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ZHU ShiFa, LIU Xin, ZHU XiaoMin, WAN Ce, YOU XinCai, JI Lin, DU JianPeng. The Formation Mechanism of Reservoir Differences between the Hanging Wall and the Foot Wall of Ke-Bai Overthrust Fault,Junggar Basin[J]. Acta Sedimentologica Sinica, 2015, 33(1): 194-201. doi: 10.14027/j.cnki.cjxb.2015.01.020
Citation: ZHU ShiFa, LIU Xin, ZHU XiaoMin, WAN Ce, YOU XinCai, JI Lin, DU JianPeng. The Formation Mechanism of Reservoir Differences between the Hanging Wall and the Foot Wall of Ke-Bai Overthrust Fault,Junggar Basin[J]. Acta Sedimentologica Sinica, 2015, 33(1): 194-201. doi: 10.14027/j.cnki.cjxb.2015.01.020

The Formation Mechanism of Reservoir Differences between the Hanging Wall and the Foot Wall of Ke-Bai Overthrust Fault,Junggar Basin

doi: 10.14027/j.cnki.cjxb.2015.01.020
  • Received Date: 2014-01-09
  • Rev Recd Date: 2014-05-05
  • Publish Date: 2015-02-10
  • On the basis of a large number of thin-sections, casting thin-sections, and physical property analysis of cores, the article systematically compares Permian-Jurassic reservoir differences between the foot wall and the hanging wall of the Ke-Bai overthrust fault, northwestern margin of Junggar Basin from the perspectives of structural evolution, time-space distribution of the depositional system, diagenesis evolution, and reservoir quality. The formation mechanism of reservoir differences have been discussed. The reservoir on the hanging wall is near to the provenance with coarse grain size and shallow burial depth. The lithologies are conglomerate and sandy conglomerate of alluvial fan and braided river. The compaction is weak and a large number of primary pores are well preserved. The reservoir on the foot wall is far away from the provenance with deeper burial depth and finer grain size. The lithology is sandstone of braided river delta and fan delta front. Zeolites and feldspars are intensely dissolved within some intervals. Comprehensive analysis shows that the reservoir burial history (fracture evolutionary history) controlled facies association, present burial depth, and the formation of secondary porosity in the study area. Depositional systems effected by Ke-Bai fault had a genetic impact on the grain size, compositional maturity and textural maturity of the reservoir rocks, controlling the development of primary pore configuration.
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  • Received:  2014-01-09
  • Revised:  2014-05-05
  • Published:  2015-02-10

The Formation Mechanism of Reservoir Differences between the Hanging Wall and the Foot Wall of Ke-Bai Overthrust Fault,Junggar Basin

doi: 10.14027/j.cnki.cjxb.2015.01.020

Abstract: On the basis of a large number of thin-sections, casting thin-sections, and physical property analysis of cores, the article systematically compares Permian-Jurassic reservoir differences between the foot wall and the hanging wall of the Ke-Bai overthrust fault, northwestern margin of Junggar Basin from the perspectives of structural evolution, time-space distribution of the depositional system, diagenesis evolution, and reservoir quality. The formation mechanism of reservoir differences have been discussed. The reservoir on the hanging wall is near to the provenance with coarse grain size and shallow burial depth. The lithologies are conglomerate and sandy conglomerate of alluvial fan and braided river. The compaction is weak and a large number of primary pores are well preserved. The reservoir on the foot wall is far away from the provenance with deeper burial depth and finer grain size. The lithology is sandstone of braided river delta and fan delta front. Zeolites and feldspars are intensely dissolved within some intervals. Comprehensive analysis shows that the reservoir burial history (fracture evolutionary history) controlled facies association, present burial depth, and the formation of secondary porosity in the study area. Depositional systems effected by Ke-Bai fault had a genetic impact on the grain size, compositional maturity and textural maturity of the reservoir rocks, controlling the development of primary pore configuration.

ZHU ShiFa, LIU Xin, ZHU XiaoMin, WAN Ce, YOU XinCai, JI Lin, DU JianPeng. The Formation Mechanism of Reservoir Differences between the Hanging Wall and the Foot Wall of Ke-Bai Overthrust Fault,Junggar Basin[J]. Acta Sedimentologica Sinica, 2015, 33(1): 194-201. doi: 10.14027/j.cnki.cjxb.2015.01.020
Citation: ZHU ShiFa, LIU Xin, ZHU XiaoMin, WAN Ce, YOU XinCai, JI Lin, DU JianPeng. The Formation Mechanism of Reservoir Differences between the Hanging Wall and the Foot Wall of Ke-Bai Overthrust Fault,Junggar Basin[J]. Acta Sedimentologica Sinica, 2015, 33(1): 194-201. doi: 10.14027/j.cnki.cjxb.2015.01.020
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