Downhole tool with increased friction surface and method of manu

Details Downhole tool with increased friction surface and method of manu Downhole tool with increased friction surface and method of manu

1992-05-18

1993-09-07

Britts, Ramon S.

Wells

Packers or plugs

Expanded by confined fluid from central chamber, pump or...

166212, E21B 33127

Patent

active

052420191

ABSTRACT:
An inflatable packer is shown which includes a tubular mandrel and an inflatable, elastomeric sleeve secured to the mandrel at opposing ends thereof. A friction enhancing media is applied to the exterior surface of the mandrel by wrapping a grit laden tape about the mandrel exterior surface. The particulate material contained within the outer surface of the tape increases the coefficient of friction between the mandrel and the sleeve to retain the sleeve in its original position while the device is being run into position within the well bore.

REFERENCES:
patent: 1384305 (1921-07-01), Crotto
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patent: 2178844 (1939-11-01), Baker
patent: 2187635 (1940-01-01), Stamps
patent: 2275936 (1942-03-01), Baker
patent: 2446622 (1948-08-01), Turner
patent: 3085627 (1963-04-01), Sodich
patent: 3972528 (1976-08-01), McCracken et al.
patent: 4159115 (1979-06-01), Ticktin et al.
patent: 4607698 (1986-08-01), Wood
patent: 4744421 (1988-05-01), Wood et al.
patent: 4871179 (1989-10-01), Bell et al.

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