SEDIMENTARY MICROFACIES FEATURE AND THE RESERVOIR PERMEABILITY UNITS IN CARBONIFEROUS，SHAGUANPING，EASTERN SICHUAN

doi:10.3863/j.issn.1674-5086.2010.01.035

西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (1): 170-174.DOI: 10.3863/j.issn.1674-5086.2010.01.035

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SEDIMENTARY MICROFACIES FEATURE AND THE RESERVOIR PERMEABILITY UNITS IN CARBONIFEROUS，SHAGUANPING，EASTERN SICHUAN

XU Guo-sheng1;WANG De-bin1;WANG Qing-peng2;ZHOU Lian-de3;ZHANG Rui1

1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploration，Chengdu University of Technology，Chengdu Sichuan 610059，China；2.No.7 Oil Extraction Plant，Daqing Oilfield，CNPC，Daqing Heilongjiang 163517，China；3.Tianjin Exploration and Development Research Institute，CNOOC，Tianjin 300452，China

Received:2009-02-23 Revised:1900-01-01 Online:2010-02-20 Published:2010-02-20
Contact: XU Guo-sheng

Abstract

Abstract:

The Carboniferous gas reservoir is the key one in Shaguanping gas field，eastern Sichuan，it belongs to fractureporetyped gas reservoir.It is critically important to divide reservoir units that study systematically the internal texture，spatial allocation and sedimentary facies model of Huanglong Formation and identify the distribution law of the units.Based on the data of geology，well logging and thin sections，by using sedimentary system analysis，lithologic facies association and sedimentary environment of Huanglong Formation are studied in detail，three subfacies and eight microfacies are figured out，all the sedimentary features and conditions of the subfacies are researched.The reservoir permeability units in Carboniferous gas reservoirs are grouped into highmedium permeable zones and low permeable zone，in general，the units appear “high

permeability internally and low permeability marginally”.The division provides scientific reference for middlelate period development.

Key words: carbonate rock, sedimentary facies, reservoir and permeability units, Carboniferous, eastern Sichuan area, lithologic facies association

CLC Number:

TE122.2

XU Guo-sheng;WANG De-bin;WANG Qing-peng;ZHOU Lian-de;ZHANG Rui. SEDIMENTARY MICROFACIES FEATURE AND THE RESERVOIR PERMEABILITY UNITS IN CARBONIFEROUS，SHAGUANPING，EASTERN SICHUAN[J]. 西南石油大学学报(自然科学版), 2010, 32 (1): 170-174.

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SEDIMENTARY MICROFACIES FEATURE AND THE RESERVOIR PERMEABILITY UNITS IN CARBONIFEROUS，SHAGUANPING，EASTERN SICHUAN

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