Wells – Processes – Placing or shifting well part
Patent
1991-08-16
1993-05-11
Novosad, Stephen J.
Wells
Processes
Placing or shifting well part
166154, 166155, 166202, 166317, 166324, 166385, E21B 2308, E21B 2310, E21B 3410, E21B 4500
Patent
active
052093042
ABSTRACT:
A propulsion apparatus is provided for attachment to a selected tool for propelling and positioning the tool in a tubular member in response to fluid pressure in the tubular member and includes a tubular mandrel terminating in a lower free end, a tubular sleeve disposed over the mandrel and adapted for coaxial sliding movement with respect thereto, a cup assembly mounted on the sleeve and cooperating therewith and with the fluid pressure exerted within the tubular member for translating fluid differential pressure developed across the cup assembly into preselected propelling forces, and sleeve retaining means for cooperating with the sleeve and mandrel for positioning and retaining the sleeve in a first position with respect to the mandrel and transmitting the propelling forces to the mandrel and attached tool for propelling and positioning the tool to selected locations within the tubular member. The cup assembly and sleeve retaining means also cooperate to respond to a preselected change in the fluid pressure differential acting across the cup assembly for releasing the sleeve and permitting the sleeve to move from the first position with respect to the mandrel and allow substantial equalization of the differential pressure developed across the cup assembly.
REFERENCES:
patent: 2893483 (1959-07-01), Copas
patent: 3070167 (1962-12-01), Loy III, et al.
patent: 3104714 (1963-09-01), Terrel et al.
patent: 3381755 (1968-05-01), Morrison
patent: 4729429 (1988-03-01), Wittrisch
Novosad Stephen J.
Springs Darryl M.
Western Atlas International Inc.
LandOfFree
Propulsion apparatus for positioning selected tools in tubular m does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Propulsion apparatus for positioning selected tools in tubular m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Propulsion apparatus for positioning selected tools in tubular m will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1344345