毛坝场构造二叠系长兴组气藏特征

doi:10.3969/j.issn.1673-8926.2008.04.015

Lithologic Reservoirs ›› 2008, Vol. 20 ›› Issue (4): 80-85.doi: 10.3969/j.issn.1673-8926.2008.04.015

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Gas reservoir characteristics of Permian Changxing Formation in Maobachang structure

LIN Hui¹，ZHOU Kai²

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:2008-12-15 Published:2008-12-15

Abstract

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

LIN Hui，ZHOU Kai. Gas reservoir characteristics of Permian Changxing Formation in Maobachang structure[J].Lithologic Reservoirs, 2008, 20(4): 80-85.

References

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