渤海中深层探井钻探技术研究

Research on exploration well drilling technologies used in middle-deep reservoir of the Bohai Sea

渤海油田中深部地层成藏条件良好,具有巨大开发潜力。但中深层探井钻井作业存在许多复杂问题,严重影响了该区块勘探开发效率。本文从改进马达尺寸、优化钻头齿形、控制压力钻井等方面进行了研究,并在应用中取得了良好的效果。

The deep strata of Bohai oilfield have good reservoir forming conditions and great development potential.However,there are some problems in the drilling operation of middle and deep exploration wells,which seriously affect the exploration and development efficiency. This paper studies the improvement of motor size,optimization of bit tooth shape and managed pressure drilling,and has achieved good results in application.