Characteristics of Fan Delta in Triassic Karamay Formation, Northwest Margin of Junggar Basin:Taking W16 Well Area As an Example

WU   Zhi-Xiong, YANG  Zhao-Chen, DING  Chao, SHI  Ji-An, ZHANG  Shun-Cun, ZHANG  Jie

doi:10.11764/j.issn.1672-1926.2011.04.602

2011 , Vol. 22 >Issue 4: 602 - 609

DOI: https://doi.org/10.11764/j.issn.1672-1926.2011.04.602

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Characteristics of Fan Delta in Triassic Karamay Formation, Northwest Margin of Junggar Basin:Taking W16 Well Area As an Example

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1.Key Laboratory of Petroleum Resources Research，Institute of Geology and Geophysics，
Chinese Academy of Sciences,Lanzhou 730000,China;
2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China；
3.Fengcheng Oil Field Operation District,PetroChina Xinjiang Oilfield Company,Karamay 834000,China

Received date: 2011-03-10

Revised date: 2011-05-11

Online published: 2011-08-10

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Abstract

The Triassic sedimentary facies of well W16 in northwest margin of Junggar basin are studied by core observation,thin section analysis,and mud logging and well logging data.Results indicate that fan delta front sub-facies is the main sedimentary system of Karamay Formation in W16 well area.The underwater distributary channel deposit and underwater inter\|distributary deposit are main sedimentary microfacies in the studied area.The underwater distributary channel deposit is the main reservoir sand.Analyses of the evolution and the distribution of the microfacies in beds suggest that the accumulation of oil and gas is controlled by microfacies,and the underwater distributary channel deposit is the major oil and gas accumulation of Karamay Formation.

Key words： Junggar basin; Karamay Formation; Sedimentary micro-facies; Triassic.

Cite this article

WU Zhi-Xiong, YANG Zhao-Chen, DING Chao, SHI Ji-An, ZHANG Shun-Cun, ZHANG Jie . Characteristics of Fan Delta in Triassic Karamay Formation, Northwest Margin of Junggar Basin:Taking W16 Well Area As an Example[J]. Natural Gas Geoscience, 2011 , 22(4) : 602 -609 . DOI: 10.11764/j.issn.1672-1926.2011.04.602

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