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本文以隆××井为例,介绍了采用“控制回压与置换法的压井工艺”处理井喷事故的经过和取得的较好效果,并总结了一些经验教训。文中特别提出,为有效地控制和处理井喷事故,在“地质钻井施工设计书”上应有准确可靠的每层地层的“地层破裂压力梯度”数值。并提出了取得该数值的几种方法,其中较为详细地介绍了“裸眼地层压力试验法”。
In this paper, the Longxiao well is taken as an example to introduce the good results of the wellbore blowout accident handling and the “Well Controlling Back Pressure and Replacement Method”, and some experiences and lessons are summarized. In particular, the article states that in order to effectively control and deal with blowout accidents, there should be accurate and reliable numerical values of the “formation burst pressure gradient” for each stratum in the “Geological Drilling Construction Design Document.” And put forward several methods to get this value. The “Open Hole Pressure Test Method” is introduced in detail.