Patents by Inventor Sergey Anatolievich Alkhimov
Sergey Anatolievich Alkhimov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10113103Abstract: 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.Type: GrantFiled: May 13, 2014Date of Patent: October 30, 2018Assignee: OTKRYTOE AKTSYONERNOE OBSCHESTVO “ROSNEFT OIL COMPANY”Inventors: Vladimir Vladimirovich Afanasiev, Sergey Anatolievich Alkhimov, Nataliya Borisovna Bespalova, Egor Vladimirovich Shutko, Tatyana Modestovna Yumasheva, Igor Alekseevich Kiselev, Olga Vasilievna Masloboyschikova
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Patent number: 10053620Abstract: 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.Type: GrantFiled: May 13, 2014Date of Patent: August 21, 2018Assignee: OTKRYTOE AKTSYONERNOE OBSCHESTVO “ROSNEFT OIL COMPANY”Inventors: Vladimir Vladimirovich Afanasiev, Sergey Anatolievich Alkhimov, Nataliya Borisovna Bespalova, Egor Vladimirovich Shutko, Tatyana Modestovna Yumasheva
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Patent number: 9926487Abstract: The increased thermal strength polymer proppant and method for producing the same relate to the oil and gas production technology using materials of high-molecular compounds, especially to proppants of polymer materials with high requirements for the physical and mechanical characteristics, utilized as propping granules in the oil and gas production by a method of hydraulic fracturing. The proppant is made of a metathesis-radically cross-linked mixture of oligocyclopentadienes and methylcarboxy norbornene esters. The proppant represents microspheres having a roundness and sphericity of at least 0.9 for no less than 80% by weight, whose average size being in the range 0.25-1.1 mm and a bulk density being in the range of 0.5-0.7 g/cm3. 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.Type: GrantFiled: May 13, 2014Date of Patent: March 27, 2018Assignee: OTKRYTOE AKTSYONERNOE OBSCHESTVO “ROSNEFT OIL COMPANY”Inventors: Vladimir Vladimirovich Afanasiev, Sergey Anatolievich Alkhimov, Nataliya Borisovna Bespalova, Egor Vladimirovich Shutko, Tatyana Modestovna Yumasheva, Igor Alekseevich Kiselev, Olga Vasilievna Masloboyschikova
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Patent number: 9765256Abstract: The polymer proppant and method for producing the same relate to oil and gas production technology using materials of high-molecular weight compounds with higher requirements for physical and mechanical properties. The proppant is used as propping granules utilized 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 whose material provides a compressive strength of at least 150 MPa at a temperature of not less than 100° C. The polymer proppant represents microspheres of metathesis-radically cross-linked mixture of oligocyclopentadienes.Type: GrantFiled: May 13, 2014Date of Patent: September 19, 2017Assignee: ROSNEFT OIL COMPANYInventors: Vladimir Vladimirovich Afanasiev, Sergey Anatolievich Alkhimov, Nataliya Borisovna Bespalova, Tatyana Modestovna Yumasheva
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Publication number: 20160130498Abstract: The polymer proppant and method for producing the same relate to oil and gas production technology using materials of high-molecular weight compounds with higher requirements for physical and mechanical properties. The proppant is used as propping granules utilized 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 whose material provides a compressive strength of at least 150 MPa at a temperature of not less than 100° C. The polymer proppant represents microspheres of metathesis-radically cross-linked mixture of oligocyclopentadienes.Type: ApplicationFiled: May 13, 2014Publication date: May 12, 2016Inventors: Vladimir Vladimirovich Afanasiev, Sergey Anatolievich Alkhimov, Nataliya Borisovna Bespalova, Tatyana Modestovna Yumasheva
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Publication number: 20160075939Abstract: 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.Type: ApplicationFiled: May 13, 2014Publication date: March 17, 2016Inventors: Vladimir Vladimirovich Afanasiev, Sergey Anatolievich Alkhimov, Nataliya Borisovna Bespalova, Egor Vladimirovich Shutko, Tatyana Modestovna Yumasheva
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Publication number: 20160075938Abstract: 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.Type: ApplicationFiled: May 13, 2014Publication date: March 17, 2016Inventors: Vladimir Vladimirovich Afanasiev, Sergey Anatolievich Alkhimov, Nataliya Borisovna Bespalova, Egor Vladimirovich Shutko, Tatyana Modestovna Yumasheva, Igor Alekseevich Kiselev, Olga Vasilievna Masloboyschikova
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Publication number: 20160060510Abstract: The increased thermal strength polymer proppant and method for producing the same relate to the oil and gas production technology using materials of high-molecular compounds, especially to proppants of polymer materials with high requirements for the physical and mechanical characteristics, utilized as propping granules in the oil and gas production by a method of hydraulic fracturing. The proppant is made of a metathesis-radically cross-linked mixture of oligocyclopentadienes and methylcarboxy norbornene esters. The proppant represents microspheres having a roundness and sphericity of at least 0.9 for no less than 80% by weight, whose average size being in the range 0.25-1.1 mm and a bulk density being in the range of 0.5-0.7 g/cm3. 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.Type: ApplicationFiled: May 13, 2014Publication date: March 3, 2016Applicant: OTKRYTOE AKTSYONERNOE OBSCHESTVO "ROSNEFT OIL COMPANY"Inventors: Vladimir Vladimirovich Afanasiev, Sergey Anatolievich Alkhimov, Nataliya Borisovna Bespalova, Egor Vladimirovich Shutko, Tatyana Modestovna Yumasheva, Igor Alekseevich Kiselev, Olga Vasilievna Masloboyschikova