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葡北2区块经过多年勘探开发,大部分储层都受到水淹,地下地质情况非常复杂,并且上部黑帝庙油层有浅气层存在,本文从井控风险高、易发生井下事故复杂、井眼轨迹控制难度大等几个方面分析了钻井技术难点,在施工中通过优选钻具组合,精确控制井眼轨迹,制定相应的事故复杂预防技术措施,保证了该区块安全、优质、高效钻井。
After years of exploration and development in the block of Pubei 2, most of the reservoirs have been flooded, the underground geological conditions are very complicated, and there is a shallow layer of gas in the upper Heimiao reservoir. In this paper, because of the high risk of well control and the easy occurrence of downhole accidents, Well trajectory control difficult and so on several aspects of drilling technical difficulties in the construction by optimizing the combination of drilling tools to precisely control the trajectory of the well to develop the corresponding accident prevention and control measures to ensure the safety, quality and efficiency of the block Drilling.