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1. WO2007041420 - IN-SITU SOLIDIFICATION OF INVERT EMULSION FLUIDS TO FORM GAS TIGHT ANNULAR BARRIER

Publication Number WO/2007/041420
Publication Date 12.04.2007
International Application No. PCT/US2006/038295
International Filing Date 02.10.2006
IPC
E21B 33/00 2006.01
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
CPC
C04B 28/02
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
02containing hydraulic cements other than calcium sulfates
C09K 8/467
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
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
46containing inorganic binders, e.g. Portland cement
467containing additives for specific purposes
C09K 8/487
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
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
46containing inorganic binders, e.g. Portland cement
467containing additives for specific purposes
487Fluid loss control additives; Additives for reducing or preventing circulation loss
E21B 33/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
33Sealing or packing boreholes or wells
E21B 33/14
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
33Sealing or packing boreholes or wells
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
14for cementing casings into boreholes
Applicants
  • M-I LLC [US]/[US] (AllExceptUS)
  • SVOBODA, Charles [US]/[US] (UsOnly)
Inventors
  • SVOBODA, Charles
Agents
  • BERGMAN, Jeffrey, S.
Priority Data
11/537,02729.09.2006US
60/722,34230.09.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IN-SITU SOLIDIFICATION OF INVERT EMULSION FLUIDS TO FORM GAS TIGHT ANNULAR BARRIER
(FR) SOLIDIFICATION IN SITU DE FLUIDES A EMULSION INVERSE POUR FORMER UNE BARRIERE ANNULAIRE ETANCHE AUX GAZ
Abstract
(EN)
A method for sealing a subterranean zone is disclosed. The method includes the steps of preparing a wellbore fluid, placing the wellbore fluid into at least a portion of an annular space between the sidewalls of a wellbore and the exterior of a casing string disposed in the wellbore, and allowing the wellbore fluid to solidify therein, wherein the wellbore fluid includes an oleaginous fluid as the continuous phase of the wellbore fluid, a non-oleaginous fluid as the discontinuous phase of the wellbore fluid, and about 5 to about 50 pounds per barrel of a thermally activated hydrocarbon gellant.
(FR)
L'invention concerne un procédé permettant d'étanchéifier une zone souterraine. Ce procédé comprend les étapes consistant à préparer un fluide de forage, à placer le fluide de forage dans au moins une partie d'un espace annulaire formé entre les parois latérales d'un puits de forage et l'extérieur d'une colonne de tubage disposée dans le puits, et à laisser le fluide de forage se solidifier dans cet espace. Le fluide de forage contient un fluide oléagineux en tant que phase continue, et un fluide non oléagineux en tant que phase dispersée, et approximativement de 5 à 50 livres par baril d'un gélifiant d'hydrocarbures activé thermiquement.
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