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Drilling hazard management: Excellent performance begins with planning

机译:钻井灾害管理:卓越的绩效始于计划

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摘要

A drilling hazard is defined as any event off the critical path of drilling operations. Drilling hazard management focuses on wellbore stability and consequential hazards such as stuck pipe, fluids loss and equivalent circulating density (ECD) management. These events lead to non-productive drilling time in the least case, or catastrophic wellbore failure and loss of well control in the worst cases. Drilling hazard management requires understanding the uncertainty of the drilling margin: i.e., the safe applied ECD between the in situ pore pressure and/or stress equivalence and the fracture gradient as a result of the overburden.
机译:钻探危险定义为钻探操作关键路径以外的任何事件。钻井危害管理的重点是井眼稳定性和随之而来的危害,例如卡住管道,流体损失和等效循环密度(ECD)管理。这些事件在最少的情况下会导致非生产性钻井时间,在最坏的情况下会导致灾难性的井筒故障并失去控制井的能力。钻井灾害管理需要了解钻井裕量的不确定性:即,由于上覆层而在原位孔隙压力和/或应力当量与裂缝梯度之间的安全施加的ECD。

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