海上钻井隔水导管打入作业溜桩深度预测  

Study on the slip pile depth prediction for offshore drilling conductor installation

作　　者：张海山 杨进[2] 严德[2] 田瑞瑞[2] 刘佳伟[2] 王啸[2] 

机构地区：[1]中海石油(中国)有限公司上海分公司,上海200030 [2]中国石油大学,北京102249

出　　处：《石油钻采工艺》2013年第3期22-24,共3页Oil Drilling & Production Technology

基　　金：国家科技重大专项"海上稠油油田快速高效开发新技术"部分研究成果(编号:2008ZX05024)

摘　　要：目前桩体施工溜桩深度预测主要集中在大直径超长桩的打桩风险分析中,对海上隔水导管施工溜桩机理和深度预测缺乏研究,存在作业盲目性和风险性。通过对海上隔水导管施工中导管与平台几何关系分析、导管极限承载力计算和溜桩机理分析,提出了海上隔水导管施工溜桩深度预测理论模型。溜桩深度预测理论模型在我国某海域油气田数口井的隔水导管施工作业中得到了成功应用,施工预测深度范围与实际溜桩深度基本一致,为隔水导管施工风险评估提供了理论基础,确保了海上作业的安全性。In view of the slip pile depth prediction in pile construction is concentrated on pile driving risk analysis of large diameter and super-long piles, but the slip depth and slip pile mechanism of offshore riser construction is lack of study, which means blindness and risk exist in operation. The geometrical relationship between conductor and offshore platform during pile driving operation, the ultimate bearing capacity of conductor and the slip pile mechanism were analyzed, and then the theoretical prediction model of the slip depth for offshore conductor driving construction was proposed. The theoretical prediction model of slip depth has been successfully applied in several wells in an offshore oil field, and the actual slip depth of conductor driving is nearly in line with the calculated result. The research achievements provide the theoretic foundation for risk assessment of conductor operation, and ensure security for offshore drilling.

关 键 词：隔水导管 打桩 极限承载力 溜桩 深度 预测 

分 类 号：TE52[石油与天然气工程—油气田开发工程]