摘要
基于井壁稳定力学模型,结合Mohr-Coulomb准则建立了井壁坍塌压力、破裂压力计算模型,编制了"钻井液安全密度窗口预测"应用软件。该软件可利用测井资料对岩石力学参数、地应力以及地层三压力剖面进行计算,并能预测垂直与水平钻进时的钻井液安全密度窗口,能够有效指导现场施工。
The author builds the calculation models of collapse pressure and fracture pressure and establishes the predication software of safe drilling fluid density window on the basis of wellbore stability mechanics model and Mohr-Coulomb criterion. The software can calculate the rock mechanics parameters,is-situ stress and tri-pressure profile based on logging data and it can predict the safe drilling fluid density window of vertical and horizontal drilling,which can guide the on-site construction effectively.
出处
《重庆科技学院学报（自然科学版）》
CAS
2016年第3期112-115,共4页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
国家973计划项目"页岩气水平井钻完井关键基础研究"(2013CB228003)
关键词
井壁稳定
钻井液密度
测井评价
安全窗口
软件编制
wellbore stability
drilling fluid density
logging evaluation
safety window
software programming
