies,and the underwater distributary channel deposit is the major oil and gas accumulation of Karamay Formation.

Key words： Junggar basin; Karamay Formation; Sedimentary micro-facies; Triassic.

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