Distribution patterns of tight reservoirs in eastern Sulige Gas Field, Ordos Basin

  • LU Xuejun ,
  • GAO Ping ,
  • DING Xiujian ,
  • CHEN Zhelong ,
  • LIU Guangdi
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  • 1. China University of Petroleum, Beijing 102249, China; 2. Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi’an 710021, China

Online published: 2014-06-06

Abstract

Sulige Gas Field is a typical tight gas reservoir in China. There are some controversies in research conclusion of sedimentation types and diagenesis process. According to the core data, this paper studied the general geological characteristics of tight sand reservoir, illuminated the differences of reservoir properties from two aspects of sedimentation and diagenesis, and pointed out that strong compaction, ferroan calcite replacement and siliceous cementation are the main factors for reservoir densification. Based on the analysis of sedimentary microfacies, it is defined that distributary channel sand body is high quality reservoir in eastern Sulige Gas Field, and four kinds of vertical combination models and three kinds of lateral contact models of single sand body for the delta plain distributive channel were established.

Cite this article

LU Xuejun , GAO Ping , DING Xiujian , CHEN Zhelong , LIU Guangdi . Distribution patterns of tight reservoirs in eastern Sulige Gas Field, Ordos Basin[J]. Lithologic Reservoirs, 2014 , 26(3) : 1 -6 . DOI: 10.3969/j.issn.1673-8926.2014.03.001

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