Drilling connector

Details Drilling connector Drilling connector

1993-05-14

1995-05-23

Britts, Ramon S.

Boring or penetrating the earth

With tool shaft detail

166184, E21B 17046

Patent

active

054172918

ABSTRACT:
A tubular connector for connecting a drilling tool assembly to a drill string for use in CTD operations. The connector has a fluid flow passage therethrough, and comprises: a first part connected to the drill string and a second part connected to the drilling tool assembly; inter engaging formations such as splines provided on the first and second parts such that, when engaged, the formations do not prevent relative axial movement of the first and second parts but prevent relative rotation thereof; a threaded collar provided around adjacent end portions of the first and second parts for axial location thereof when connected. The connector can also include a non-return valve assembly located in the fluid flow passage; a pressure actuated piston device in the fluid flow passage for disconnecting the drilling tool assembly from the chill string; and a pressure actuated valve which, when operated, allows fluid communication between the fluid flow passage and an exterior region of the connector.

REFERENCES:
patent: 3329221 (1967-07-01), Walker
patent: 3834472 (1974-09-01), Perkins
patent: 4054040 (1977-10-01), Medders
patent: 4378057 (1983-03-01), O'Connell
patent: 4917191 (1990-04-01), Hopmann et al.
patent: 4928772 (1990-05-01), Hopmann
patent: 4953640 (1990-09-01), Kurt
patent: 5215151 (1993-06-01), Smith et al.

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