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  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院油气资源研究重点实验室
Overpressure generation by disequilibrium compaction or hydrocarbon generation in the Paleocene Shahejie Formation in the Chezhen Depression: Insights from logging responses and basin modeling

文献类型：期刊论文

作者Li, Chao1,2; Zhang, Likuan1,2; Luo, Xiaorong1,2; Lei, Yuhong1,2; Yu, Lan3; Cheng, Ming1,2; Wang, Yongshi4; Wang, Zhonglu5
刊名MARINE AND PETROLEUM GEOLOGY
出版日期2021-11-01
卷号133页码:15
关键词Overpressure mechanisms Disequilibrium compaction Hydrocarbon generation Basin modeling Overpressure transfer Shahejie formation
ISSN号0264-8172
DOI10.1016/j.marpetgeo.2021.105258
英文摘要Abundant oil resources associated with overpressure have been confirmed to be present in the Paleogene Shahejie Formation in the Chezhen Depression. Pore pressure strongly influences the migration and trapping of hydrocarbons and impacts the safety of drilling operations. The origin of the overpressure and the relationship between overpressure and hydrocarbon migration are not clearly understood in the Chezhen Depression, which has brought difficulties in prospect evaluation and during drilling. According to the measured pressures, mud weights, logging responses, and basin modeling results, the possible overpressure mechanisms in the Shahejie Formation in the Chezhen Depression are revealed, and the distribution of overpressure and its implications for oil migration dynamics are discussed. The overpressure in the Shahejie Formation is mainly concentrated in Es3 and Es4, and the distribution of overpressure in reservoirs is complex. The disequilibrium compaction of rapidly buried Paleocene mudstones is a common overpressure mechanism in the Chezhen Depression, and the overpressure points in acoustic transit time-vertical effective stress, density-vertical effective stress and acoustic transit time-density cross plots follow the loading curves. Hydrocarbon generation has played an important role in overpressure generation at depth in the center of the Chezhen Depression. The acoustic transit time of highoverpressured intervals shows more anomalies than the density measurements, and the overpressure points fall on the unloading curves in rock property-vertical effective stress cross plots. However, overpressure due to hydrocarbon generation rarely occurs in isolation and always appears simultaneously with disequilibrium compaction. The transfer of overpressure often complicates the pressure distribution in sandstones, leading overpressure and normal pressure to occur at similar depths. The overpressure in the Chezhen Depression promoted oil migration and improved the efficiency of oil accumulation. In particular, overpressure was the main force driving the migration of the oil generated in the Es3u downward to the Es4 reservoirs. Knowledge of the mechanisms and distributions of overpressure has great significance for further exploration in the Chezhen Depression and other extensional basins.
WOS关键词PORE-PRESSURE PREDICTION ; BOHAI BAY BASIN ; ORGANIC-MATTER CRACKING ; GULF-OF-MEXICO ; SEDIMENTARY BASINS ; HALTEN TERRACE ; MECHANISM ; STRESS ; ORIGIN ; MUDSTONES
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010202] ; Key Research Program of the Institute of Geology and Geophysics, CAS[IGGCAS-201903] ; National Natural Science Foundation of China[42030808] ; Shengli Oil Company of China Petroleum & Chemical Cor-poration
WOS研究方向Geology
语种英语
WOS记录号WOS:000702739700001
出版者ELSEVIER SCI LTD
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration ; Shengli Oil Company of China Petroleum & Chemical Cor-poration
源URL[http://ir.iggcas.ac.cn/handle/132A11/102723]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Li, Chao; Luo, Xiaorong
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.SINOPEC, Petr Explorat & Prod Res Inst, Beijing 100083, Peoples R China
4.Shengli Oilfield Co SINOPEC, Dongying 257000, Shandong, Peoples R China
5.Zhongyuan Oilfield Co SINOPEC, Wenwei Oil Prod Plant, Puyang 457000, Henan, Peoples R China
推荐引用方式
GB/T 7714		 Li, Chao,Zhang, Likuan,Luo, Xiaorong,et al. Overpressure generation by disequilibrium compaction or hydrocarbon generation in the Paleocene Shahejie Formation in the Chezhen Depression: Insights from logging responses and basin modeling[J]. MARINE AND PETROLEUM GEOLOGY,2021,133:15.
APA Li, Chao.,Zhang, Likuan.,Luo, Xiaorong.,Lei, Yuhong.,Yu, Lan.,...&Wang, Zhonglu.(2021).Overpressure generation by disequilibrium compaction or hydrocarbon generation in the Paleocene Shahejie Formation in the Chezhen Depression: Insights from logging responses and basin modeling.MARINE AND PETROLEUM GEOLOGY,133,15.
MLA Li, Chao,et al."Overpressure generation by disequilibrium compaction or hydrocarbon generation in the Paleocene Shahejie Formation in the Chezhen Depression: Insights from logging responses and basin modeling".MARINE AND PETROLEUM GEOLOGY 133(2021):15.

入库方式： OAI收割

来源：地质与地球物理研究所

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