Patents by Inventor Ulfert Cornelis Klomp
Ulfert Cornelis Klomp 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: 9598628Abstract: A method for inhibiting the plugging of a conduit containing a flowable mixture comprising at least an amount of hydrocarbons capable of forming hydrates in the presence of water and an amount of water, which method comprises adding to the mixture an amount of a functionalized dendrimer effective to inhibit formation and/or accumulation of hydrates in the mixture at conduit temperatures and pressures; and flowing the mixture containing the functionalized dendrimer and any hydrates through the conduit wherein the functionalized dendrimer comprises two or more functional end groups selected from the group consisting of non-cyclic tertiary amine functional end groups, quaternary ammonium functional end groups, polyalkylene glycol functional end groups, quaternary ammonium zwitterionic end groups and phosphate or sulfate end groups.Type: GrantFiled: December 17, 2012Date of Patent: March 21, 2017Assignee: SHELL OIL COMPANYInventor: Ulfert Cornelis Klomp
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Patent number: 9528063Abstract: A method for inhibiting the plugging of a conduit containing a flowable mixture comprising at least an amount of hydrocarbons capable of forming hydrates in the presence of water and an amount of water, which method comprises adding to the mixture an amount of a functionalized dendrimer effective to inhibit formation and/or accumulation of hydrates in the mixture at conduit temperatures and pressures; and flowing the mixture containing the functionalized dendrimer and any hydrates through the conduit wherein the functionalized dendrimer comprises at least one ammonium functional end group.Type: GrantFiled: December 17, 2012Date of Patent: December 27, 2016Assignee: SHELL OIL COMPANYInventor: Ulfert Cornelis Klomp
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Patent number: 9243466Abstract: A methane content of a bottom sample comprising methane hydrate crystals is determined by:—taking a core sample (5) from a bottom sediment (3) in a deepwater area;—storing the core sample (5) in a storage chamber (4);—lifting the storage chamber (4) to a predetermined waterdepth (BGHZ=Base of Gas Hydrate stability Zone) at which any methane hydrate crystals in the core sample (5) dissociate into water and methane; and—measuring an amount of methane released by the lifted core sample (5).Type: GrantFiled: November 15, 2010Date of Patent: January 26, 2016Assignee: Shell Oil CompanyInventors: Ulfert Cornelis Klomp, Thomas Alexander Pasfield, Kjeld Aaby Sørensen
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Publication number: 20150126413Abstract: A method for inhibiting the plugging of a conduit containing a flowable mixture comprising at least an amount of hydrocarbons capable of forming hydrates in the presence of water and an amount of water, which method comprises adding to the mixture an amount of a functionalized dendrimer effective to inhibit formation and/or accumulation of hydrates in the mixture at conduit temperatures and pressures; and flowing the mixture containing the functionalized dendrimer and any hydrates through the conduit wherein the functionalized dendrimer comprises two or more functional end groups selected from the group consisting of non-cyclic tertiary amine functional end groups, quaternary ammonium functional end groups, polyalkylene glycol functional end groups, quaternary ammonium zwitterionic end groups and phosphate or sulfate end groups.Type: ApplicationFiled: December 17, 2012Publication date: May 7, 2015Inventor: Ulfert Cornelis Klomp
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Publication number: 20150024977Abstract: A method for inhibiting the plugging of a conduit containing a flowable mixture comprising at least an amount of hydrocarbons capable of forming hydrates in the presence of water and an amount of water, which method comprises adding to the mixture an amount of a functionalized dendrimer effective to inhibit formation and/or accumulation of hydrates in the mixture at conduit temperatures and pressures; and flowing the mixture containing the functionalized dendrimer and any hydrates through the conduit wherein the functionalized dendrimer comprises at least one polyalkylene glycol end group.Type: ApplicationFiled: December 17, 2012Publication date: January 22, 2015Inventor: Ulfert Cornelis Klomp
