Invention Grant
- Patent Title: Downhole fiber optic transmission for real-time well monitoring and downhole equipment actuation
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Application No.: US17088840Application Date: 2020-11-04
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Publication No.: US11767754B2Publication Date: 2023-09-26
- Inventor: Frank D. Kalb , Justin D. Gorhum
- Applicant: Dril-Quip, Inc.
- Applicant Address: US TX Houston
- Assignee: Dril-Quip, Inc.
- Current Assignee: Dril-Quip, Inc.
- Current Assignee Address: US TX Houston
- Agency: Baker Botts L.L.P.
- Main IPC: E21B47/135
- IPC: E21B47/135 ; E21B19/02 ; E21B33/043

Abstract:
Systems and methods for real-time monitoring of well conditions and actuation of downhole equipment are provided. A subsea wellhead system comprises a tubing hanger landed in a wellhead, wherein the tubing hanger comprises a first fiber optic cable; a tree landed on the tubing hanger, wherein the tree comprises a second fiber optic cable; a transducer disposed at a downhole location, wherein the first fiber optic cable is communicatively coupled to the transducer and extends between the transducer and the seal sub; and a seal sub, wherein the seal sub is landed in the tubing hanger, wherein the seal sub comprises: a fiber optic communications line that is communicatively coupled to the first fiber optic cable and the second fiber optic cable; wherein the seal sub and the tubing hanger form an electrical connection regardless of an orientation of the tubing hanger relative to the tree.
Public/Granted literature
- US20210140310A1 DOWNHOLE FIBER OPTIC TRANSMISSION FOR REAL-TIME WELL MONITORING AND DOWNHOLE EQUIPMENT ACTUATION Public/Granted day:2021-05-13
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