石油钻采工艺2016，Vol.38Issue(4)：415-421,7.DOI:10.13639/j.odpt.2016.04.002
基于钻前风险预测的井身结构优化方法
Borehole structure optimization based on pre-drill risk assessment
摘要
Abstract
Borehole structure design based on pre-drill risk assessment and considering risks related to drilling operation is the pre-condition for safe and smooth drilling operation. Major risks related to drilling operation include lost circulation, blowout, sidewall col-lapsing, sticking and failure of drilling tools etc. In the study, data from neighboring wells was used to calculate the profile of formation pressure with credibility in the target well, then the borehole structure design for the target well was assessed by using the drilling risk assessment to predict engineering risks before the start of drilling, finally, the prediction results were used to optimize borehole structure design to prevent such drilling risks. The newly-developed technique provides a scientific basis for lowering probability and frequency of drilling engineering risks, and shortening time required to drill a well, which is of great significance for safe and high-efficient drilling.关键词
井身结构优化/钻井风险/可信度/压力不确定性Key words
borehole structure optimization/drilling risk/credibility/pressure uncertainty分类
能源科技引用本文复制引用
胜亚楠,管志川,张国辉,叶浪,刘书杰,冯桓榰..基于钻前风险预测的井身结构优化方法[J].石油钻采工艺,2016,38(4):415-421,7.基金项目
国家科技重大专项课题“西部山前复杂地层安全快速钻完井技术”（编号2011ZX05021-001）；中海石油（中国）有限公司科研项目“海外 BD 高温高压高含硫气田水平井钻完井关键技术研究”（编号YXKY-2015-ZY-12）。 （）