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Publication number: 20140346117Abstract: A method for inhibiting the plugging of a conduit containing a flowable mixture comprising at least an amount of hydrocarbons capable of forming hydrates in the presence of water and an amount of water, which method comprises adding to the mixture an amount of a functionalized dendrimer effective to inhibit formation and/or accumulation of hydrates in the mixture at conduit temperatures and pressures; and flowing the mixture containing the functionalized dendrimer and any hydrates through the conduit wherein the functionalized dendrimer comprises at least one quaternary ammonium zwitterionic functional end group.Type: ApplicationFiled: December 17, 2012Publication date: November 27, 2014Inventor: Ulfert Cornelis Klomp
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Publication number: 20140330054Abstract: A method for inhibiting the plugging of a conduit containing a flowable mixture comprising at least an amount of hydrocarbons capable of forming hydrates in the presence of water and an amount of water, which method comprises adding to the mixture an amount of a functionalized dendrimer effective to inhibit formation and/or accumulation of hydrates in the mixture at conduit temperatures and pressures; and flowing the mixture containing the functionalized dendrimer and any hydrates through the conduit wherein the functionalized dendrimer comprises at least one ammonium functional end group.Type: ApplicationFiled: December 17, 2012Publication date: November 6, 2014Inventor: Ulfert Cornelis Klomp
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Patent number: 8678514Abstract: A method for producing hydrocarbons wherein hydrates are excavated from the sea bottom and mixed into a transportable slurry, the slurry being pumped to a support vessel, using near sea bottom positive displacement hydraulic pumps, where the hydrates are converted into a hydrocarbon containing stream, with excavation tailings being pumped down to hydraulic motors to drive the hydraulic pumps.Type: GrantFiled: February 12, 2010Date of Patent: March 25, 2014Assignee: Shell Oil CompanyInventors: Michalakis Efthymiou, Ulfert Cornelis Klomp, Thomas Alexander Pasfield, Kjeld Aaby Sorensen
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Publication number: 20120261191Abstract: A methane content of a bottom sample comprising methane hydrate crystals is determined by:—taking a core sample (5) from a bottom sediment (3) in a deepwater area;—storing the core sample (5) in a storage chamber (4);—lifting the storage chamber (4) to a predetermined waterdepth (BGHZ=Base of Gas Hydrate stability Zone) at which any methane hydrate crystals in the core sample (5) dissociate into water and methane; and—measuring an amount of methane released by the lifted core sample (5).Type: ApplicationFiled: November 15, 2010Publication date: October 18, 2012Inventors: Ulfert Cornelis Klomp, Thomas Alexander Pasfield, Kjeld Aaby Sørensen
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Publication number: 20110309668Abstract: A method for producing hydrocarbons wherein hydrates are excavated from the sea bottom and mixed into a transportable slurry, the slurry being pumped to a support vessel, using near sea bottom positive displacement hydraulic pumps, where the hydrates are converted into a hydrocarbon containing stream, with excavation tailings being pumped down to hydraulic motors to drive the hydraulic pumps.Type: ApplicationFiled: February 12, 2010Publication date: December 22, 2011Inventors: Michalakis Efthymiou, Ulfert Cornelis Klomp, Thomas Alexander Pasfield, Aaby Kjeld Sorensen
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Patent number: 6905605Abstract: A method for inhibiting hydrate formation in a hydrocarbon flow by adding an amount of a dendrimeric compound effective to inhibit formation of hydrates at conduit temperatures and pressures, and flowing the mixture containing the dendrimeric compound and any hydrates through the conduit. Preferably, a hyperbranched polyester amide is used as hydrate formation inhibitor compound.Type: GrantFiled: April 6, 2001Date of Patent: June 14, 2005Assignee: Shell Oil CompanyInventor: Ulfert Cornelis Klomp
