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欠压实地层、异常地层压力和高压油气层在成因上存在伴生关系,正是这种伴生关系使得三者在空间组合上具有一定的复杂性。这种复杂性导致钻井出现异常工况,同时给与欠压实地层有关的高压油气层的控制带来了很大困难。基于三者成因上的关联性与空间组合上的研究,通过多年现场钻探实例积累分析,在卡好欠压实地层的基础上,总结出“重预测、抓打开、跟上返、抢返出、盯后效”的高压油气层控制方法,遵循这一方法在实际应用中收到了理想效果。
Undercompaction, abnormal formation pressure and high-pressure oil and gas layers exist in the genetic relationship, which is the relationship between the three makes the space combination has some complexity. This complexity leads to abnormal conditions in the well while creating significant difficulties in controlling high pressure reservoirs associated with undercompacted formations. Based on the research on the association and spatial combination of the three causes, through the analysis and accumulation of many years of on-site drilling examples, based on the fact that the card is underdeveloped and compacted, it is concluded that “re-forecasting, grasping and opening up, Out, stare after effect ”high-pressure oil and gas layer control method, follow this method in the actual application received the desired effect.