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1. WO2021066814 - SETTABLE, REMOVABLE, AND REUSABLE LOST CIRCULATION FLUIDS

Publication Number WO/2021/066814
Publication Date 08.04.2021
International Application No. PCT/US2019/054078
International Filing Date 01.10.2019
IPC
E21B 21/06 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
21Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
06Arrangements for treating drilling fluids outside the borehole
E21B 21/00 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
21Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
C09K 8/42 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
42Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
C09K 8/035 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
03Specific additives for general use in well-drilling compositions
035Organic additives
CPC
C09K 2208/26
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
2208Aspects relating to compositions of drilling or well treatment fluids
26Gel breakers other than bacteria or enzymes
C09K 8/502
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
502Oil-based compositions
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
C09K 8/516
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
516characterised by their form or by the form of their components, e.g. encapsulated material
C09K 8/524
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
52Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
524organic depositions, e.g. paraffins or asphaltenes
C09K 8/76
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
60Compositions for stimulating production by acting on the underground formation
62Compositions for forming crevices or fractures
72Eroding chemicals, e.g. acids
74combined with additives added for specific purposes
76for preventing or reducing fluid loss
Applicants
  • HALLIBURTON ENERGY SERVICES, INC. [US]/[US]
Inventors
  • MAY, Preston Andrew
  • DEVILLE, Jay Paul
Agents
  • BITTNER, Sarah S.
  • ROSE, Collin A.
Priority Data
16/588,47630.09.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SETTABLE, REMOVABLE, AND REUSABLE LOST CIRCULATION FLUIDS
(FR) FLUIDES DE CIRCULATION PERDUS, POUVANT ÊTRE DURCIS, RÉCUPÉRÉS ET RÉUTILISÉS
Abstract
(EN)
A method of drilling may include mixing, at the surface, a base fluid, a polyvalent cation reactive polymer, and a delayed source of polyvalent cation so as to form a treatment fluid; placing the treatment fluid in a subterranean formation to form a solid plug including the polyvalent cation reactive polymer crosslinked with the polyvalent cation; contacting the solid plug with a breaker so as to transform the solid plug into a reclaimed treatment fluid; and removing the reclaimed treatment fluid. A system for drilling may include a treatment fluid, at the surface, including a polyvalent cation reactive polymer, and a delayed source of a polyvalent cation, where the treatment fluid is settable in the formation to form a solid plug including the polyvalent cation reactive polymer and the polyvalent cation; and a breaker, separate from the treatment fluid at the surface, capable of liquefying the solid plug.
(FR)
Un procédé de forage peut consister à mélanger, en surface, un fluide de base, un polymère réactif avec un cation polyvalent et une source retardée de cation polyvalent de façon à former un fluide de traitement ; placer le fluide de traitement dans une formation souterraine pour former un bouchon solide comprenant le polymère réactif avec le cation polyvalent réticulé avec le cation polyvalent ; mettre en contact le bouchon solide avec un élément de rupture de façon à transformer le bouchon solide en un fluide de traitement régénéré ; et récupérer le fluide de traitement régénéré. Un système de forage peut comprendre un fluide de traitement, en surface, comprenant un polymère réactif avec un cation polyvalent, et une source retardée d'un cation polyvalent, le fluide de traitement étant durcissable dans la formation pour former un bouchon solide comprenant le polymère réactif avec le cation polyvalent et le cation polyvalent ; et un élément de rupture, séparé du fluide de traitement en surface, capable de liquéfier le bouchon solide.
Also published as
Latest bibliographic data on file with the International Bureau