DIAGENETIC DEUTEROGENIC CHANGE!N MAOKOU FORMATION OF PERMIAN OF WELL MILE NO。87IN DAZU COUNTY，SICHUAN, AND ITS INFLUENCE ON RESERVOIR CHARACTERISTICS

doi:10.3863/j.issn.1000-2634.1989.03.003

西南石油大学学报(自然科学版) ›› 1989, Vol. 11 ›› Issue (3): 23-29.DOI: 10.3863/j.issn.1000-2634.1989.03.003

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DIAGENETIC DEUTEROGENIC CHANGE!N MAOKOU FORMATION OF PERMIAN OF WELL MILE NO。87IN DAZU COUNTY，SICHUAN, AND ITS INFLUENCE ON RESERVOIR CHARACTERISTICS

Zhou Long-feng

(The Second Oil Exploration Team)

Received:1988-08-31 Revised:1900-01-01 Online:1989-08-20 Published:1989-08-20
Contact: Zhou Long-feng

Abstract

Abstract: In Maokou formation of Permian exist the main gas reservoirs in Sich-
uan basin The factors controlling the reservoir characteristics are and complex. In this paper, we mainly discuss the diagenesis of well many Mile No, 87 in Dazu county in order to recognize the accumulation laws of gas reservoirs
By studying the cores and thin sections, we know that the main destr-
uctive factors for reservoirs are cementation, compaction, pressure solution
early stage destructive recrystal-lization and silicification; and that the
constructive factors for reservoirs are solubilization, dolomization，late
stage recrystallization and structure fractures,
Author suggests that in the exploration in Maokou formation more
attention be paid to the pore-fracture pattern gas reservoirs.

Key words: Diagenesis, Reservoir characteristics, Maokou Fprmation of Permian

Zhou Long-feng. DIAGENETIC DEUTEROGENIC CHANGE!N MAOKOU FORMATION OF PERMIAN OF WELL MILE NO。87IN DAZU COUNTY，SICHUAN, AND ITS INFLUENCE ON RESERVOIR CHARACTERISTICS[J]. 西南石油大学学报(自然科学版), 1989, 11(3): 23-29.

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DIAGENETIC DEUTEROGENIC CHANGE!N MAOKOU FORMATION OF PERMIAN OF WELL MILE NO。87IN DAZU COUNTY，SICHUAN, AND ITS INFLUENCE ON RESERVOIR CHARACTERISTICS

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