In Shengli Chengdao Oilfield,repeated pile insertion and pulloutl at the same wellhead causes great damage and disturbance to seabed soil strata,and conventional pile insertion analysis method frequently leads to inaccurate prediction of high-disturbance strata.In order to improve the compliance rate of pile driving analysis and reduce platform sitting risks,this paper proposes a comprehensive analysis method of pile insertion in high-disturbance areas under repeated pile insertion and pullout of Shengli Chengdao Oilfield by comparing SY,ISO,SNAME and other domestic and foreign norms.By summarizing domestic and foreign calculation methods and qualitatively analyzing the destruction mode of soil for pile insertion,this method made a big data analysis of historical pile driving depth and water depth of the oilfield,generalized the uniformity of the seabed in the sitting area and the pattern of pile insertion,performed a comprehensive analysis of the existing pile pit strength and geophysical means,and combined the use of case study.It greatly improves the compliance rate of multiple pile driving operations at the same wellhead of the moving platform,reduces its hidden dangers,and increases its operating efficiency.
关键词
埕岛油田/插桩分析/反复插拔桩/历史插桩深度/大数据分析
Key words
Chengdao Oilfield/pile insertion analysis/repeated pile insertion and pullout/historical pile driving depth/big data analysis
维普
万方数据