Patents by Inventor Jan Pieter Vijn
Jan Pieter Vijn 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: 11447681Abstract: Methods of forming an aqueous silica suspension are provided. The methods include admixing water, an organic acid, a silica powder, and a siliconate under certain conditions. The silica powder includes undensified silica powder in an amount of at least about 50% by weight and has a specific gravity in the range of from about 2.1 to about 2.5, a bulk density in the range of from about 12 lb/ft3 to about 40 lb/ft3, and a water requirement of from about 80 to about 250 at a pH in the range of from about 5.5 to about 7.5. Also provided are aqueous silica suspensions, hydraulic cement compositions, and methods of cementing in a well.Type: GrantFiled: July 30, 2019Date of Patent: September 20, 2022Assignee: Halliburton Energy Services, Inc.Inventors: Sairam K S Pindiprolu, Sudhir Maruti Nimane, Jan Pieter Vijn
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Publication number: 20220127511Abstract: Methods of forming an aqueous silica suspension are provided. The methods include admixing water, an organic acid, a silica powder, and a siliconate under certain conditions. The silica powder includes undensified silica powder in an amount of at least about 50% by weight and has a specific gravity in the range of from about 2.1 to about 2.5, a bulk density in the range of from about 12 lb/ft3 to about 40 lb/ft3, and a water requirement of from about 80 to about 250 at a pH in the range of from about 5.5 to about 7.5. Also provided are aqueous silica suspensions, hydraulic cement compositions, and methods of cementing in a well.Type: ApplicationFiled: July 30, 2019Publication date: April 28, 2022Inventors: Sairam KS PINDIPROLU, Sudhir Maruti NIMANE, Jan Pieter VIJN
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Patent number: 9587155Abstract: An emulsion breaker composition, a method of making the emulsion breaker, and method of breaking an emulsion are disclosed. In one method, an emulsion is contacted with an effective amount of an emulsion breaker composition. The emulsion breaker is a linear or branched polymer having at least one branch, wherein each branch has a first polymer block having a backbone including a plurality of ester groups and a second polymer block including an alkoxylate, and wherein at least two of the ester groups are connected by a —CR1R2 group. The emulsion breakers are preferably formed by reacting a polyol with a cyclic ester monomer in the presence of a first catalyst to form an intermediate polymer having a plurality of branches, wherein each branch has a backbone including a plurality of ester groups, and then reacting the intermediate polymer with at least one alkylene oxide species in the presence of a second catalyst to form an alkoxylate block on each branch.Type: GrantFiled: May 15, 2013Date of Patent: March 7, 2017Assignee: Ecolab USA Inc.Inventors: Liangwei Qu, Jan Pieter Vijn, Scot Bodnar, Carlos Lizarazo
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Publication number: 20130324446Abstract: An emulsion breaker composition, a method of making the emulsion breaker, and method of breaking an emulsion are disclosed. In one method, an emulsion is contacted with an effective amount of an emulsion breaker composition. The emulsion breaker is a linear or branched polymer having at least one branch, wherein each branch has a first polymer block having a backbone including a plurality of ester groups and a second polymer block including an alkoxylate, and wherein at least two of the ester groups are connected by a —CR1R2 group. The emulsion breakers are preferably formed by reacting a polyol with a cyclic ester monomer in the presence of a first catalyst to form an intermediate polymer having a plurality of branches, wherein each branch has a backbone including a plurality of ester groups, and then reacting the intermediate polymer with at least one alkylene oxide species in the presence of a second catalyst to form an alkoxylate block on each branch.Type: ApplicationFiled: May 15, 2013Publication date: December 5, 2013Applicant: CHAMPION TECHNOLOGIES, INC.Inventors: Liangwei Qu, Jan Pieter Vijn, Scot Bodnar, Carlos Lizarazo
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Patent number: 7238733Abstract: Storable water-silica suspensions and methods of cementing well bores are provided. The storable water-silica suspensions are basically comprised of water, silica and an effective amount of a suspending agent selected from the group consisting of colloidal materials, clays and gel forming polymers.Type: GrantFiled: September 29, 2004Date of Patent: July 3, 2007Inventors: Jan Pieter Vijn, Bach Dao
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Patent number: 7060129Abstract: The present invention provides a cement composition and a process for using the cement composition to inhibit gas migration from a subterranean zone into the cement. The process comprises displacing a gelling additive, preferably comprised within a cement composition, into a well bore such that the gelling additive passes into the subterranean zone, and allowing the gelling additive to form a crosslinked gel in the subterranean zone to inhibit gas migration from the subterranean zone. The crosslinked gel acts as a barrier to gas in the subterranean zone and thereby inhibits the gas from passing into the cement and forming flow channels therein before the cement can set.Type: GrantFiled: January 14, 2005Date of Patent: June 13, 2006Assignee: Halliburton Energy Services, Inc.Inventors: Bach Dao, Ewout Biezen, Jan Pieter Vijn, Thien Pham
