Coaxial coiled-tubing cable head

Details Coaxial coiled-tubing cable head Coaxial coiled-tubing cable head

1989-06-20

1990-07-17

Chapman, John

Measuring and testing

Borehole or drilling

Downhole test

439194, 439589, 439624, 2851332, E21B 4700

Patent

active

049413490

ABSTRACT:
A cable head connector is provided for coupling a plurality of nested tubes, each one of which conducts a different fluid, to a downhole geophysical tool such as a seismic sound source. The device includes separate clamps for individually gripping the respective nested tubes. Conduits are furnished for fluidly bypassing the respective clamping devices. The fluid bypass conduits are fluidly coupled to a distribution module for delivering the different fluids individually to the downhole geophysical tool. Additional facilities are provided for sending electrical control signals to the tool.

REFERENCES:
patent: 1891416 (1932-12-01), Harris
patent: 3285629 (1966-11-01), Cullen et al.
patent: 4648444 (1987-03-01), Busch
patent: 4671379 (1987-06-01), Kennedy et al.

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