A polymer material for proppant in the form of a metathesis-radically cross-linked mixture of oligocyclopentadienes and methylcarboxy norbornene esters is obtained by mixing dicyclopentadiene with methacrylic esters and polymer stabilizers, heating the mixture to a temperature of 150-220° C., holding at said temperature for 15-360 minutes, and then cooling down to 20-50° C. A radical initiator and a catalyst are added successively to the resultant mixture of oligocyclopentadienes and methylcarboxy norbornene esters. The polymer matrix is heated to a temperature of 50-340° C., is held at this temperature for 1-360 minutes and then is cooled to room temperature. A technical result achieved by implementation of the present invention is an increase in thermal strength of the proppant material, providing a compressive strength of at least 150 MPa at a temperature of not less than 100° C.
C09K 8/80 - Compositions pour renforcer les fractures, p. ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
C08G 61/08 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aliphatiques préparés par ouverture du cycle des composés carbocycliques des composés carbocycliques contenant une ou plusieurs doubles liaisons carbone-carbone dans le cycle
C08F 232/08 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique contenant des cycles condensés
The material for proppant and method for producing the same relate to the chemistry of high-molecular weight compounds, and more particularly, to polymer materials with high requirements for physical and mechanical properties, for instance, for the production of proppants, i.e., propping granules, used in the oil and gas production by a method of hydraulic fracturing of formation. The technical result achieved by implementation of the present invention is an increase in thermal strength of the proppant material providing for a compressive strength of at least 150 MPa at a temperature of not less than 100° C. The method consists in the following. A mixture of oligocyclopentadienes is obtained by heating dicyclopentadiene (DCPD) to a temperature of 150-220° C. and holding at this temperature for 15-360 minutes. The oligomerization of dicyclopentadiene occurs. The mixture of oligomers is cooled down to 20-50° C., and polymer stabilizers, radical initiators, methacrylates and a catalyst are sequentially added thereto. The resultant polymer matrix is heated up to a temperature of 50-340° C. and is held at this temperature for 1-360 minutes, and thereafter is cooled down to room temperature. A metathesis polymerization (MP) and radical polymerization (RP) cross-linkage of the mixture of oligocyclopentadienes with methacrylic esters occurs.
3. The technical result is an increase in thermal strength of the proppant material, providing for a compressive strength of at least 150 MPa at a temperature of not less than 100° C.
C09K 8/80 - Compositions pour renforcer les fractures, p. ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
C08F 232/06 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
C08F 220/18 - Esters des alcools ou des phénols monohydriques des phénols ou des alcools contenant plusieurs atomes de carbone avec l'acide acrylique ou l'acide méthacrylique
4.
METHOD FOR PRODUCING MICROSPHERES OF A POLYMER PROPPING AGENT FROM A POLYMER MATRIX BASED ON A METATHESIS-RADICALLY CROSSLINKED MIXTURE OF OLIGOCYCLOPENTADIENES
The invention relates to oil and gas mining technology involving polymer materials, namely to producing microspheres of a polymer propping agent from a polymer matrix based on a metathesis-radically crosslinked mixture of oligocyclopentadienes. The method comprises mixing matrix components, namely, a polymer stabilizer, a radical initiator, a ruthenium catalyst for metathesis polymerization of dicyclopentadiene and the mixture of oligocyclopentadienes, followed by feeding the resulting mixture in the form of a laminar flow into an aqueous solution of a thickener containing surfactants while stirring, separating microspheres formed, heating in an inert liquid medium, and holding. The method ensures a high yield of microspheres amounting to the target fraction of 0.3-1.5 wt%, and reduces the swelling in oil by 20-30%.
C09K 8/80 - Compositions pour renforcer les fractures, p. ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
C09K 8/86 - Compositions à base d'eau ou de solvants polaires contenant des composés organiques
C09K 8/70 - Compositions pour la formation de crevasses ou de fractures caractérisées par leur forme ou par la forme de leurs composants, p. ex. mousses
C09K 8/584 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c.-à-d. pour améliorer la mobilité de l'huile, p. ex. fluides de déplacement caractérisées par l'utilisation de tensio-actifs spécifiques
C08F 132/06 - Homopolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
5.