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Patent number: 6978835Abstract: A method of retarding the set time of a cement composition comprising providing a cement composition that comprises water and a cement, and retarding the set time of the cement composition by including a copolymer retarder in the cement composition, wherein the copolymer retarder comprises olefinically unsaturated non-acrylate sulfonate monomers and olefinically unsaturated carboxylic acid monomers. Methods of cementing in a subterranean formation also are provided.Type: GrantFiled: October 11, 2004Date of Patent: December 27, 2005Assignee: Halliburton Energy Services, Inc.Inventors: B. Raghava Reddy, Dennis W. Gray, Bryan K. Waugh, Jan Pieter Vijn
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Patent number: 6953090Abstract: Methods of cementing subterranean zones using cement compositions containing biogradable dispersants are provided. The methods are basically comprised of the steps of preparing a hydraulic cement, a biodegradable dispersant comprised of polyaspartic acid containing side chains formed by reacting one or more side chain chemicals with said polyaspartic acid and sufficient water to form a pumpable slurry, placing the cement composition into a zone to be cemented and allowing the cement composition to set into an impermeable solid mass therein.Type: GrantFiled: November 17, 2003Date of Patent: October 11, 2005Assignees: Halliburton Energy Services, Inc., Degussa Construction Polymers GmbHInventors: Jan Pieter Vijn, Christian E. Spindler, Gregor Keilhofer, Johann Plank
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Patent number: 6936574Abstract: The present invention provides a cement composition and a process for using the cement composition to inhibit gas migration from a subterranean zone into the cement. The process comprises displacing a gelling additive, preferably comprised within a cement composition, into a well bore such that the gelling additive passes into the subterranean zone, and allowing the gelling additive to form a crosslinked gel in the subterranean zone to inhibit gas migration from the subterranean zone. The crosslinked gel acts as a barrier to gas in the subterranean zone and thereby inhibits the gas from passing into the cement and forming flow channels therein before the cement can set.Type: GrantFiled: August 30, 2002Date of Patent: August 30, 2005Assignee: Halliburton Energy Services, Inc.Inventors: Bach Dao, Ewout Biezen, Jan Pieter Vijn, Thien Pham
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Publication number: 20050160947Abstract: The present invention provides a cement composition and a process for using the cement composition to inhibit gas migration from a subterranean zone into the cement. The process comprises displacing a gelling additive, preferably comprised within a cement composition, into a well bore such that the gelling additive passes into the subterranean zone, and allowing the gelling additive to form a crosslinked gel in the subterranean zone to inhibit gas migration from the subterranean zone. The crosslinked gel acts as a barrier to gas in the subterranean zone and thereby inhibits the gas from passing into the cement and forming flow channels therein before the cement can set.Type: ApplicationFiled: January 14, 2005Publication date: July 28, 2005Inventors: Bach Dao, Ewout Biezen, Jan Pieter Vijn, Thien Pham
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Patent number: 6814798Abstract: Storable water-microsphere suspensions for use in well cements and methods of cementing well bores are provided. The storable water-microsphere suspensions are basically comprised of water, microspheres and an effective amount of a suspending agent selected from the group consisting of microfine or colloidal materials and gel forming polymers.Type: GrantFiled: October 15, 2002Date of Patent: November 9, 2004Assignee: Halliburton Energy Services, Inc.Inventors: Jan Pieter Vijn, Bach Dao
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Patent number: 6811603Abstract: The present invention provides methods, lightweight well cement compositions and additives for the well cement compositions. The methods of the invention for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure is basically comprised of the steps of providing a lightweight cement composition comprised of a hydraulic cement, water and an additive comprising an aqueous suspension of microspheres containing a water swellable clay suspending agent, placing the cement composition in the annulus between the pipe and the well bore and allowing the cement composition to set.Type: GrantFiled: June 25, 2003Date of Patent: November 2, 2004Assignee: Halliburton Energy Services, Inc.Inventors: Lance E. Brothers, Krista L. Keener, James A. Braden, Jan Pieter Vijn, Bach Dao
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Patent number: 6800128Abstract: A method and composition is provided using whey protein as a retarder in a cementing composition for use in cementing operations in a subterranean zone penetrated by a well bore.Type: GrantFiled: March 19, 2003Date of Patent: October 5, 2004Assignee: Halliburton Energy Services, Inc.Inventors: Bach Dao, Marcel Rietjens, Jan Pieter Vijn
