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| Keywords | |
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sedimentary facies |
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hydrocarbon accumulation |
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Wanchang Formation |
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Chaluhe faulted depression |
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Yitong Basin |
| Authors | |
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CHENG Jun-1 |
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ZHU Jian-Wei-1 |
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DU Huai-Xu-2 |
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LI Ge-Quan-2 |
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MA Xu-Gang-1 |
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ZHAO Gang-1 |
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DENG Chao-3 |
| PubMed | |
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Article by Cheng, J. 1 |
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Article by Zhu, J. W. 1 |
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Article by Du, H. X. 2 |
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Article by Li, G. Q. 2 |
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Article by Ma, X. G. 1 |
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Article by Diao, G. 1 |
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Article by Deng, C. 3 |
Sedimentary facies and reservoir characteristics of Wanchang Formation in Wanchang--Liangjia structural belt of Chaluhe faulted depression
CHENG Jun-1, ZHU Jian-Wei-1, DU Huai-Xu-2, LI Ge-Quan-2, MA Xu-Gang-1, ZHAO Gang-1, DENG Chao-3
1. College of Earth Sciences��Jilin University��Changchun 130061��China; 2. Changchun Oil Production of Jilin Oilfield Company��CNPC��Changchun 130618��China; 3. College of Geosciences��China University of Petroleum��Beijing 102249��China
Wanchang and Liangjia structural belts are the important hydrocarbon accumulation zones in Chaluhe faulted depression��controlled by different structures in the process of formation and evolution�� The Wanchang structural belt is controlled by the basin-controlled fault in southeastern margin��while the Liangjia structural belt is controlled by the No. 2 fault��which led to different sand facies�� According to drilling core��well-logging and seismic data��the fan delta in Wanchang structural belt and underwater fan deposits in Liangjia structural belt are the domain sandstone sediments in shallow Wanchang Formation�� The continuity and physical property of sand bodies in Wanchang Formation are good��especially��the distributary channel and braided channel sand near to provenance have higher porosity and permeability�� The source rocks are well developed in Shuangyang-��Sheling- and Yongji formations�� Basin-controlled faults and their derivative faults help the hydrocarbon migration and sealing�� Therefore�� the hydrocarbon accumulation are great in conditions��