COMPOSITION FOR PRODUCING A COMPOSITE MATERIAL, COMPOSITE MATERIAL AND METHOD FOR PRODUCING SAME
The invention relates to high molecular compound chemistry, and more particularly to composite materials and a technique for producing same using polydicyclopentadiene. A composition for preparing a polymer matrix containing polydicyclopentadiene for the production of a composite material comprises (in wt%): 0.5-20.0 polymer modifier, 0.1-4.0 free-radical initiator, 0.1-4.0 polymer stabilizer, 1.0-15.0 modifying additive, 0.001-0.02 ruthenium catalyst for dicyclopentadiene metathesis polymerization, and the remainder dicyclopentadiene having a purity of at least 98%. A composite material based on polydicyclopentadiene comprises a carbon-containing inorganic filler, an organosilicone modifier, and a polymer matrix containing polydicyclopentadiene according to either of claims 1 or 2, in a specific ratio of components. The composite material is produced by preparing a polymer matrix according to either of claims 1 or 2 by means of mixing dicyclopentadiene with a polymer stabilizer and a modifier, heating the resultant mixture to a temperature of 60-180°C, and holding the mixture at this temperature for 2-360 minutes. After cooling to a temperature of 0-50°C, the mixture is mixed with a free-radical initiator, a modifying additive and a catalyst and agitated, and the resultant matrix is combined with a reinforcing carbon-containing inorganic filler pre-treated with a solution of an organosilicone modifier. Polymerization is carried out by in-mold heating to a temperature of 120-300°C and holding at this temperature for 1-300 minutes. The technical result of the realization of the proposed group of inventions is an improvement in the characteristics of composite materials based on polydicyclopentadiene and reinforcing carbon-containing materials, and more particularly an improvement in the strength and modulus of elasticity for bending and stretching, and in improvement in the process for producing composite materials using thermally activated carbene complexes of ruthenium.
C08F 236/14 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées contenant des éléments autres que le carbone et l'hydrogène
C08L 45/00 - Compositions contenant des homopolymères ou des copolymères de composés ne possédant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ou hétérocycliqueCompositions contenant des dérivés de tels polymères
C08K 5/541 - Composés contenant du silicium contenant de l'oxygène
The invention relates to the field of homogeneous catalysis and concerns the production of dicyclopentadiene metathesis polymerization catalysts. The present dicyclopentadiene polymerization catalyst in the form of a ruthenium complex is composed of [1,3-bis-(2,4,6-trimethylphenyl)-2- imidazolidenylidene]dichloro(2-((2-dimethylaminoethylmethylamino)methyl))benzylidene)ruthenium of formula (I). The catalyst is produced by reacting a triphenylphosphinic ruthenium complex with 1,1-diphenyl-2-propyn-1-ol in tetrahydrofuran or dioxane at the boiling point of a solvent in an inert atmosphere, and then with tricyclohexylphosphine at room temperature in an inert atmosphere, and isolating the resultant indenylidene ruthenium complex. The latter is successively reacted with 1,3-bis-(2,4,6-trimethylphenyl)-2-trichloromethylimidazolidine and 2-vinylbenzylamine, and the resultant product is isolated and dried. The invention provides high activity, reduced catalyst consumption, the possibility of controlling the polymerization start time, and a high level of purity of the catalyst.
