Boring or penetrating the earth – With signaling – indicating – testing or measuring – Measuring or indicating drilling fluid rate of flow
Patent
1989-11-30
1990-08-14
Novosad, Stephen J.
Boring or penetrating the earth
With signaling, indicating, testing or measuring
Measuring or indicating drilling fluid rate of flow
166113, 175 61, 175317, 175325, E21B 706, E21B 2108, E21B 2110, E21B 4706
Patent
active
049489259
ABSTRACT:
Apparatus and method for orienting a collar on a fluid conducting conduit, such as a drill string, includes an orifice through the wall of the conduit and a latch assembly for latching the collar to the conduit. The latch assembly allows fluid communication through the orifice and rotates the collar when the conduit is rotated in a first direction about the longitudinal axis of the conduit. The latch assembly unlatches the collar from the conduit, prevents fluid communication through the orifice, and allows the conduit to rotate relative to the collar when the conduit is rotated ion a second, opposite direction. Also included are apparatus and method for rotationally orienting a fluid conducting conduit including an insert connectable inside the conduit so that the insert is rotatable with the conduit; a flow passageway extending through the insert; a pilot passageway extending through the insert; a piston bore in the insert; a piston, reciprocably mounted in the piston bore, for reciprocating between the ends of the piston bore, the piston restricting flow through the flow passageway and creating a fluid pressure increase on the upstream side of the insert when the piston is in a restricted position in the piston bore; and a barrier mass for blocking the pilot passageway in a selected rotational position of the pilot passageway and conduit in order to increase the fluid pressure at the downstream end of the piston bore and move the piston to the restricted position in the piston bore.
REFERENCES:
patent: 2167194 (1939-07-01), Anderson
patent: 2675874 (1954-04-01), Springer
patent: 3152646 (1964-10-01), Burns
patent: 3352370 (1967-11-01), Livingston
patent: 4628495 (1986-12-01), Peppers et al.
patent: 4699224 (1987-10-01), Burton
patent: 4768598 (1988-09-01), Reinhardt
Brett J. Ford
Burton Michael B.
Warren Tommy M.
Winters Warren
Amoco Corporation
Brown Scott H.
Hook Fred E.
Novosad Stephen J.
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