Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1976-09-13
1980-04-29
Smith, Robert I.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
F16J 1516
Patent
active
042002974
ABSTRACT:
Apparatus is provided for permitting a communication wireline to be suspended in a borehole along the outside of a drill stem for subsequent side entry therein and connection to a steering tool for the relaying of information from the steering tool to the surface of the borehole. The apparatus includes an apertured section of drill pipe having a self-contained sealing structure including a wireline clamp housed therein for securing and sealingly engaging the wireline therethrough and maintaining the sealed integrity of the drill stem. In this manner mud may be pumped under pressure through the drill stem to drive a drilling head while the wireline interconnects the steering tool and the borehole surface along the outside of the drill stem.
REFERENCES:
patent: 2355342 (1944-08-01), Van Wormer
patent: 3265398 (1966-08-01), Hansen et al.
patent: 3369618 (1968-02-01), Moore
Murrah M. Lee
Smith Robert I.
Sperry-Sun, Inc.
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