Method and apparatus for running long tools into and out of a pr

Details Method and apparatus for running long tools into and out of a pr Method and apparatus for running long tools into and out of a pr

1985-10-30

1987-07-21

Novosad, Stephen J.

Wells

Processes

Placing or shifting well part

166 70, E21B 2300

Patent

active

046811680

ABSTRACT:
A method and apparatus for running long tools into an out of pressurized enclosures includes a tool stop assembled on an access pressure lock of the enclosure and which tool stop cooperates with a segmented tool string to allow sequential assembly, insertion, withdrawal and disassembly of the tool string into and out of the enclosure. The tool string is made up of a number of tool segments interconnected by coupler/spacer members of smaller diameter than the tool sections and of shorter length. The tool catcher acts upon the thinner sections of the coupler/spacer members to fixedly hold the tool string in place for subsequent assembly/disassembly without allowing any significant pressure change in said enclosure.

REFERENCES:
patent: 1852716 (1932-04-01), Grinnell
patent: 2758654 (1956-08-01), Simmons
patent: 4317486 (1982-03-01), Harris
patent: 4591007 (1986-05-01), Shaginian et al.

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