Method for pulling tubulars using pressure wave

A method was disclosed for pulling a tubular out of a subterranean well. The method including the steps of:i) lowering a work string into the subterranean well, the work string comprising a perforating tool for perforating the tubular, and a tubular pulling tool configured to engage and pull tubular...

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Hauptverfasser: MELHUS, Geir Arne, ELBERT, Jostein
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creator MELHUS, Geir Arne
ELBERT, Jostein
description A method was disclosed for pulling a tubular out of a subterranean well. The method including the steps of:i) lowering a work string into the subterranean well, the work string comprising a perforating tool for perforating the tubular, and a tubular pulling tool configured to engage and pull tubulars out of the subterranean well;ii) connecting the tubular pulling tool to the tubular and apply a pulling tension to the tubular; iii) activating the perforating tool to form plurality of perforations extending from an inner wall of the tubular through a material deposited in an annulus defined between the tubular and an outer tubular while the applied pulling tension to the tubular is maintained;iv) immediately upon activating the perforating tool and while maintaining pulling tension to the tubular, pulling the tubular on the work string out of the subterranean well;wherein a cut in the tubular is formed prior to step iii) or simultaneously with step iii); and wherein the cut is arranged such that the tubular can be pulled out of the subterranean well during step iv). Further, a system for pulling a tubular was also disclosed.
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The method including the steps of:i) lowering a work string into the subterranean well, the work string comprising a perforating tool for perforating the tubular, and a tubular pulling tool configured to engage and pull tubulars out of the subterranean well;ii) connecting the tubular pulling tool to the tubular and apply a pulling tension to the tubular; iii) activating the perforating tool to form plurality of perforations extending from an inner wall of the tubular through a material deposited in an annulus defined between the tubular and an outer tubular while the applied pulling tension to the tubular is maintained;iv) immediately upon activating the perforating tool and while maintaining pulling tension to the tubular, pulling the tubular on the work string out of the subterranean well;wherein a cut in the tubular is formed prior to step iii) or simultaneously with step iii); and wherein the cut is arranged such that the tubular can be pulled out of the subterranean well during step iv). 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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 Method for pulling tubulars using pressure wave
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