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Sequence Strata Division and Source Bed of Coal Bed Gas Accumulation Law of Early~Middle Jurassic at Xinjiang KuBai Coalfield
Abstract:
The coal accumulation effect occurred at KuBai Coalfield in the early~middle Jurassic, including three major coal-bearing strata: Tarja Chick and Yangxia Group of Early Jurassic, and Kezilenuer group of Middle Jurassic. This article makes the contrast segment of 20 tie-well sequence strata by dividing the sequence strata and analyzing the depositional environment analysis of 85 drilling wells at Jurassic strata of KuBai Basin. By overall analyzing the materials of drilling, logging, outcropping, core and paleontology, it establishes the contrast framework of isochronal sequence strata with the unit of tertiary sequence at Jurassic strata of KuBai Basin. It also studies the sequence strata and Lithofacies of each sequence, and analyzes the coal accumulation law at Jurassic strata of KuBai Coalfield.
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4348-4352
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May 2014
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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