Wells – Above ground apparatus – Moving tubing or cable into an existing well
Patent
1988-10-12
1989-10-24
Kisliuk, Bruce M.
Wells
Above ground apparatus
Moving tubing or cable into an existing well
166 80, 166 85, 166277, 137315, 138 97, E21B 2300, E21B 33068
Patent
active
048755230
ABSTRACT:
The invention relates to a compact valve removal tool with a fixed crosshead (18) to be mounted on a pipeline end, such as a wellhead spool outlet (3), and a moving crosshead (19) which is axially slidable, the fixed crosshead accommodating an axially slidable and rotatable rod (16) and gripping means (50) for holding the rod, and the moving crosshead having drive means (23, 24) for advancing and retracting it to enable rod extension pieces (17) to be fitted or removed, the fixed crosshead also having safety stops (58) movable into the line behind the rod or behind a rod extension to block the path of the rod if the griping means failed. Preferably, the moving crosshead (10) cooperates with further safety means (60-72) to prevent operation of the gripping means except in predetermined, safe positions. The tool could be useful for operations other than plug insertion, such as milling a valve gate.
REFERENCES:
patent: 1894912 (1933-01-01), Otis
patent: 1895132 (1933-01-01), Minor
patent: 2077507 (1937-04-01), Yancey
patent: 2126933 (1938-08-01), Stone et al.
patent: 2358677 (1944-09-01), Yancey
patent: 2517870 (1950-08-01), Gump
patent: 3795570 (1974-03-01), Leutwyler
patent: 3999610 (1976-12-01), Sage et al.
patent: 4162704 (1979-07-01), Gunther
patent: 4460039 (1984-07-01), Knight
patent: 4503879 (1985-03-01), Lazarus
FMC Sevice Tool Advertisement, 1978-1979 Composite Catalog, vol. 2, pp. 2595-2596.
Gray Tool Co. Completion Equipment Advertisement, 1982-1983 Composite Catalog, vol. 3, p. 3665.
Cameron Iron Works Tools Price Sheets, Model SC-43 (11-1947), Model SC-43.2 (11-1947) and Model SC-43.4 (1-1949).
Cameron Iron Works USA Inc.
Kisliuk Bruce M.
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