|Table of Contents|

Reservoir Feature of Oil Bearing Chang-2 Bed in the Zhongshanchuan Area of Wayaobao Oilfield in Ordos Basin(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2009年第04期
Page:
388-393
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Reservoir Feature of Oil Bearing Chang-2 Bed in the Zhongshanchuan Area of Wayaobao Oilfield in Ordos Basin
Author(s):
LI Xu-fen1;  LIU Jian-chao1;  MI Nai-zhe2;  MIAO Qing3;  LI Lei3;  ZHANG Hai-dong1
(1.School of Earth Sciences and Resources, Chang'an University, Xi'an 710054, Shaanxi, China; 2.Research Institute of Shaanxi Yanchang Petroleum Group Corporation, Xi'an 710061, Shaanxi,China; 3.Zhongyuan Oilfield Company, China Petroleum and Chemical Corporation, Puyang 457001, Henan, China)
Keywords:
Wayaobao oilfield;  oil bearing Chang-2 bed;  structure of pore;  reservoir feature
PACS:
TE122.2+3
DOI:
-
Abstract:
Based on analysis of the depositional features of Chang-2 reservoir bed, the characteristics of lithology, diagenism, pore throat texture, physical property and its affecting factors are studied by intrusive mercury experiment, thin section determination, physical property test and scanning electron microscope observation. The result is that the components of Chang-2 reservoirs is mainly grayish and celadon fine sandstone, the combination type of pore throats is mainly residual intergranular porosity, next intergranular dissolve porosity and intergranular micro-fine throats, and few mould porosity, mica fuse corrode crevice and micro-crevice. The distribution type of pore throats may be classified into normal distribution of pore throat type with single apex, separation of pore throat type with apexes and negative distribution of micro-pore throat type with single apex. Affecting factors of reservoir are sedimentary facies, diagenesis and crevice change, and the main factors are sedimentary facies and diagenesis.

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Last Update: 2009-12-20