Well tool system and method for use in a well conduit

Details Well tool system and method for use in a well conduit Well tool system and method for use in a well conduit

1993-07-12

1995-03-21

Britts, Ramon S.

Wells

Processes

Placing or shifting well part

166212, 166217, F21B 2302

Patent

active

053987640

ABSTRACT:
A well tool system and a method utilizing said system e.g. pressuring a well conduit to determine whether the conduit has leaks. The system allows a plurality of no go type landing nipples to be used in a conduit without prohibitively restricting the flow therethrough. With the tool of the present system, the landing surface in each nipple is substantially smaller than in prior no go nipples since the landing surface does not support the tool during the well operation. Pressure-actuated, load-bearing keys are expanded into contact with the nipple once the tool is landed which, in turn, bear substantially all of the downward force on the tool during the well operation. The tool can easily be removed by reducing the upstream pressure and lifting the tool upward in the conduit.

REFERENCES:
patent: 4265306 (1981-05-01), Stout
patent: 4378839 (1983-04-01), Fisher, Jr.
patent: 4418750 (1983-12-01), Paschal, Jr.
patent: 4545434 (1985-10-01), Higgins
patent: 4745974 (1988-05-01), Higgins
patent: 4962813 (1990-10-01), Welch
patent: 4997038 (1991-03-01), Welch
patent: 5119875 (1992-06-01), Richard

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