Invention Grant
- Patent Title: Variable guide and protection bushing for well conveyance
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Application No.: US14825090Application Date: 2015-08-12
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Publication No.: US09752391B2Publication Date: 2017-09-05
- Inventor: Michael Vincent Jekot , David H. Theiss , Jack H. Vincent , Stephen E. Gaydos , Nguyen D. Trinh , Casey B. Hahn
- Applicant: ONESUBSEA IP UK LIMITED
- Applicant Address: GB London
- Assignee: OneSubsea IP UK Limited
- Current Assignee: OneSubsea IP UK Limited
- Current Assignee Address: GB London
- Agency: Conley Rose, P.C.
- Main IPC: E21B17/10
- IPC: E21B17/10

Abstract:
A guide and protection bushing assembly is mountable in a well production system (e.g., a subsea tree) having an intervention member (e.g., a blowout preventer). The assembly guides a string of components to a cable hanger sealing surface disposed in the production system without damaging the sealing surface. The assembly includes a body having a first end engaging an intervention member, a second end engaging the production system, an outer surface, and an inner through passage that expands radially at the first end to form a funnel shape. In some embodiments, the assembly may further include rollers, leaf springs, or a protective sleeve coupled to biasing members, a plurality of centering disks having a plurality of flexible flaps separated by spacers, and/or centering devices with fins separated by spacers. In some embodiments, the assembly may further include a hydraulically actuated plurality of rams, a piston with a plurality of protective elements, a plurality of nozzle jets, and/or a plurality of bladders.
Public/Granted literature
- US20160047183A1 VARIABLE GUIDE AND PROTECTION BUSHING FOR WELL CONVEYANCE Public/Granted day:2016-02-18
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