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Patent number: 6799634Abstract: A tracer release method for monitoring fluid flow in a well utilizes a deformable container having a liquid tracer material which container has an outlet which debouches into the neck portion of a venturi in a well conduit. The container has a wall which is at least partly exposed to the fluid pressure at the relatively wide in- or outlet of the venturi, so that an amount of tracer is injected continuously or discontinuously into the well effluents which is proportional to the pressure difference p across the venturi, which pressure difference p is indicative of the fluid density &rgr; and squared fluid velocity &ugr;.Type: GrantFiled: November 27, 2002Date of Patent: October 5, 2004Assignee: Shell Oil CompanyInventors: Floor Andre Hartog, Ulfert Cornelis Klomp, Jean Eric Negre, Douwe Johannes Runia, Yves Veran
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Publication number: 20030131991Abstract: A tracer release method for monitoring fluid flow in a well utilizes a deformable container comprising a liquid tracer material which container has an outlet which debouches into the neck portion of a venturi in a well conduit. The container has a wall which is at least partly exposed to the fluid pressure at the relatively wide in- or outlet of the venturi, so that an amount of tracer is injected continuously or discontinuously into the well effluents which is proportional to the pressure difference p across the venturi, which pressure difference p is indicative of the fluid density &rgr; and squared fluid velocity &ugr;.Type: ApplicationFiled: November 27, 2002Publication date: July 17, 2003Inventors: Floor Andre Hartog, Ulfert Cornelis Klomp, Jean Eric Negre, Douwe Johannes Runia, Yves Veran
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Publication number: 20030057158Abstract: A method for inhibiting the plugging of a conduit containing a flowable mixture comprising at least an amount of hydrocarbons capable of forming hydrates in the presence of water, and an amount of water, which method comprises adding to the mixture an amount of a dendrimeric compound effective to inhibit formation of hydrates at conduit temperatures and pressures, and flowing the mixture containing the dendrimeric compound and any hydrates through the conduit. Preferably, a hyperbranched polyester amide is used as hydrate formation inhibitor compound.Type: ApplicationFiled: October 4, 2002Publication date: March 27, 2003Inventor: Ulfert Cornelis Klomp
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Patent number: 5879561Abstract: A method for inhibiting the plugging of a conduit, the conduit containing a flowing mixture comprising an amount of hydrocarbons having from one to eight carbon atoms and an amount of water wherein the amounts of hydrocarbons and water could form hydrates at conduit temperatures and pressures, the method comprising the steps of:adding to the mixture an amount of a hydrate formation inhibitor component of the formula ##STR1## wherein two of R.sub.1 -R.sub.4 are independently normal or branched alkyls having 4 or 5 carbon atoms,two of R.sub.1 -R.sub.4 are independently representing organic moieties having at least 8 carbon atoms,A represents a nitrogen or phosphorus atom, andY represents an anion;the amount of the hydrate formation inhibitor component being effective to inhibit formation of hydrates in the mixture at conduit temperatures and pressures; andflowing the mixture containing the hydrate formation inhibitor component through the conduit.Type: GrantFiled: April 23, 1996Date of Patent: March 9, 1999Assignee: Shell Oil CompanyInventors: Ulfert Cornelis Klomp, Rene Reijnhart
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Patent number: 5648575Abstract: The plugging of conduits containing a mixture of low-boiling hydrocarbons and water in inhibited by adding to the mixture an effective amount of at least one alkylated compound of the general formula formula ##STR1## wherein R.sub.1 and R.sub.2 each are independently chosen from normal or branched alkyls containing a chain of at least 4 carbon atoms,R.sub.5 is an organic moiety containing a chain of at least 4 atoms,X is S, N--R.sub.4 or P--R.sub.4,R.sub.4 is H or an organic substituent, suitably an alkyl or alkenyl group having from 8 to 20 carbon atoms, andY-- is an anion.Type: GrantFiled: January 10, 1995Date of Patent: July 15, 1997Assignee: Shell Oil CompanyInventors: Ulfert Cornelis Klomp, Vitold Raimond Kruka, Rene Reijnhart, Anton Jacobus Weisenborn