Reservoir Features and Physical Influences of the Sinian Dengying Formation（Sinian） in Central Sichuan, China

ZHOU Zheng,WANG Xing-zhi,XIE Ling,MO Jing,ZHANG Jie

doi:10.11764/j.issn.1672-1926.2014.05.701

Natural Gas Geoscience >

2014 , Vol. 25 >Issue 5: 701 - 708

DOI: https://doi.org/10.11764/j.issn.1672-1926.2014.05.701

Reservoir Features and Physical Influences of the Sinian Dengying Formation（Sinian） in Central Sichuan, China

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1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University, Chengdu 610500 China; 2.Department of Geology and Environment,Xi′an University of
Science and Technology, Xi′an 710054,China; 3.Sichuan Province Key Laboratory of Natural Gas Geology,Southwest Petroleum University, Chengdu 610500,China;
4.Dapartment of Energy Science and Engineering, Xi′an University of Science and Technology, Xi′an 710054,China

Received date: 2013-05-21

Revised date: 2013-12-26

Online published: 2014-05-10

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Abstract

The reservoir characteristics of Dengying Formation (Sinian) in central Sichuan Basin were studied from petrology,reservoir space types and characteristics and physical property based on drilling data,macroscopic and microscopic observation.Factors affecting physical properties were also discussed from sedimentary facies,diagenesis and tectonic movement.The rock types are mainly dolomite and breccia,the reservoir spaces are secondary pores,caves and fractures,the reservoir is fracture-pore type with low porosity and low permeability and the beach subfacies have the best physical property.Compaction,cementation,filling and silicification are the destructive diagenesis.Recrystallization and dissolution are beneficial for physical properties.Fractures formed by tectonic movement greatly improve the reservoir permeability.

Key words： The central Sichuan; Dengying Formation; Reservoir characteristic; Physical property; Factors of influence

Cite this article

ZHOU Zheng,WANG Xing-zhi,XIE Ling,MO Jing,ZHANG Jie . Reservoir Features and Physical Influences of the Sinian Dengying Formation（Sinian） in Central Sichuan, China[J]. Natural Gas Geoscience, 2014 , 25(5) : 701 -708 . DOI: 10.11764/j.issn.1672-1926.2014.05.701

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