CHARACTERISTICS AND COMPREHENSIVE EVALUATION OF CHANG 3<sub>1</sub> RESERVOIRS OF YANCHANG GROUP IN SHISHE AREA, ORDOS BASIN

YU Yamin; WEN Zhigang

2017 Vol. 23, No. 4

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YU Yamin, WEN Zhigang. CHARACTERISTICS AND COMPREHENSIVE EVALUATION OF CHANG 31 RESERVOIRS OF YANCHANG GROUP IN SHISHE AREA, ORDOS BASIN[J]. Journal of Geomechanics, 2017, 23(4): 577-584.

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YU Yamin, WEN Zhigang. CHARACTERISTICS AND COMPREHENSIVE EVALUATION OF CHANG 3₁ RESERVOIRS OF YANCHANG GROUP IN SHISHE AREA, ORDOS BASIN[J]. Journal of Geomechanics, 2017, 23(4): 577-584.

CHARACTERISTICS AND COMPREHENSIVE EVALUATION OF CHANG 3₁ RESERVOIRS OF YANCHANG GROUP IN SHISHE AREA, ORDOS BASIN

YU Yamin^1,2,,
WEN Zhigang^1,2, ,

1.
Key Laboratory of Oil and Gas Resources and Exploration Technology, Ministry of Education, Yangtze University, Wuhan 430100, Hubei, China
2.
College of Resources and Environment, Yangtze University, Wuhan 430100, Hubei, China

More Information

Corresponding author: WEN Zhigang, wzg728@sina.com

Received Date: 26 May 2017

Publish Date: 25 August 2017

Abstract

Abstract

Based on the data of rock thin sections, casting thin sections, physical property analysis and intrusive mercury curves, the characteristics of Chang 3₁ reservoirs of Yanchang group in Shishe area of Ordos Basin were studied. The results show that the reservoirs of Chang 3₁ in Shishe area are mainly composed of feldspar lithic sandstone and lithic feldspar sandstone, belonging to low-ultra low porosity and low-ultra low permeability reservoir. The main pore types are intergranular pore and feldspar dissolved pore. The distribution of reservoirs is mainly controlled by sedimentary facies and the diagenesis afterwards also affects the reservoir properties. According to the evaluation criterion, the reservoirs of the study area can be divided into three types. Chang 3₁ reservoir group in Shishe area mainly are type Ⅰ reservoir and type Ⅱ reservoir.
- Shishe area /
- Chang 3₁ reservoirs /
- reservoir characteristics /
- classification evaluation

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References

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