公开(公告)号：WO1994023174A1

公开(公告)日：1994-10-13

申请号：PCT/US1994002974

申请日：1994-03-18

Applicant: MARATHON OIL COMPANY

Inventor： MARATHON OIL COMPANY ,  STOLTZ, Ronald, P.

IPC: E21B17/10

CPC classification number: E21B17/1057

Abstract: A method and apparatus for running in a tubing string through a high angle or horizontal wellbore without damage to equipment on the tubing string. Centralizers are mounted on the tubing string at spaced intervals on either side of the equipment. The centralizers include spherical rollers which contact the wellbore casing and which are mounted so as to have little or no radially inward movement.

Abstract translation: 一种用于在油管柱中通过高角度或水平井筒运行而不损坏油管柱上的设备的方法和装置。 集中器在设备两侧以间隔的间隔安装在油管柱上。 扶正器包括与井筒壳体接触并且被安装为具有很少或没有径向向内运动的球面滚子。