C08F 4/80 - MétauxHydrures métalliquesComposés organiques de métalLeur utilisation comme précurseurs de catalyseurs choisis parmi les métaux non prévus dans le groupe choisis parmi les métaux du groupe du fer ou les métaux du groupe du platine
C07F 15/00 - Composés contenant des éléments des groupes 8, 9, 10 ou 18 du tableau périodique
B01J 23/46 - Ruthénium, rhodium, osmium ou iridium
C08F 32/00 - Homopolymères ou copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique
C08G 61/08 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aliphatiques préparés par ouverture du cycle des composés carbocycliques des composés carbocycliques contenant une ou plusieurs doubles liaisons carbone-carbone dans le cycle
The invention relates to the field of catalysis and concerns the production of catalysts for the polymerization of dicyclopentadiene. A polymerization catalyst having general formula (I), where (II) is a fundamentally novel substituent selected from a group of aminostyrenes. Fundamentally novel catalyst characteristics are thus achieved. The catalyst is produced by reacting a tri-phenylphosphine ruthenium complex with 1,1-diphenyl-2-propyn-1-ol in tetrahydrofuran or dioxane at the boiling point of the solvent in an inert atmosphere and then, the resulting indenylidene ruthenium complex is recovered with tricyclohexylphosphine at room temperature in an inert atmosphere. The indenylidene ruthenium complex is reacted with 1,3-bis-(2,4,6-trimethylphenyl)-2-trichloromethylimidazolidine and a corresponding aminostyrene, forming the target product. The invention allows for increasing the catalytic activity and chemical activity of a catalyst relative to a wide range of additives used, allows for the ability to control the time and rate of polymerization, for changing the concentration of the catalyst and the polymerization temperature, for increasing the yield of a finished catalyst while minimizing incidental impurities and expanding technological capabilities when polymerizing dicyclopentadiene, and for producing a product out of polydicyclopentadiene, said product being highly useful to consumers.
C08F 4/80 - MétauxHydrures métalliquesComposés organiques de métalLeur utilisation comme précurseurs de catalyseurs choisis parmi les métaux non prévus dans le groupe choisis parmi les métaux du groupe du fer ou les métaux du groupe du platine
C07F 15/00 - Composés contenant des éléments des groupes 8, 9, 10 ou 18 du tableau périodique
B01J 23/46 - Ruthénium, rhodium, osmium ou iridium
C08F 32/00 - Homopolymères ou copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique
C08G 61/08 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aliphatiques préparés par ouverture du cycle des composés carbocycliques des composés carbocycliques contenant une ou plusieurs doubles liaisons carbone-carbone dans le cycle
The invention relates to the field of homogeneous catalysis and concerns the production of a catalyst for the metathesis polymerization of dicyclopentadiene. A ruthenium catalyst for the polymerization of dicyclopentadiene consists of [1,3-bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene]chloro(2-((2-(dimethylaminoethylmethylamino)methyl)benzylidene) ruthenium chloride in the cationic form of formula: (I). Used in the structure of the catalyst is a fundamentally novel substituent, providing for novel catalyst characteristics allowing for carrying out the controllable polymerization of dicyclopentadiene depending on a set polymerization temperature. The catalyst is produced by reacting a triphenylphosphine ruthenium complex with 1,1-diphenyl-2-propyn-1-ol in tetrahydrofuran or dioxane at the boiling point of the solvent in an inert atmosphere and then, the resulting indenylidene ruthenium complex is recovered with tricyclohexylphosphine at room temperature in an inert atmosphere. The indenylidene ruthenium complex is reacted with 1,3-bis-(2,4,6-trimethylphenyl)-2-trichloromethylimidazolidine and 2-vinylbenzylamine of formula: (II), after which the produced compound is stirred in dichloromethane at room temperature in an inert atmosphere, and the resulting product is recovered from the reaction mixture and dried. The invention allows for setting, with a high level of precision, a start time and a polymerization rate, allows for high catalyst yield, catalyst activity and purity, allows for minimizing incidental impurities in the synthesis process, for expanding technological capabilities during the polymerization of dicyclopentadiene, and for producing a product from polydicyclopentadiene, which product is highly useful to consumers.
B01J 23/46 - Ruthénium, rhodium, osmium ou iridium
B01J 31/18 - Catalyseurs contenant des hydrures, des complexes de coordination ou des composés organiques contenant des complexes de coordination contenant de l'azote, du phosphore, de l'arsenic ou de l'antimoine
B01J 37/00 - Procédés de préparation des catalyseurs, en généralProcédés d'activation des catalyseurs, en général
C08F 4/80 - MétauxHydrures métalliquesComposés organiques de métalLeur utilisation comme précurseurs de catalyseurs choisis parmi les métaux non prévus dans le groupe choisis parmi les métaux du groupe du fer ou les métaux du groupe du platine
C07F 15/00 - Composés contenant des éléments des groupes 8, 9, 10 ou 18 du tableau périodique
C08F 32/00 - Homopolymères ou copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique
9.
