Lithologic Reservoirs >

2008 , Vol. 20 >Issue 4: 80 - 85

DOI: https://doi.org/10.3969/j.issn.1673-8926.2008.04.015

Gas reservoir characteristics of Permian Changxing Formation in Maobachang structure

  • SUN Hongbin ,
  • ZHANG Fenglian
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  • 1. Research Institute of Exploration and Development， Southwest Branch， Sinopec， Guiyang 550001， China； 2. Overseas-Project Department， Downhole Operation Company of Greatwall Drilling Engineering Company， Panjin 124107， China

Online published: 2008-12-15

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Abstract

The characteristics of structure, fault, sedimentary facies, four properties, gas component, calculation of reserves and gas reservoir types of Permian Changxing Formation of Maobachang structure in Daxian-Xuanhan area in northeastern Sichuan are analyzed. It is believed that the reservoir of Permian Changxing Formation in Maobachang structure is organic reef. The reservoir is mainly controlled by sedimentary facies, diagenesis and tectonism. According to the gas component analysis and calculation of reserves, the gas reservoir is characterized by a medium-small gas reservoir with rich CH4 , high component of CO2 , low temperature, high pressure and low abundance.

Key words： depression; reservoir; sedimentation; diagenesis; pore; fault basin

Cite this article

SUN Hongbin , ZHANG Fenglian . Gas reservoir characteristics of Permian Changxing Formation in Maobachang structure[J]. Lithologic Reservoirs, 2008 , 20(4) : 80 -85 . DOI: 10.3969/j.issn.1673-8926.2008.04.015

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