松辽盆地大情字井地区高台子油层储集层孔隙结构的微观特征

doi:10.11743/ogg20060512

Abstract

Abstract:

Rock pore structure is a main factor affecting oil and gas recovery and fluid(oil,gas and water)storage capacity of reservoirs.Therefore,understanding the features of pore structure is crucial for improving productivity and recovery factor.The pore structure in Gaotaizi oil layer of low permeability in the Lower Cretaceous Qingshankou Formation in Daqingzijing area are studied comprehensively by utilizing several analytical methods such as core,cast thin section and petrographic images,especially laser scanning confocal microscopic 3-D image. Three topics concerning the issue are discussed here:(1)relationship between porosity and permeability;(2)influence of pore structure upon porosity and permeability;and(3)factors affecting the capacity of a reservoir.

Key words: pore structure, images analysis, control factor, reservoir evaluation, reservoir of low permeability, Gaotaizi oil layer, the Songliao Basin

CLC Number:

TE112.2

Zhang Dawei, Chen Fajing, Cheng Gang. The microscopic features of pore structure in Gaotaizi oil layer of Daqingzijing area[J]. Oil & Gas Geology, 2006, 27(5): 668-674.

References

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The microscopic features of pore structure in Gaotaizi oil layer of Daqingzijing area

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