POLYMER PROPPANT AND METHOD FOR PRODUCING THE SAME
The present polymer proppant and method for producing same relate to oil and gas production techniques that use materials made from high-molecular weight compounds which fulfill high requirements with respect to the physical and mechanical properties thereof. The proppant is used as propping granules, used in the extraction of oil and gas by hydraulic fracturing. The technical result of the present invention is an increase in the thermal resistance of the proppant, the material of which provides a compressive strength of at least 150 MPa at a temperature of not less than 100°C. The polymer proppant is in the form of microspheres made from a metathesis-radically cross-linked mixture of oligocyclopentadienes.
C08F 32/06 - Homopolymères ou copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
C08F 132/06 - Homopolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
C09K 8/80 - Compositions pour renforcer les fractures, p. ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
The present polymer proppant and method for producing same relate to oil and gas production techniques that use materials made from high-molecular weight compounds which fulfill high requirements with respect to the physical and mechanical properties thereof. The proppant is used as propping granules, used in the extraction of oil and gas by hydraulic fracturing. The technical result of the present invention is an increase in the thermal resistance of the proppant, the material of which provides a compressive strength of at least 150 MPa at a temperature of not less than 100°C. The polymer proppant is in the form of microspheres made from a metathesis-radically cross-linked mixture of oligocyclopentadienes.
C09K 8/80 - Compositions pour renforcer les fractures, p. ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
C08F 32/06 - Homopolymères ou copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
C08F 132/06 - Homopolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
11.
INCREASED THERMAL STRENGTH POLYMER PROPPANT AND METHOD FOR PRODUCING THE SAME
The present polymer proppant with increased thermal resistance and method for producing same relate to oil and gas production techniques which use materials made from high-molecular weight compounds, and more particularly to proppants made from polymer materials that fulfill high requirements with respect to the physical and mechanical properties thereof, which can be used as propping granules in the production of oil and gas by hydraulic fracturing. The proppant is made from a metathesis-radically cross-linked mixture of oligocyclopentadienes and methylcarboxy norbornene esters. The proppant is in the form of microspheres with a roundness and sphericity of at least 0.9 for at least 80% by weight, the average size of said microspheres being in a range of 0.25-1.1 mm and the bulk density being in a range of 0.5-0.7 g/cm3. The technical result is an increase in the thermal resistance of the proppant material, providing a compressive strength of at least 150 MPa at a temperature of not less than 100°C.
C08F 32/06 - Homopolymères ou copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
C08F 132/06 - Homopolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
C09K 8/80 - Compositions pour renforcer les fractures, p. ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
12.
POLYMER MATERIAL FOR PROPPANT AND METHOD FOR PRODUCING THE SAME
A polymer proppant material in the form of a metathesis-radically cross-linked mixture of oligocyclopentadienes and methylcarboxy norbornene esters is obtained by mixing dicyclopentadiene with methacrylic esters and polymer stabilizers, heating the mixture to a temperature of 150-220°C, holding at said temperature for 15-360 minutes and then cooling to 20-50°C. A radical initiator and a catalyst are added successively to the resultant mixture of oligocyclopentadienes and methylcarboxy norbornene esters. The polymer matrix is heated to a temperature of 50-340°C, held at this temperature for 1-360 minutes and then cooled to room temperature. The technical result of the present invention is an increase in the thermal resistance of the proppant material, providing a compressive strength of at least 150 MPa at a temperature of not less than 100°C.
C08G 61/08 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aliphatiques préparés par ouverture du cycle des composés carbocycliques des composés carbocycliques contenant une ou plusieurs doubles liaisons carbone-carbone dans le cycle
C09K 8/80 - Compositions pour renforcer les fractures, p. ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
A polymer proppant material in the form of a metathesis-radically cross-linked mixture of oligocyclopentadienes and methylcarboxy norbornene esters is obtained by mixing dicyclopentadiene with methacrylic esters and polymer stabilizers, heating the mixture to a temperature of 150-220°C, holding at said temperature for 15-360 minutes and then cooling to 20-50°C. A radical initiator and a catalyst are added successively to the resultant mixture of oligocyclopentadienes and methylcarboxy norbornene esters. The polymer matrix is heated to a temperature of 50-340°C, held at this temperature for 1-360 minutes and then cooled to room temperature. The technical result of the present invention is an increase in the thermal resistance of the proppant material, providing a compressive strength of at least 150 MPa at a temperature of not less than 100°C.
