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1. EP3612612 - ENVIRONMENTALLY FRIENDLY ESTER-STRUCTURES AS VISCOSIFIER FOR OIL BASED DRILLING FLUIDS

Office
European Patent Office
Application Number 18743730
Application Date 13.07.2018
Publication Number 3612612
Publication Date 26.02.2020
Publication Kind B1
IPC
C09K 8/035
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
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 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
CPC
C09K 8/035
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
03Specific additives for general use in well-drilling compositions
035Organic additives
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
Applicants EMERY OLEOCHEMICALS GMBH
Inventors MAEKER DIANA
HAEHNEL PATRICK
Designated States
Title
(DE) UMWELTFREUNDLICHE ESTERSTRUKTUREN ALS VISKOSIFIZIERER FÜR ÖLBASIERTE BOHRFLUIDE
(EN) ENVIRONMENTALLY FRIENDLY ESTER-STRUCTURES AS VISCOSIFIER FOR OIL BASED DRILLING FLUIDS
(FR) UTILISATION DE STRUCTURES ESTER RESPECTUEUSES DE L'ENVIRONNEMENT COMME AMÉLIORANT D'INDICE DE VISCOSITÉ POUR FLUIDES DE FORAGE À BASE D'HUILE
Abstract
(EN) The present invention relates to a mixture of esters obtainable by reacting components of an esterifiable composition with each other, wherein the esterifiable composition comprises at least one trimer fatty acid, at least one fatty acid and at least one hydroxy monocarboxylic acid and a production process of the mixture of esters. Furthermore, the present invention relates to environmental friendly, preferably oil based, drilling fluids comprising the above- mentioned mixture of esters, water and an organic phase and the use of said mixture as viscosifier for drilling fluids.
(FR) La présente invention concerne : un mélange d'esters pouvant être obtenu par réaction de composants d'une composition estérifiable les uns avec les autres, la composition estérifiable comprenant au moins un acide gras trimère, au moins un acide gras et au moins un acide hydroxy monocarboxylique ; et un processus de production du mélange d'esters. En outre, la présente invention concerne des fluides de forage respectueux de l'environnement, de préférence à base d'huile, comprenant le mélange susmentionné d'esters, d'eau et d'une phase organique et l'utilisation dudit mélange comme améliorant d'indice de viscosité pour fluides de forage.
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