岩性油气藏 ›› 2017, Vol. 29 ›› Issue (5): 55–66.doi: 10.3969/j.issn.1673-8926.2017.05.007

• 油气地质 • 上一篇    下一篇

北部湾盆地WZA区流一上亚段源-汇分析及沉积相展布

张辉1, 吴子瑾2, 周伟1, 于兴河2, 孙乐2, 胡勇2, 谭程鹏2   

  1. 1. 中海油(中国)有限公司湛江分公司, 广东 湛江 524057;
    2. 中国地质大学(北京)能源学院, 北京 100083
  • 收稿日期:2017-02-16 修回日期:2017-04-06 出版日期:2017-09-21 发布日期:2017-09-21
  • 作者简介:张辉(1979-),男,高级工程师,主要从事油气田早期评价、油气田开发评价工作。地址:(524057)广东省湛江市坡头区22号。Email:zhanghui4@cnooc.com.cn。
  • 基金资助:
    国家“十三五”重大科技专项子课题“中国近海富烃凹陷优选与有利勘探方向预测”（编号：2016ZX05024-002-002）资助

Source-sink analysis and sedimentary facies of the first member of Liushagang Formation in WZA area,Beibuwan Basin

ZHANG Hui1, WU Zijin2, ZHOUWei1, YU Xinghe2, SUN Le2, HU Yong2, TAN Chengpeng2   

  1. 1. Zhanjiang Branch, CNOOC Ltd., Zhanjiang 524057, Guangdong, China;
    2. School of Energy Resources, China University of Geosciences, Beijing 100083, China
  • Received:2017-02-16 Revised:2017-04-06 Online:2017-09-21 Published:2017-09-21

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摘要： 涠西南凹陷WZA区主要目的层流沙港组一段沉积体系类型及相应的展布规律认识不清，砂体的连续性和对比性均较差，给油气勘探带来了困难。结合岩心、测井和地震资料，通过源-汇分析确定沉积体系和沉积微相类型。WZA区为中间低、四周高的汇水区，可识别出3个不同方向的物源（NWW向、SWW向、SEE向）、2种沉积体系（西部和南部发育曲流河三角洲沉积体系，东部发育浊积扇沉积体系）和10余种沉积微相。这些认识有利于刻画WZA油田，WZB油田，WZC油田，WZD油田和WZE油田的“甜点”储层。

关键词: 清洁压裂液返排液, 再利用, 性能评价, 驱油潜力, 驱油机理

Abstract: There is no clear understanding of the types and distribution of sedimentary system of the first member of Liushagang Formation,which is major oil exploration target in WZA area of Weixinan Sag,Beibuwan Basin. It is difficult to correlation of continuity of sand bodies for further oil exploration. Combined with core,logging and seismic data,sedimentary system and sedimentary microfacies types were determined by the method of source-sink analysis. Three provenances,two types of sedimentary system and over ten types of sedimentary microfacies are identified in WZA area. The WZA is a catchment area around three provenances from direction of NWW,SWW and SEE. The meandering river delta sedimentary system developed in western and southern WZA, and turbidite fan sedimentary system developed in eastern WZA. The result is helpful for sweet reservoir characterization in oilfields of WZA,WZB,WZC,WZD and WZE.

Key words: clean fracturing flowback fluid, reutilization, performance evaluation, oil displacement potential, diaplacement mechanism

中图分类号: 

  • TE121.3
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