Optimization of Favorable Reservoir-Caprock Assemblages of Middle-Upper Permian in Mahu Sag, Junggar Basin

Abstract

Abstract: This paper presents the sequence stratigraphic classification of single well of the Middle-Upper Permian in slope area surrounding Mahu sag of Junggar basin, and the sequence stratigraphic correlation of well logging and seismic profile, dividing the Xiazijie formation, the lower Wuerhe formationtion and the upper Wuerhe formation into two second-order sequences and six third-order sequences, and recognizes the thick glutenite reservoirs of the middle-lower part of Xiazijie formation, the lower and upper parts of lower Wuerhe formationtion, and upper Wuerhe formation, as well as three regional caprocks in the upper part of Xiazijie formation, the middle part of lower Wuerhe formationtion and the top of upper Wuerhe formation, by which three favorable reservoir-caprock assemblages are given. The middle and lower assemblages are controlled by low stand system tract’s slope break belt, and dominated by lithologic and structural-lithologic reservoirs;; the upper one is controlled by large-scale unconformities of the Permian-Triassic and the lower Wuerhe formationtion-upper Wuerhe formation, and dominated by stratigraphic reservoir which is characterized by relatively shallow burial, matching well with oil source faults and high efficient petroleum transport system, it could be an important area for the recent hydrocarbon exploration.

Key words: Junggar basin, Mahu sag, Permian, sequence stratigraphy, reservoir-caprock assemblage

YANG Fan, WEI Yanzhao, Abulimiti, CHEN Gangqiang, BIAN Baoli. Optimization of Favorable Reservoir-Caprock Assemblages of Middle-Upper Permian in Mahu Sag, Junggar Basin[J]. Xinjiang Petroleum Geology, 2016, 37(zk(English) ): 1-7.

References

[1] LEI Dewen,Abulimiti,TANG Yong,et al.Controlling factors and occurrence prediction of high oil-gas production zones in Lower Trias-sic Baikouquan formation of Mahu sag in Junggar basin[J].Xinjiang Petroleum Geology,2014,35(5):495-499.
[2] LEI Dewen,QU Jianhua,AN Zhiyuan,et al.Hydrocarbon accumula-tion conditions and enrichment regularity of low-permeability glutenite reservoirs of Baikouquan formation in Mahu sag,Junggar basin[J].Xinjiang Petroleum Geology,2015,36(6):642-647.
[3] WANG Huimin,WU Hua,JIN Tao,et al.Rule of hydrocarbon accumulation in the northwest edge of Junggar basin[J].Xinjiang Geology,2005,23(3):278-282.
[4] TAO Guoliang,HU Wenxuan,ZHANG Yijie,et al.NW-trending transverse faults and hydrocarbon accumulation in the northwestern margin of Junggar basin[J].Acta Petrolei Sinica,2006,27(4):23-28.
[5] KUANG Jun,QI Xuefeng.The structural characteristics and oil-gas explorative direction in Junggar foreland basin[J].Xinjiang Petroleum Geology,2006,27(1):5-9.
[6] CHEN Gangqiang,AN Zhiyuan,ABULIMITI,et al.Petroleum exploration prospects of Carboniferous-Permian in peripheral Mahu sag,Junggar basin[J].Xinjiang Petroleum Geology,2014,35(3):259-263.
[7] KUANG Lichun,LÜHuantong,QI Xuefeng,et al.Exploration and targets for lithologic reservoirs in Junggar basin,NW China[J].Petroleum Exploration and Development,2005,32(6):32-37.
[8] KUANG Lichun,TANG Yong,LEI Dewen,et al.Exploration of fan controlled large-area lithologic oil reservoirs of Triassic Baikouquan formation in slope zone of Mahu sag in Junggar basin[J].China Petroleum Exploration,2014,19(6):14-23.
[9] CAO Jian,HU Wenxuan,YAO Suping,et al.Evolution of petroleum migration and accumulation in the northwestern margin of the Junggar basin:fluid inclusion geochemistry[J].Geological Review,2006,52(5):700-707.
[10] LEI Dewen,LÜHuantong,LIU Zhenyu,et al.Prediction of alluvial fan reservoir on slope in northwestern margin of Junggar basin[J].Xinjiang Petroleum Geology,1998,19(6):470-472.
[11] YU Yuanjiang,LI Desheng,HU Suyun,et al.Fans sedimentation and exploration direction of fan hydrocarbon reservoirs in foreland thrust belt of the northwestern Junggar basin[J].Acta Geoscientica Sinica,2007,28(1):62-71.
[12] LI Bing,DANG Yufang,JIA Chunming,et al.Sedimentary facies of Permian clastic rocks in Zhongguai-Wuba area in northwestern margin of Junggar basin[J].Natural Gas Geoscience,2011,22(3):432-439.
[13] CHEN Shuping,KUANG Jun,LIU Jishan,et al.Major unconformities and their dynamic conditions in Ke-Bai area,northwestern margin of Junggar basin[J].Geological Journal of China Universities,2008,14(2):199-205.

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