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Patent number: 6776237Abstract: Lightweight cement compositions and methods of cementing a subterranean zone penetrated by a well bore utilizing the compositions are provided. A lightweight cement composition of the invention is basically comprised of a coarse particulate hydraulic cement, an ultrafine particulate hydraulic cement mixture comprised of slag cement and a Portland or equivalent cement, fly ash, fumed silica, hollow glass spheres and water.Type: GrantFiled: February 21, 2003Date of Patent: August 17, 2004Assignee: Halliburton Energy Services, Inc.Inventors: Bach Dao, Krishna M. Ravi, Jan Pieter Vijn, Christine Noik, Alain Rivereau
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Publication number: 20040099416Abstract: Methods of cementing subterranean zones using cement compositions containing biogradable dispersants are provided. The methods are basically comprised of the steps of preparing a hydraulic cement, a biodegradable dispersant comprised of polyaspartic acid containing side chains formed by reacting one or more side chain chemicals with said polyaspartic acid and sufficient water to form a pumpable slurry, placing the cement composition into a zone to be cemented and allowing the cement composition to set into an impermeable solid mass therein.Type: ApplicationFiled: November 17, 2003Publication date: May 27, 2004Inventors: Jan Pieter Vijn, Christian E. Spindler, Gregor Keilhofer, Johaan Plank
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Patent number: 6730636Abstract: Environmentally acceptable well cement fluid loss control additives, cement compositions including the additives and methods of using the compositions are provided. The environmentally acceptable fluid loss control additives are comprised of ethoxylated hydroxyethylcellulose having a reduced molecular weight.Type: GrantFiled: April 30, 2002Date of Patent: May 4, 2004Assignee: Halliburton Energy Services, Inc.Inventors: Jan Pieter Vijn, Bach Dao, Mohand Melbouci
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Publication number: 20040048751Abstract: The present invention provides a cement composition and a process for using the cement composition to inhibit gas migration from a subterranean zone into the cement. The process comprises displacing a gelling additive, preferably comprised within a cement composition, into a well bore such that the gelling additive passes into the subterranean zone, and allowing the gelling additive to form a crosslinked gel in the subterranean zone to inhibit gas migration from the subterranean zone. The crosslinked gel acts as a barrier to gas in the subterranean zone and thereby inhibits the gas from passing into the cement and forming flow channels therein before the cement can set.Type: ApplicationFiled: August 30, 2002Publication date: March 11, 2004Inventors: Bach Dao, Ewout Biezen, Jan Pieter Vijn, Thien Pham
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Publication number: 20040007163Abstract: The present invention provides methods, lightweight well cement compositions and additives for the well cement compositions. The methods of the invention for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure is basically comprised of the steps of providing a lightweight cement composition comprised of a hydraulic cement, water and an additive comprising an aqueous suspension of microspheres containing a water swellable clay suspending agent, placing the cement composition in the annulus between the pipe and the well bore and allowing the cement composition to set.Type: ApplicationFiled: June 25, 2003Publication date: January 15, 2004Inventors: Lance E. Brothers, Krista L. Keener, James A. Braden, Jan Pieter Vijn, Bach Dao
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Publication number: 20040003759Abstract: The present invention provides methods, lightweight well cement compositions and additives for the well cement compositions. The methods of the invention for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure is basically comprised of the steps of providing a lightweight cement composition comprised of a hydraulic cement, water and an additive comprising an aqueous suspension of microspheres containing a water swellable clay suspending agent, placing the cement composition in the annulus between the pipe and the well bore and allowing the cement composition to set.Type: ApplicationFiled: June 25, 2003Publication date: January 8, 2004Inventors: Lance E. Brothers, Krista L. Keener, James A. Braden, Jan Pieter Vijn, Bach Dao
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Publication number: 20030230407Abstract: Methods of cementing subterranean zones using cement compositions containing biodegradable dispersants are provided. The methods are basically comprised of the steps of preparing a hydraulic cement, a biodegradable dispersant comprised of polyaspartic acid containing side chains formed by reacting one or more side chain chemicals with said polyaspartic acid and sufficient water to form a pumpable slurry, placing the cement composition into a zone to be cemented and allowing the cement composition to set into an impermeable solid mass therein.Type: ApplicationFiled: June 13, 2002Publication date: December 18, 2003Inventors: Jan Pieter Vijn, Christian E. Spindler, Gregor Keilhofer, Johann Plank