可控弯接头导向能力分析

The Steering Capacity Analysis of Controllable Bent Sub

可控弯接头是闭环旋转导向钻井工具的关键执行部件之一,它是一种位移工作方式的钻井工具,该工作方式以控制导向工具执行机构的偏置量为特点,用以改变井下钻具在钻进过程中的井斜角达到造斜的效果。文章分析了所设计的可控弯接头结构的钻头降井斜力以及造斜率,为可控弯接头的设计提供了理论指导,从而达到良好的工程设计结构。

Controlled bent sub is one of the key operating components of the closed loop rotary steering drilling tool, and it is a drilling tool on working with displacement .The work way to control the steering tool offset for the characteristics of the actuator, to change the down hole drilling tools in the process of drilling, Angle, to achieve the effect of deflection. The paper analyzes the design of controllable bent sub structure of the drill Wells increasing force and slope, in order to meet the design of the engineering effect.