Invention Grant
- Patent Title: Subsea control pod deployment and retrieval systems and methods
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Application No.: US15758197Application Date: 2016-09-16
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Publication No.: US10648294B2Publication Date: 2020-05-12
- Inventor: Travis James Miller , Frank Benjamin Springett , Richard Watson Cowan
- Applicant: National Oilwell Varco, L.P.
- Applicant Address: US TX Houston
- Assignee: NATIONAL OILWELL VARCO, L.P.
- Current Assignee: NATIONAL OILWELL VARCO, L.P.
- Current Assignee Address: US TX Houston
- Agency: Conley Rose, P.C.
- International Application: PCT/US2016/052103 WO 20160916
- International Announcement: WO2017/049067 WO 20170323
- Main IPC: E21B41/04
- IPC: E21B41/04 ; E21B19/00 ; E21B33/035 ; E21B33/038 ; E21B33/064 ; E21B47/06

Abstract:
A method for replacing a first control pod of a BOP stack includes (a) lowering a control pod exchange device subsea. In addition, the method includes (b) coupling the control pod exchange device to the BOP stack. Further, the method includes (c) transferring the first control pod from the BOP stack to the control pod exchange device after (b). Still further, the method includes (d) lifting the control pod exchange device to the surface after (c).
Public/Granted literature
- US20180245417A1 Subsea Control Pod Deployment and Retrieval Systems and Methods Public/Granted day:2018-08-30
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