SYSTEM AND METHOD FOR MITIGATING FORCES ON TUBING STRINGS DURING INSTALLATION AND RETRIEVAL

SYSTEM AND METHOD FOR MITIGATING FORCES ON TUBING STRINGS DURING INSTALLATION AND RETRIEVAL

A method is provided for removing an outer string from a borehole. The method includes connecting an inner string to the outer string at a point that is downhole of a relatively weaker portion of the outer string and removing the outer string from the borehole by pulling at least the inner string in...

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Bibliographische Detailangaben
1. Verfasser: BEENTJES, IVAN
Format: Patent
Sprache:eng ; fre
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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Beschreibung
Zusammenfassung:A method is provided for removing an outer string from a borehole. The method includes connecting an inner string to the outer string at a point that is downhole of a relatively weaker portion of the outer string and removing the outer string from the borehole by pulling at least the inner string in an uphole direction. A system is also provided for removing a multi-component string from a borehole. The system includes an inner string to be connected to the multi-component string at a point that is downhole of a relatively weaker element of the multi-component string and a latching mechanism to couple the inner string to the multi-component string at the relatively weaker element of the multi-component string.