Invention Grant
- Patent Title: Subsea pressure reduction system
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Application No.: US14861598Application Date: 2015-09-22
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Publication No.: US09957768B2Publication Date: 2018-05-01
- Inventor: Johannes Van Wijk , David J. McWhorter , Melvyn F. Whitby , Edward C. Gaude
- Applicant: Cameron International Corporation
- Applicant Address: US TX Houston
- Assignee: Cameron International Corporation
- Current Assignee: Cameron International Corporation
- Current Assignee Address: US TX Houston
- Agent Helene Raybaud
- Main IPC: E21B33/035
- IPC: E21B33/035 ; E21B33/06 ; E21B33/064 ; F15B3/00 ; F15B11/032

Abstract:
A system for reducing pressure in a subsea operator. In one embodiment, a subsea system includes an operator and a deintensifier. The operator includes a housing and a piston. The piston is movably disposed within the operator housing and divides an inner volume of the operator housing into a closing chamber and a second chamber. The deintensifier is fluidically coupled to the operator. The deintensifier includes a housing and a piston. The piston includes a closing surface and an opening surface. The closing surface is fluidically coupled to the second chamber of the operator housing. The opening surface is fluidically coupled to ambient pressure. The area of the closing surface is greater than an area of the opening surface so as to increase the pressure differential between the closing chamber and the second chamber and assist in moving the operator piston to the closed position.
Public/Granted literature
- US20160010418A1 Subsea Pressure Reduction System Public/Granted day:2016-01-14
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