Characteristics and Formation Deep Clastic Reservoir in Binhai Area of Qikou Sag
Received date: 2010-03-07
Revised date: 2010-05-27
Online published: 2010-08-10
In this paper we discuss the characteristic and formation of deep clastic reservoir in the Binhai area of Qikou sag by means of integration of data of physical property and pore structure, thin section, epoxy resin-impregnated thin sections, SEM and X-ray. The result shows that the deep clastic reservoir is low-middle porosity and micro-low permeability, and the reservoir quality of Es1 is better than that of Es3. Meanwhile, there is a vertical zonal distribution of porosity for deep clastic reservoir, with secondary pore zone. The physical property of deep clastic reservoir is constrained by sedimentary facies, diagenesis and abnormal pressure function, and the constructive dissolution is a main factor of controlling the secondary pore. Additionally, the occurrence of fractures does the reservoir reconstruction.
Key words： Deep layers; Clastic rock; Reservoir; Property; Diagenesis; Qikou sag.
WANG Shu-Xiang, YU Xue-Min, HE Yong-Mei, JIANG Wen-ya . Characteristics and Formation Deep Clastic Reservoir in Binhai Area of Qikou Sag[J]. Natural Gas Geoscience, 2010 , 21(4) : 566 -571 . DOI: 10.11764/j.issn.1672-1926.2010.04.566
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