Wells – With electrical means
Patent
1988-06-24
1990-09-04
Novosad, Stephen J.
Wells
With electrical means
166242, 285 55, 439191, E21B 1702, E21B 4700
Patent
active
049536362
ABSTRACT:
A pipe assembly for use in production or drilling systems comprises a plurality of pipe members connected together in end-to-end relationship and a plurality of tubular conductor members electrically connected together in end-to-end relationship. The members have co-operating tapered or stepped portions, and/or screw-threaded portions whereby the pipe members support the conductor members in internal or external coaxial relationship. A logging unit can be moved along the assembly unit under fluid pressure to engage stop means for connecting the unit with the conductor members, or a logging unit can be incorporated in a pipe member wall. An outer pipe can surround the pipe assembly to provide with the pipe assembly interior two passages for the reception, flow or circulation of fluids, for example extracted oil and/or gas and barrier fluid.
REFERENCES:
patent: 2000716 (1935-05-01), Polk
patent: 3879097 (1975-04-01), Oertle
patent: 4012092 (1977-03-01), Godbey
patent: 4067596 (1978-01-01), Kellner et al.
patent: 4105279 (1978-08-01), Glotin et al.
patent: 4683944 (1987-08-01), Curlett
patent: 4690212 (1987-09-01), Termohlen
patent: 4700778 (1987-10-01), Smith et al.
patent: 4709946 (1987-12-01), Hunter
Framo Developments (UK) Limited
Melius Terry Lee
Novosad Stephen J.
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