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1. WO2020107101 - COATING OF A SCALE INHIBITOR WITH A HYDROPHOBIC AGENT FOR CONTROLLED RELEASE

Publication Number WO/2020/107101
Publication Date 04.06.2020
International Application No. PCT/CA2019/051681
International Filing Date 25.11.2019
IPC
C02F 5/08 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
5Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
08Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
C02F 5/10 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
5Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
08Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
10using organic substances
C02F 5/14 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
5Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
08Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
10using organic substances
14containing phosphorus
C09K 8/52 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
52Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
C09K 8/62 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
60Compositions for stimulating production by acting on the underground formation
62Compositions for forming crevices or fractures
E21B 43/26 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
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
25Methods for stimulating production
26by forming crevices or fractures
CPC
C02F 5/10
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
5Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
08Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
10using organic substances
C02F 5/14
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
5Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
08Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
10using organic substances
14containing phosphorus
C09K 8/528
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
528inorganic depositions, e.g. sulfates or carbonates
C09K 8/66
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
66Compositions based on water or polar solvents
E21B 43/26
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
25Methods for stimulating production
26by forming crevices or fractures
Applicants
  • TRICAN WELL SERVICE LTD [CA]/[CA]
Inventors
  • WANG, Chuanzhong
  • ZHANG, Kewei
  • O'NEIL, Bill
  • QUINTERO, Harvey
Agents
  • PARLEE MCLAWS LLP
Priority Data
62/771,36526.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COATING OF A SCALE INHIBITOR WITH A HYDROPHOBIC AGENT FOR CONTROLLED RELEASE
(FR) REVÊTEMENT D'UN INHIBITEUR DE TARTRE AVEC UN AGENT HYDROPHOBE POUR LIBÉRATION CONTRÔLÉE
Abstract
(EN)
Solid scale inhibitors that are coated with a hydrophobic coating agent selected from the group consisting of: organosilanes, organosiloxanes, polysiloxanes, amine functionalized polyolefins, polymerizable natural oils and polyethylene-vinyl acetates, for controlling the release of the inhibitors into surrounding fluid, providing a slow release that promotes the long-lasting effect of inhibition. The coated scale inhibitors have use in oilfield applications such as hydraulic fracturing operations, gravel pack operations, and in water treatment processes in other industries.
(FR)
L'invention concerne des inhibiteurs de tartre solide revêtus d'un agent de revêtement hydrophobe choisi dans le groupe constitué par : des organosilanes, des organosiloxanes, des polysiloxanes, des polyoléfines fonctionnalisées par une amine, des huiles naturelles polymérisables et des acétates de polyéthylène-vinyle, pour réguler la libération des inhibiteurs dans un fluide environnant, assurant une libération lente qui favorise un effet d'inhibition durable. Les inhibiteurs de tartre revêtus peuvent être utilisés dans des applications associées à un champ pétrolifère telles que des opérations de fracturation hydraulique ou des opérations de gravillonnage des crépines et dans des procédés de traitement d’eau.
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