海洋地质与第四纪地质2017，Vol.37Issue(3)：37-46,10.DOI:10.16562/j.cnki.0256-1492.2017.03.004
南海深水海盆沉积物压实作用及影响因素
SEDIMENT COMPACTION IN DEEPWATER BASIN OF SOUTH CHINA SEA AND EFFECTING FACTORS
摘要
Abstract
The stability of sediments is closely related to sediment compaction in deepwater basins.Facts suggest that uneven compaction of sediments may trigger serious geodisasters in deepwater,such as submarine landslides,shallow gas and shallow water flow,which may bring about serious impacts on the security of the drilling operation by leakages,blowouts,platform instability and even collapse.We analyzed in this paper the well-logging data of the ODP Leg 184 Sites 1144,1146,1148 and the IODP Leg 349 Sites U1431,U1432,U1433,U1435,and found the relationships between the normal compaction and the sediments composition,sedimentation rates and burial depth etc.Taking the deepwater basin of the South China Sea as examples.Established upon the research are the primary relationship of the coefficients of normal compaction and mudline porosity with depth in deepwater basin of the South China Sea.The results could be used as a reference for geohazards researches,especially for the overpressured geohazards in deepwater.关键词
正常压实系数/沉积物组分/沉积物深度Key words
coefficients of normal compaction/sediments composition/deposition depth分类
海洋科学引用本文复制引用
谢杨冰,吴时国..南海深水海盆沉积物压实作用及影响因素[J].海洋地质与第四纪地质,2017,37(3):37-46,10.基金项目
国家科技部973项目“海洋深水油气安全高效钻完井基础研究”子课题“深水钻井浅层地质灾害形成机理及预测方法”(2015CB251201) （2015CB251201）
