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Sediment compaction and pore pressure prediction in deepwater basin of the South China Sea: Estimation from ODP and IODP drilling well data
Xie, Yangbing1; Wu, Tuoyu2,3; Sun, Jin1; Zhang, Hanyu1; Wang, Jiliang1; Gao, Jinwei1; Chen, Chuanxu1; Wu, Tuoyu(Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China)
2018-02-01
Source PublicationJOURNAL OF OCEAN UNIVERSITY OF CHINA
Volume17Issue:1Pages:25-34
Contribution Rank第1完成单位 ; 第2完成单位 ; 第3完成单位
AbstractOverpressure in deepwater basins not only causes serious soft sediment deformation, but also significantly affects the safety of drilling operations. Therefore, prediction of overpressure in sediments has become an important task in deepwater oil exploration and development. In this study, we analyze the drilling data from ODP Leg 184 Sites 1144, 1146, and 1148, and IODP Leg 349 Sites U1431, U1432, U1433, and U1435 to study the sediment compaction and controls in the northern South China Sea. Sedimentation rate, sediment content, distribution area, and buried depth are the factors that influence sediment compaction in the deepwater basin of the South China Sea. Among these factors, the sediment content is the most important. The fitted normal compacted coefficients and mudline porosity for an interval of 50 m shows disciplinary variation versus depth. The pore pressure predicted from different fitted results shows varying overpressure situations. The normal compaction trend from Site 1144 reflects the porosity variation trend in stable deposition basins in the northern South China Sea. The predicted pore pressure shows overpressure at Site 1144, which is attributed to compaction disequilibrium. Nevertheless, the mixed lithology column may influence the predicted over-pressure at Site 1148, which is responsible for the confusing result. Above all, we find that sediment compaction should serve as a proxy for pore pressure in the deepwater basin of the South China Sea.
SubtypeArticle
KeywordNormal Compaction Pore Pressure Prediction Deepwater Basin South China Sea
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s11802-018-3449-2
URL查看原文
Indexed BySCI
Language英语
WOS KeywordKRISHNA-GODAVARI BASIN ; PEARL RIVER MOUTH ; NATURAL GASES ; OVERPRESSURE ; GEOCHEMISTRY ; INDIA ; MECHANISMS ; VELOCITY ; ORIGIN ; SLOPE
WOS SubjectOceanography
WOS IDWOS:000419533800004
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/5256
Collection深海科学研究部_深海地球物理与资源研究室
Corresponding AuthorWu, Tuoyu; Wu, Tuoyu(Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China)
Affiliation1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Marine Geophys & Georesources, Sanya 572000, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
3.Univ Windsor, Dept Earth & Environm Sci, Windsor, ON N9B 3P4, Canada
Recommended Citation
GB/T 7714
Xie, Yangbing,Wu, Tuoyu,Sun, Jin,et al. Sediment compaction and pore pressure prediction in deepwater basin of the South China Sea: Estimation from ODP and IODP drilling well data[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2018,17(1):25-34.
APA Xie, Yangbing.,Wu, Tuoyu.,Sun, Jin.,Zhang, Hanyu.,Wang, Jiliang.,...&Wu, Tuoyu.(2018).Sediment compaction and pore pressure prediction in deepwater basin of the South China Sea: Estimation from ODP and IODP drilling well data.JOURNAL OF OCEAN UNIVERSITY OF CHINA,17(1),25-34.
MLA Xie, Yangbing,et al."Sediment compaction and pore pressure prediction in deepwater basin of the South China Sea: Estimation from ODP and IODP drilling well data".JOURNAL OF OCEAN UNIVERSITY OF CHINA 17.1(2018):25-34.
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