Wells – Processes – With indicating – testing – measuring or locating
Patent
1993-04-29
1994-12-13
Dang, Hoang C.
Wells
Processes
With indicating, testing, measuring or locating
166113, 166319, 166386, E21B 4710, E21B 3410
Patent
active
053721934
ABSTRACT:
A completion test tool for location in a tubular string comprises: a body for mounting on the string and having a wall defining a longitudinal bore and a port for fluid communication between the bore and the exterior of the tool. A valve member in the form of a sleeve is mounted on the body, in a first configuration the valve member being configured to allow fluid to flow through the port and in a second configuration the valve member being configured to close the port. The valve member is movable from the first configuration to the second configuration in response to a positive pressure differential between the bore and the tool exterior.
REFERENCES:
patent: 3662834 (1972-05-01), Young
patent: 3750752 (1973-08-01), Mott
patent: 3981360 (1976-09-01), Marathe
patent: 4258793 (1981-03-01), McGraw et al.
patent: 4434854 (1984-03-01), Vann et al.
patent: 4560005 (1985-12-01), Helderle et al.
patent: 4848457 (1989-07-01), Lilley
patent: 4856756 (1989-08-01), Combs
patent: 5048611 (1991-09-01), Cochran
Excerpts from Baker Sand Control products brochure, describing Product No. 302-41, author and publication date unknown.
Exerpts from Schlumberger products brochure, pp. 2-67 thru 2-70, describing Multicycle Circulating Valve Tool, author and publication date unknown.
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