Multiple conduit drill pipe

Details Multiple conduit drill pipe Multiple conduit drill pipe

1981-12-21

1985-06-11

Bryant, III, James E.

Pipes and tubular conduits

Combined

With means to support disparate element therein

138111, 138113, 138148, 285133R, 339 16C, 339 16R, F16L 3900, E21B 106

Patent

active

045222347

ABSTRACT:
Pipe comprising intermediate tube radially spaced between outer and inner tubes, a support adjacent one end of inner tube fixedly mounting intermediate tube to outer and inner tubes and a shock mount adjacent the other end of intermediate tube fixedly attached to the intermediate tube positioning intermediate tube between inner and outer tubes and including a resilient part providing for limited relative axial and rotational movement between intermediate tube and outer tube at said second support, said resilient part having lower modulus of elasticity than said first support and being elastomeric to damp out relative rotational vibrations of said tubes through its internal friction, threaded portions on ends of outer tube for making mechanical connection with correlative threaded portions on ends of outer tube of similar pipe, telescopic portions on ends of intermediate tube for making fluid conducting connection with correlative portions on ends of intermediate tube of similar pipe, pin and socket on ends of inner tube for making electrical connection with correlative socket and pin on ends of inner tube of similar pipe, and electric conduit within inner tube connecting said pin and socket, said threaded portions including shoulders limiting make up with correlative shoulders on ends of outer tube of similar pipe, said telescopic portions and pin and socket providing for limited axial motion of inner and intermediate tubes of the pipe with respect to those of similar pipes when said threaded portions are fully made up with correlative threaded portions on similar pipe.

REFERENCES:
patent: 2519933 (1950-08-01), Rouault
patent: 3033011 (1962-05-01), Garrett
patent: 3471177 (1969-10-01), Garrett et al.
patent: 3583502 (1971-06-01), Henderson
patent: 3970335 (1976-07-01), Curington et al.
patent: 4039237 (1977-08-01), Cullen et al.

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