Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Patent
1992-03-04
1993-07-13
Novosad, Stephen J.
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
1662411, 166317, 166330, 166376, 166 557, E21B 3414
Patent
active
052264831
ABSTRACT:
A safety valve landing nipple selectively provides communication between a surface control line and the internal bore of said landing nipple by use of a rotary member. A rotary shifting tool is used to rotate the rotary member so that a cutting means shears the end of a shearable plug in the wall of the landing nipple, so as to provide communication between the surface control line and the internal bore of the landing nipple. A method of providing communication within a landing nipple between the surface control line and the internal bore of the landing nipple by use of the rotary shifting tool and a rotary shifting tool having a rotatable outer mandrel means, an inner mandrel means, a travel means and a diametrically retractable means.
REFERENCES:
patent: 1629058 (1927-05-01), Wilson
patent: 1896104 (1933-02-01), Simmons
patent: 3442536 (1969-05-01), Fowler
patent: 3661207 (1972-05-01), Current et al.
patent: 4273186 (1981-06-01), Pearce et al.
patent: 4294315 (1981-10-01), Yonker et al.
patent: 4460046 (1984-07-01), Pringle
patent: 4478288 (1984-10-01), Bowyer
patent: 4534414 (1985-08-01), Pringle
patent: 4566540 (1986-01-01), Pringle et al.
patent: 4721162 (1988-01-01), Pringle et al.
patent: 4890674 (1990-01-01), Le
patent: 4944351 (1990-07-01), Eriksen et al.
patent: 4981177 (1991-01-01), Carmody et al.
patent: 5012867 (1991-05-01), Kilgore
patent: 5082061 (1992-01-01), Dollison
patent: 5095994 (1992-03-01), Dollison
Daunis Jennifer R.
Novosad Stephen J.
Otis Engineering Corporation
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