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1. WO2020194145 - METHOD FOR INHIBITING WATER PERMEATION IN AN EXTRACTION WELL OF A HYDROCARBON FLUID FROM AN UNDERGROUND RESERVOIR

Publication Number WO/2020/194145
Publication Date 01.10.2020
International Application No. PCT/IB2020/052536
International Filing Date 19.03.2020
IPC
C09K 8/36 2006.01
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
02Well-drilling compositions
32Non-aqueous well-drilling compositions, e.g. oil-based
36Water-in-oil emulsions
C09K 8/508 2006.01
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
50Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
504Compositions based on water or polar solvents
506containing organic compounds
508macromolecular compounds
CPC
C09K 8/36
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
02Well-drilling compositions
32Non-aqueous well-drilling compositions, e.g. oil-based
36Water-in-oil emulsions
C09K 8/508
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
50Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
504Compositions based on water or polar solvents
506containing organic compounds
508macromolecular compounds
Applicants
  • ENI S.P.A. [IT]/[IT]
Inventors
  • DEL GAUDIO, Lucilla
  • ALBONICO, Paola
  • BELLONI, Alessandra
  • MOSCATELLI, Davide
  • CESANA, Alberto
Agents
  • MARTURANO, Pasqualino
Priority Data
10201900000419122.03.2019IT
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) METHOD FOR INHIBITING WATER PERMEATION IN AN EXTRACTION WELL OF A HYDROCARBON FLUID FROM AN UNDERGROUND RESERVOIR
(FR) PROCÉDÉ D'INHIBITION DE LA PERMÉATION DE L'EAU DANS UN PUITS D'EXTRACTION D'UN FLUIDE HYDROCARBONÉ À PARTIR D'UN RÉSERVOIR SOUTERRAIN
Abstract
(EN)
The present invention relates to a method for inhibiting water permeation in an extraction well of a hydrocarbon fluid from an underground reservoir comprising: - supplying a water-in-oil emulsion comprising: - an oily continuous phase, - an aqueous discontinuous phase comprising a plurality of particles of at least one hydrogel comprising at least one cationic polymer; - positioning said water-in-oil emulsion in contact with said underground reservoir. The present invention also concerns a treatment fluid for hydrocarbon fluid extraction wells comprising the aforementioned water-in- oil emulsion and the related preparation process.
(FR)
La présente invention concerne un procédé d'inhibition de la perméation de l'eau dans un puits d'extraction d'un fluide hydrocarboné à partir d'un réservoir souterrain, consistant à : - utiliser une émulsion eau-dans-huile comprenant : - une phase continue huileuse, - une phase aqueuse discontinue comprenant une pluralité de particules d'au moins un hydrogel comprenant au moins un polymère cationique ; - positionner ladite émulsion eau-dans-huile en contact avec ledit réservoir souterrain. La présente invention concerne également un fluide de traitement pour des puits d'extraction de fluide hydrocarboné comprenant l'émulsion eau-dans-huile susmentionnée et le procédé de préparation associé.
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