Method and apparatus for closing a wellhead casing

Details Method and apparatus for closing a wellhead casing Method and apparatus for closing a wellhead casing

1991-06-17

1993-05-04

Marmor, Charles A.

Fire extinguishers

Processes

169 46, 169 48, 169 52, 169 69, A62C 306

Patent

active

052077799

ABSTRACT:
A steerable compression clamp assembly includes a guide plate for aligning the assembly with an oil wellhead casing and clamp and compression assemblies for collapsing the casing to seal same. The clamp assembly provides an articulating arm which cooperates with a stop arm. The compression assembly includes a pair of crushing dies which mount to a hydraulic ram. In alternative configurations, a cable directed drag skid or a tracked vehicle support the compression assembly. Remotely mounted controls direct machine operation and steering. A hydraulic cylinder may also be included with a split duide plate to provide a controlled separation of the guide plate during compression.

REFERENCES:
patent: 1127816 (1915-02-01), Sink

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