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Influence of Quan 4 Formation Sandstone Diagenesis on  Reservoir Properties in Longxi Region, Songliao Basin

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  • 1. School of Resources and Environment, Southwest Petroleum University, Chengdu 610500, China;
    2. School of Earth Resources and Information, China University of Petroleum, Dongying 257061, China;
    3. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;
    4. Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing 163712, China

Received date: 2009-02-19

  Revised date: 2009-05-15

  Online published: 2009-10-10

Abstract

      Based on the analysis of rock slides, casting slides, scan electron microscope and X\|ray diffraction etc, the characteristics of diagenetic evolution of clastic sandstone in Quan 4 Formation at Longxi region, Songliao basin are studied. The diagenesis in Quan 4 Formation is in the mesogenetic stage, and is subdivided as A1 and A2 stages. Four types of diagenesis are recognized, including compaction, cementation, dissolution and metasomatism. The compaction and cementation destroy the primary pore structure intensively, and dissolution betters the pore structure effectively. Secondary porosity zones are developed in 1600~2000 meters.

Cite this article

LIAN Cheng-Bei, ZHONG Jian-Hua, YANG Yu-Fang, JU Fang, YANG Jun- . Influence of Quan 4 Formation Sandstone Diagenesis on  Reservoir Properties in Longxi Region, Songliao Basin[J]. Natural Gas Geoscience, 2009 , 20(5) : 691 -694 . DOI: 10.11764/j.issn.1672-1926.2009.05.691

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