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公开(公告)号：US20210348456A1
公开(公告)日：2021-11-11
申请号：US17384521
申请日：2021-07-23
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.
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公开(公告)号：US20200217154A1
公开(公告)日：2020-07-09
申请号：US16647464
申请日：2019-01-22
发明人： David Louis RICHARD , Harold James MILLER , Ivan AMIC , Christopher Jason SERRAN , Jason Brent SCHROEDER
摘要： A passive rotating jointed tubular continuous snubbing injector is provided 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 injector can include variable diameter gripping mechanisms that, in combination with linear drive mechanisms, can apply radial force onto and over a certain length of the tubular, of the tubular string, and onto and over a coupling or tool joint connecting tubulars together while moving the tubular string axially into or out of the well. Further, the injector may rotate in response to the rotation of tubulars while the injector is moving the tubular string into or out of the well.
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