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1. WO2012066125 - PROCESS FOR THE PRODUCTION OF COATED PROPPANTS

Publication Number WO/2012/066125
Publication Date 24.05.2012
International Application No. PCT/EP2011/070465
International Filing Date 18.11.2011
Chapter 2 Demand Filed 17.09.2012
IPC
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
C09K 8/80 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
80Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
CPC
C09K 8/62
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
C09K 8/805
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
80Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
805Coated proppants
E21B 43/267
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
267reinforcing fractures by propping
Applicants
  • ASHLAND-SÜDCHEMIE-KERNFEST GMBH [DE]/[DE] (AllExceptUS)
  • KUHLMANN, Peter [DE]/[DE] (UsOnly)
  • WINTER, Reinhardt [DE]/[DE] (UsOnly)
  • GREAEDTS, Jan [NL]/[NL] (UsOnly)
Inventors
  • KUHLMANN, Peter
  • WINTER, Reinhardt
  • GREAEDTS, Jan
Agents
  • VOSSIUS & PARTNER
Priority Data
10 2010 051 817.418.11.2010DE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR THE PRODUCTION OF COATED PROPPANTS
(FR) PROCÉDÉ DE PRODUCTION D'AGENTS DE SOUTÈNEMENT REVÊTUS
Abstract
(EN)
The present invention relates to a process for the production of coated proppants, proppants obtainable by such a process, uses thereof and processes using the proppants. The process for the production of coated proppants comprises the following steps: (a) mixing a proppant with a polyol component and an isocyanate component, wherein the polyol component consists of a phenolic resin and optionally one or more other hydroxy group - containing compounds, wherein the isocyanate component consists of an isocyanate having at least 2 isocyanate groups and optionally one or more other isocyanate group - containing compounds, and (b) curing the mixture obtained in step (a) by treatment with a catalyst; and (c) optionally repeating steps (a) and (b) one or more times, wherein the mixture obtained in the preceding step (b) or the proppant isolated therefrom is used as a proppant in step (a), wherein the polyol component in step (a) is the same as or different from the polyol component used in the previous step (a), and wherein the isocyanate component in step (a) is the same as or different from the isocyanate component used in the previous step (a).
(FR)
Cette invention concerne un procédé de production d'agents de soutènement revêtus, les agents de soutènement pouvant être obtenus par ce procédé, leurs utilisations et des procédés les utilisant. Le procédé de production d'agents de soutènement revêtus selon l'invention comprend les étapes suivantes : (a) le mélange d'un agent de soutènement avec un composant polyol et un composant isocyanate, le composant polyol étant constitué d'une résine phénolique et éventuellement, d'un ou de plusieurs autres composés contenant des groupes hydroxy, et le composant isocyanate étant constitué d'un isocyanate ayant au moins 2 groupes isocyanate et éventuellement, d'un ou de plusieurs autres composés contenant des groupes isocyanate, (b) le durcissage du mélange obtenu à l'étape (a) par traitement avec un catalyseur; et (c) éventuellement, la répétition des étapes (a) et (b) une ou plusieurs fois, le mélange obtenu dans l'étape (b) précédente ou l'agent de soutènement isolé à partir de celui-ci servant d'agent de soutènement dans l'étape (a), le composant polyol dans l'étape (a) étant identique ou différent du composant polyol utilisé dans l'étape (a) précédente, et le composant isocyanate dans l'étape (a) étant identique ou différent du composant isocyanate utilisé dans l'étape (a) précédente.
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