| 摘要 |
<p>A method of manufacture and installation of a resizable, plastically deformable or crimpable elastomeric bearing collar or stabilizer sleeve which can be installed over upset sections of rotary drilling and wellbore completion tubulars such as but not limited to subs, drill collars, drill pipe, wellbore casing, production liners and other drilling and production related tubulars that are nm down-hole. In order to enable the reduction of rotational torque generated when directionally drilling and completing extended reach development (ERD) wells.</p> |
