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1. WO2022008355 - THERMITE REACTION CHARGE, METHOD FOR FORMING A THREEPHASED ROCK-TO-ROCK WELL BARRIER, AND A WELL BARRIER FORMED THEREOF

Publication Number WO/2022/008355
Publication Date 13.01.2022
International Application No. PCT/EP2021/068268
International Filing Date 01.07.2021
IPC
C06B 33/00 2006.1
CCHEMISTRY; METALLURGY
06EXPLOSIVES; MATCHES
BEXPLOSIVE OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
33Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
C06B 45/00 2006.1
CCHEMISTRY; METALLURGY
06EXPLOSIVES; MATCHES
BEXPLOSIVE OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
45Compositions or products which are defined by structure or arrangement of component or product
C09K 8/42 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
42Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
E21B 29/02 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
29Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
02by explosives or by thermal or chemical means
E21B 33/13 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
33Sealing or packing boreholes or wells
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
Applicants
  • INTERWELL P&A AS [NO]/[NO]
Inventors
  • TØNDEL, Stian
  • WILKINSON, Darren, James
  • RUSTEN, Torgeir
Agents
  • ONSAGERS AS
Priority Data
2020079507.07.2020NO
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) THERMITE REACTION CHARGE, METHOD FOR FORMING A THREEPHASED ROCK-TO-ROCK WELL BARRIER, AND A WELL BARRIER FORMED THEREOF
(FR) CHARGE DE RÉACTION DE THERMITE, PROCÉDÉ DE FORMATION D'UNE BARRIÈRE DE PUITS DE ROCHE À ROCHE À TROIS PHASES, ET BARRIÈRE DE PUITS FORMÉE À PARTIR DE CETTE DERNIÈRE
Abstract
(EN) This invention relates to a thermite reaction charge comprising bismuth oxide and aluminium adapted to react with a reaction rate giving a reaction time of 8 to 15 seconds for a thermite reaction charge of 30 to 100 kg from initialisation of the thermite reaction charge to at least 90 % of the thermite reaction charge is reacted, a method for forming a three-phased rock-to-rock barrier by applying the thermite reaction charge and a well barrier formed thereof.
(FR) La présente invention se rapporte à une charge de réaction de thermite comprenant de l'oxyde de bismuth et de l'aluminium apte à réagir avec une vitesse de réaction donnant un temps de réaction de 8 à 15 secondes pour une charge de réaction de thermite de 30 à 100 kg à partir de l'initialisation de la charge de réaction de thermite jusqu'à ce qu'au moins 90 % de la charge de réaction de thermite ait réagi, un procédé de formation d'une barrière de roche à roche à trois phases par application de la charge de réaction de thermite et une barrière de puits formée à partir de cette dernière.
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