公开(公告)号：US20210348456A1

公开(公告)日：2021-11-11

申请号：US17384521

申请日：2021-07-23

申请人： AUTOMATED RIG TECHNOLOGIES LTD.

发明人： David Louis RICHARD ,  Harold James MILLER ,  Ivan AMIC ,  Christopher Jason SERRAN ,  Jason Brent SCHROEDER ,  Alejandro Dino CHAVEZ

IPC分类号： E21B19/084 ,  E21B19/22 ,  B66D3/00

摘要： A trigger mechanism is provided for a passive rotating jointed tubing injector having gripper blocks for moving connected, segmented oilfield tubulars axially into or out of horizontal, extended-reach oil and natural gas wells that may contain pressurized fluid or gas to complete for production, work over and service the wells, utilizing an operation commonly known as snubbing. The trigger mechanism can open the gripper blocks when a tapered upset section of increasing diameter on the tubulars is encountered that would not otherwise fully open and operate the gripper blocks.