斜井井壁稳定的测井预测方法OA北大核心CSCDCSTPCD
PREDICTING METHOD OF THE WELLBORE STABILITY OF INCLINED WELL BY WELL LOGGING
从影响井壁稳定的力学因素出发,通过井壁围岩应力分析提取影响斜井井壁稳定的主应力,结合岩石破坏的强度准则建立地层坍塌压力和破裂压力的测井预测模型.针对研究工区地质情况对模型进行适当修正,建立了该区安全钻井液密度窗口.通过精细解释测井资料预测的井壁稳定情况表明,测井资料能够较好地预测井壁的稳定性,为防止井漏、井塌等工程事故提供了重要依据.
Starting from the mechanic factors that influence wellbore stability, the main stress that influences well stability of inclined well is determined through borehole wall surrounding rock stress analysis, and combining with the intensity principle of rock damage, logging prediction model of formation caving pressure and fracture pressure is established. Certain modification is made to the model considering the geological conditions of the st…查看全部>>
陈科贵;夏亚良;高成军;张歧安
西南石油大学,四川成都 610500西南石油大学,四川成都 610500西部钻探工程有限公司,新疆阜康 831500西部钻探工程有限公司,新疆阜康 831500
天文与地球科学
斜井井壁稳定测井破裂压力坍塌压力
inclined well wellbore stability well logging fracture pressure caving pressure
《大庆石油地质与开发》 2011 (6)
171-174,4
国家重点基础研究发展规划(973)项目(2011CB403002)资助.
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