Lithologic Reservoirs >

2007 , Vol. 19 >Issue 4: 45 - 50

DOI: https://doi.org/10.3969/j.issn.1673-8926.2007.04.008

Influencing factors and characteristics of Chang 6 reservoir in Wuqi area, Ordos Basin

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  • 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China;
    2. Research Institute of Petroleum Exploration and Development, Changqing Oilfield Company, PetroChina, Xi’an 710021, China

Online published: 2007-12-15

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Abstract

Based on the analysis of cast slice and petrophysics, the petrology characteristics, porosity and permeability, pore structure and pore types of Chang 6 reservoir in Wuqi area are studied, and its influencing factors are analyzed. The result shows that Chang 6 reservoir is characterized by low mineral maturity and high structure maturity, medium porosity and low permeability with intergranular pore and solution pore developed well. Medium pore and small pore are the main reservoir space. Fine throat and middle throat are the basic seepage passage. The reservoir property is closely related to both sedimentary microfacies and diagenesis. It is affected by sedimentary facies belt on plane, and made poor by compaction and cementation in vertical direction, however, improved by secondary pores caused by dissolution.

Cite this article

WEI Qinlian, ZHENG Rongcai, XIAO Ling,WANG Chengyu, NIU Xiaobing . Influencing factors and characteristics of Chang 6 reservoir in Wuqi area, Ordos Basin[J]. Lithologic Reservoirs, 2007 , 19(4) : 45 -50 . DOI: 10.3969/j.issn.1673-8926.2007.04.008

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