External line cutting apparatus

External line cutting apparatus

A method and apparatus for cutting one or more longitudinal members, external to a downhole tubular conduit, by pulling upward on a cutter body attached to the tubular conduit, where the longitudinal members are run between cutter knives within the cutter body. The cutter knives are attached to one...

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Hauptverfasser: LARRY THOMAS PALMER, JAMES S TRAHAN
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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creator LARRY THOMAS PALMER
JAMES S TRAHAN
description A method and apparatus for cutting one or more longitudinal members, external to a downhole tubular conduit, by pulling upward on a cutter body attached to the tubular conduit, where the longitudinal members are run between cutter knives within the cutter body. The cutter knives are attached to one external longitudinal member. After the main tubular conduit is cut below the cutter body, the tubular conduit is pulled, lifting the cutter body, thereby engaging the cutter knives with sloping surfaces on the cutter body to force the knives together, severing the external longitudinal members.
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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
title External line cutting apparatus
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