Invention Grant
- Patent Title: Continuous circulation and communication drilling system
- Patent Title (中): 连续循环和通信钻井系统
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Application No.: US13760817Application Date: 2013-02-06
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Publication No.: US09249648B2Publication Date: 2016-02-02
- Inventor: Joerg Lehr
- Applicant: BAKER HUGHES INCORPORATED
- Applicant Address: US TX Houston
- Assignee: BAKER HUGHES INCORPORATED
- Current Assignee: BAKER HUGHES INCORPORATED
- Current Assignee Address: US TX Houston
- Agency: Mossman, Kumar & Tyler PC
- Main IPC: E21B21/10
- IPC: E21B21/10 ; E21B34/06 ; E21B47/12 ; E21B21/08 ; E21B21/00

Abstract:
An apparatus for performing a wellbore operation includes a drill string having a rigid tubular section formed of a plurality of jointed tubulars and a plurality of valves positioned along the rigid tubular section. Each valve may have a radial valve controlling flow through a wall of the rigid tubular section and a signal relay device configured to convey information-encoded signals. Wellbore operations may be performed by transmitting signals using the signal relay devices.
Public/Granted literature
- US20140216816A1 CONTINUOUS CIRCULATION AND COMMUNICATION DRILLING SYSTEM Public/Granted day:2014-08-07
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