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《NATURAL GAS INDUSTRY》 1997-02
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ANALYSIS OF RESERVOIR FORMING MECHANISM OF HIGH HE POOL IN THE CARBONIFERIOUS OF XIAOHAIZI FORMATION OF BASHITOU STRUCTURE

Chang Xinghao(Geological Engineering Institute of the Fifth Survey Team of Geology and Mineral Resource Ministry),Song Kai:  
Located on Maigaiti slope of the southwest depress in Talimu Basin,Bashituo structure is an anticline caused by antithetic drag of the faults in Bashituo—Xianbazha structural belt.About 10 exploration wells drilled in the structure are of various oil gas showing.Commercial gas stream is obtained from the Carboniferous Xiaohazi Formation in Mai 3 and Mai 4 wells at the top of the structure,indicating that it is a favourable gas bearing structure.Analysis of oil and gas samples showes that Xiaohaizi gas pool is a gas condensate reservoir with He 0 68%~0 73%,crude oil density 0.776 3 g/cm 3,GOR 4 286 m 3/m 3.geochemical and petrophysical data and production data as well as the structural evolution analysis indicate that Bashituo structure has a favourable source reservoir cap assemblage,sufficient oil source and structural conditions.Xiaohaizi gas reservoir with high N and high He is related to the great invasion and eruption of basic magma created by teanstensional fracturing deeply culling through the earth crust.The He released from magma is entrapped and preserved in gas reservoir,and faults act as the migration pathway for gases.
【CateGory Index】: P618.13
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【Citations】
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【Co-citations】
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1 XIAO Qiu-sheng, CHEN Feng-liang, YAN Yuan-feng, LOU Guo-quan (Institute ofGeological Sciences, Jiangsu Oilfield Branch of SINOPEC, Yangzhou 223009, China );WORK FLOW CHART AND KEY TECHNOLOGY OF INTEGRATED EXPLORATION-DEVELOPMENT OF OIL-GAS ACCUMULATION IN SMALL COMPLEX RIFTS IN JIANGSU[J];Geology of Anhui;2004-04
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4 LI Duoli GUAN Ping (School of Earth and Space Sciences ,Peking University, Beijing, 100871);Research Situation and Prospect of Hydrocarbon Migration in China[J];Acta Scicentiarum Naturalum Universitis Pekinesis;2004-04
5 HE Dian~1,LI Jianghai~(1),LI Baishou~21.Key Laboratory of Orogenic Belts and Crustal Evolution,School of Earth and Space Sciences,Peking University,Beijing 100871;2.Institute of Remote Sensing and GIS,Peking University,Beijing 100871;;Structural Characteristics and Geological Significance of Karayulgun Fault in Northern Tarim Basin[J];Acta Scientiarum Naturalium Universitatis Pekinensis;2009-01
6 ZHANG Shi-huaResearch Institute of Exploration and Development,Southwest Branch Company of SINOPEC,Chengdu 610081,China;Relation between the main accumulation stage and the process of generation and expulsion of hydrocarbon in T_3 x~3-T_3 x~4 petroleum system of Upper Triassic in the west Sichuan depression,China[J];Journal of Chengdu University of Technology(Science & Technology Edition);2006-03
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【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 Gong Ming;Shao Hongliang;Wu Hong;Duan Tiejun;Wang Zehou(Comprehensive Research institute of Petroleum Geology,MGMR,Jingsha,Hubei);FAULT STRUCTURAL STYLES IN TARIM BASIN AND THEIR RELATION WITH HYDROCARBON[J];OIL & GAS GEOLOGY;1995-01
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