Reservoir characteristics and diagenetic facies of Chang 63 sub-member in Huaqing area, Ordos Basin

  • FU Guang ,
  • LI Zhixin
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  • 1. National Engineering Laboratory for Exploration and Development of Low-Permeability Oil & Gas Fields, Xi’an 710018, China; 2. Research Institute of Exploration and Development, Changqing Oilfield Company, PetroChina, Xi’an 710018, China

Online published: 2011-08-20

Abstract

The debris flowchannel deposits of sublacustrine fan of Chang   63  sub-member in Huaqing area, Ordos Basin are fromdifferent provenances, which could be divided into three parts, including the dominant northeast and southwest sources, and the minor mixed source. Based on the composition, diagenesis, and the differences and zones of plane diagenetic facies distribution ofChang   63  sandstone reservoir, it is determined that the provenances are the main factors that control the reservoir distribution. The chlorite cementation-intergranular pore diagenetic facies controlled by northeast provenance and the chlorite cementation-intergranular pore and feldspar dissolution diagenetic facies controlled by the western mixed source are the most favorable depositional-diagenetic facies zones. The research results can provide references for reservoir evaluation and development in Huaqing area.

Cite this article

FU Guang , LI Zhixin . Reservoir characteristics and diagenetic facies of Chang 63 sub-member in Huaqing area, Ordos Basin[J]. Lithologic Reservoirs, 2011 , 23(4) : 53 -57 . DOI: 10.3969/j.issn.1673-8926.2011.04.010

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