A method, system and plug for providing a cross-sectional seal in a subterranean well

A method, system and plug for providing a cross-sectional seal (40´´) in a well (2) comprising a pipe body (4) and an annulus (6), the method comprising: (A) lowering a pipe expansion device (14, 20) into the pipe body (4) to a selected location; (B) with the pipe expansion device (14, 20), expandin...

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Bibliographic Details
Main Authors Østvold, Arnold, Myhre, Morten, Larsen, Arne Gunnar
Format Patent
LanguageEnglish
Published 17.08.2020
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
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Summary:A method, system and plug for providing a cross-sectional seal (40´´) in a well (2) comprising a pipe body (4) and an annulus (6), the method comprising: (A) lowering a pipe expansion device (14, 20) into the pipe body (4) to a selected location; (B) with the pipe expansion device (14, 20), expanding a section (L) of the pipe body (4) until contact with a wellbore wall (8), thus forming an expanded pipe section (18) closing the annulus (6); (C) lowering a fusible solid material (40) into the expanded pipe section (18); (D) lowering a heating tool (32) into the expanded pipe section (18); (E) activating the heating tool (32) and melting the fusible solid material (40) and allowing a molten mass (40´) thereof to fill a cross-sectional portion of the expanded pipe section (18); and (F) deactivating the heating tool (32) and allowing the molten mass (40´) to solidify and form the cross-sectional seal (40´´). (Figure 9)
Bibliography:Application Number: NO20180000152