摘要
在气体钻大位移定向井、水平井中,随着井眼的延伸,摩擦阻力越来越大,使得钻压难以施加到钻头上,使钻井无法继续进行;此外,还使得卡钻等井下事故频繁。文章介绍的钻具减阻器不仅能降低钻具在滑动钻进中的摩擦阻力,并且能满足旋转钻进时对钻具的要求,同时减小旋转钻进时的扭矩,满足气体钻水平井、大位移水平井等特殊工艺钻井的需求。
During drilling extended reach directional wells and horizontal wells by gas, with the extension of the borehole, increasing friction made it difficult that drilling pressure applied to the drill bit, so that drilling couldn't continue. In addition, it made sticking and other underground accidents frequently. This developed drag reduction device not only reduced the friction in the sliding drilling but also met the requirements of drilling tools in rotary drilling, and reduced torque in rotary drilling. It could meet the requirements of drilling horizontal wells and extended reach directional wells and other special drilling technology.
出处
《钻采工艺》
CAS
北大核心
2011年第6期71-73,10,共3页
Drilling & Production Technology
关键词
减阻器
水平井
摩擦
drag reduction device, horizontal well, friction
