Invention Grant
- Patent Title: Subsea assist snubbing jack
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Application No.: US17076086Application Date: 2020-10-21
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Publication No.: US11236574B2Publication Date: 2022-02-01
- Inventor: John R. Cook , Robert L. Ewen , Harris Akhtar Iqbal
- Applicant: Oceaneering International, Inc.
- Applicant Address: US TX Houston
- Assignee: Oceaneering International, Inc.
- Current Assignee: Oceaneering International, Inc.
- Current Assignee Address: US TX Houston
- Agency: Maze IP Law, P.C.
- Main IPC: E21B19/08
- IPC: E21B19/08 ; E21B33/035 ; E21B33/076

Abstract:
A subsea assist snubbing jack comprises bi-directional slip bowls and can hold light or heavy pipe loads, create clamping load internally without relying on pipe weight or the force of the subsea assist snubbing jack to develop clamping force; do not require pipe motion to unseat the clamp on the pipe; utilize smooth faced inserts that do not mark the pipe; and are suitable for subsea control by wire operation. In embodiments, it is also instrumented to directly measure the pipe weight being held by one or both slip bowls.
Public/Granted literature
- US20210140261A1 SUBSEA ASSIST SNUBBING JACK Public/Granted day:2021-05-13
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