C08G 61/08 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aliphatiques préparés par ouverture du cycle des composés carbocycliques des composés carbocycliques contenant une ou plusieurs doubles liaisons carbone-carbone dans le cycle
14.
POLYMER PROPPANT WITH INCREASED THERMAL RESISTANCE AND METHOD FOR PRODUCING SAME
The present polymer proppant with increased thermal resistance and method for producing same relate to oil and gas production techniques which use materials made from high-molecular weight compounds, and more particularly to proppants made from polymer materials that fulfill high requirements with respect to the physical and mechanical properties thereof, which can be used as propping granules in the production of oil and gas by hydraulic fracturing. The proppant is made from a metathesis-radically cross-linked mixture of oligocyclopentadienes and methylcarboxy norbornene esters. The proppant is in the form of microspheres with a roundness and sphericity of at least 0.9 for at least 80% by weight, the average size of said microspheres being in a range of 0.25-1.1 mm and the bulk density being in a range of 0.5-0.7 g/cm3. The technical result is an increase in the thermal resistance of the proppant material, providing a compressive strength of at least 150 MPa at a temperature of not less than 100°C.
C09K 8/80 - Compositions pour renforcer les fractures, p. ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
C08F 32/06 - Homopolymères ou copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
C08F 132/06 - Homopolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
15.
MATERIAL FOR PROPPANT AND METHOD FOR PRODUCING THE SAME
The present proppant material and method for producing same relate to the chemistry of high-molecular weight compounds, and more particularly to polymer materials that fulfill high requirements with respect to the physical and mechanical properties thereof, in particular for the production of proppants (propping granules) which can be used in the extraction of oil and gas by hydraulic fracturing. The technical result of the present invention is an increase in the thermal resistance of the proppant material, providing a compressive strength of at least 150 MPa at a temperature of not less than 100°C. The method consists in the following. A mixture of oligocyclopentadienes is produced by heating dicyclopentadiene (DCPD) to a temperature of 150-220°C and holding at said temperature for 15-360 minutes. The oligomerization of the dicyclopentadiene occurs. The oligomer mixture is cooled to 20-50°?, and polymer stabilizers, radical initiators, methacrylates and a catalyst are successively added thereto. The resultant polymer matrix is heated to a temperature of 50-340°?, held at said temperature for 1-360 minutes and then cooled to room temperature. Metathesis (MP) and radical (RP) cross-linking of a mixture of oligocyclopentadienes and methacrylatic esters occurs.
C08F 32/06 - Homopolymères ou copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
C08F 132/06 - Homopolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
C09K 8/80 - Compositions pour renforcer les fractures, p. ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
The present proppant material and method for producing same relate to the chemistry of high-molecular weight compounds, and more particularly to polymer materials that fulfill high requirements with respect to the physical and mechanical properties thereof, in particular for the production of proppants (propping granules) which can be used in the extraction of oil and gas by hydraulic fracturing. The technical result of the present invention is an increase in the thermal resistance of the proppant material, providing a compressive strength of at least 150 MPa at a temperature of not less than 100°C. The method consists in the following. A mixture of oligocyclopentadienes is produced by heating dicyclopentadiene (DCPD) to a temperature of 150-220°C and holding at said temperature for 15-360 minutes. The oligomerization of the dicyclopentadiene occurs. The oligomer mixture is cooled to 20-50°С, and polymer stabilizers, radical initiators, methacrylates and a catalyst are successively added thereto. The resultant polymer matrix is heated to a temperature of 50-340°С, held at said temperature for 1-360 minutes and then cooled to room temperature. Metathesis (MP) and radical (RP) cross-linking of a mixture of oligocyclopentadienes and methacrylatic esters occurs.
C08F 32/06 - Homopolymères ou copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
C08F 132/06 - Homopolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique ne contenant pas de cycles condensés contenant plusieurs doubles liaisons carbone-carbone
C09K 8/80 - Compositions pour renforcer les fractures, p. ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
brevets
