岩屑床清除器在海洋大位移钻井工程中的成功应用

Successful Application of Cuttings Bed Remover in Marine Large Displacement Drilling Engineering

大位移井中井眼清洁对钻井安全至关重要。分析了影响大位移井岩屑床形成机理和影响因素,提出一种高效工具——岩屑床清除器,它不仅能够防止岩屑床的形成,而且对形成的岩屑床可以及时清除和破坏,具有水力和机械双作用破坏。

Wellbore cleaning in large displacement wells is critical to drilling safety.This paper analyzes the formation mechanism and influencing factors affecting the cuttings bed of large displacement wells,and leads to an efficient tool cutting bed cleaner.It not only prevents the formation of cuttings beds,but also removes and destroys the formed bed of cuttings in time,with hydraulic and mechanical double-acting damage.