Slimhole coring system

Details Slimhole coring system Slimhole coring system

1993-07-22

1995-06-20

Britts, Ramon S.

Boring or penetrating the earth

Processes

Sampling of earth formations

175215, 175320, G21B 2502

Patent

active

054254280

ABSTRACT:
An apparatus and method for transporting a tool through a drill string in slimhole drilling operations is disclosed. A fluid passage such as a groove is formed in the inner wall of the pipe joint to permit the passage of fluid from one pipe section to an adjacent pipe section as a tool is transported through the pipe joint. In one embodiment of the invention, the tool can comprise a core barrel for retrieving a core sample from the wellbore.

REFERENCES:
patent: 3786878 (1974-01-01), Chapman
patent: 3815691 (1974-06-01), Richter, Jr. et al.
patent: 3926265 (1975-12-01), Bouyoucos
patent: 4278138 (1981-07-01), Rowley et al.
patent: 4691790 (1987-09-01), Reichman et al.
patent: 4860838 (1989-08-01), Asak
patent: 5125463 (1992-06-01), Livingstone et al.

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