Analysis of main controlling factors of Chang 6 reservoir in West Panguliang area, Ordos Basin

  • ZHOU Lihong ,
  • XIAO Dunqing ,
  • PU Xiugang ,
  • LI Hongxiang
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  • 1. Department of Geology, Northwest University, Xi’an 710069, China; 2. Institute of Petroleum Exploration and Development, Changqing Oilfield Branch Company, Xi’an 710018, China

Online published: 2009-12-16

Abstract

Based on the analysis of lithological characteristics, porosity and permeability characteristics, micro- pore structure characteristics and types of Chang 6 reservoir in West Panguliang area, the results showthat the sedimentary environment of Chang 6 reservoir is a delta front. Reservoir characteristics take on lower compositional maturity and medium textual maturity. The reservoir space types include residual intergranular pores, secondary corrosion pores, moldic pores and so on. The sedimentary microfacies, diagenesis and heterogeneity are main control factors for the reservoir properties. The diagenetic period of affecting reservoir development is stage A-B of middle diagenesis. And the gain-coating chlorite facies, feldspar corrosion facies and laumonite corrosion facies are favorable diagenetic facies belts for reservoir development. Five oil displacement types are distinguished by studying reservoir microscopic heterogeneity.

Cite this article

ZHOU Lihong , XIAO Dunqing , PU Xiugang , LI Hongxiang . Analysis of main controlling factors of Chang 6 reservoir in West Panguliang area, Ordos Basin[J]. Lithologic Reservoirs, 2009 , 21(4) : 47 -52 . DOI: 10.3969/j.issn.1673-8926.2009.04.009

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