Patents by Inventor Christopher George Osborne
Christopher George Osborne 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: 7306035Abstract: A method of introducing an oil field or gas field production chemical into a hydrocarbon-bearing porous subterranean formation penetrated by a wellbore comprising: injecting a gelling composition comprising an aqueous liquid, an oil field or gas field production chemical, and a gellable polymer through the wellbore into the porous subterranean formation wherein the gellable polymer forms a gel within the pores of the subterranean formation thereby encapsulating the production chemical in the gel; and controllably releasing the production chemical from the gel into a formation fluid.Type: GrantFiled: August 6, 2003Date of Patent: December 11, 2007Assignee: BP Exploration Operating Company LimitedInventors: Ian Ralph Collins, Trevor Jones, Christopher George Osborne
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Publication number: 20030150779Abstract: A process for removing metal ions from crude oil comprising contacting a non-ionic amphiphilic solvent with the crude oil, optionally, in the presence of water, so as to produce a metal ion-containing phase, and separating the metal ion-containing phase from the crude oil.Type: ApplicationFiled: November 26, 2002Publication date: August 14, 2003Inventors: Ian Ralph Collins, Simon Neil Duncum, Christopher George Osborne
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Patent number: 6464859Abstract: This invention relates to a process for deacidifying a crude oil system, said process comprising the steps of: a) contacting the crude oil system with a polar solvent, such that at least part of the organic acid present in the oil is extracted into the solvent as an extract phase, and b) separating said extract phase from the treated crude oil system of step a).Type: GrantFiled: August 29, 2000Date of Patent: October 15, 2002Assignee: BP Exploration Operating Company, Ltd.Inventors: Simon Neil Duncum, Christopher George Osborne
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Publication number: 20020125175Abstract: An improved process is disclosed for removing trace acidic compounds from liquid hydrocarbons. Traces of acidic compounds, including carboxylic acids, H2S, naphthenic acids, et al., are present in most hydrocarbon streams. The presence of these acidic compounds is considered deleterious to accepted product specifications. The trace acidic compounds which interfere are removed via injection of a dilute aqueous alkaline solution into the hydrocarbon stream and passage of this stream through a coalescing bed.Type: ApplicationFiled: November 30, 2001Publication date: September 12, 2002Inventors: Ian Ralph Collins, Simon Nell Duncum, Christopher George Osborne
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Patent number: 6436877Abstract: A method of inhibiting or retarding formation of hydrates from water and a lower alkane, such as methane or ethane, involves adding additives which comprise (i) a corrosion inhibitor and (ii) a salt which is of formula [R1(R2)XR3]+Y−, wherein each of R1, R2 and R3 is bonded directly to X, each of R1 and R2, which may be the same or different is an alkyl group of at least 4 carbons, X is S, NR4 or PR4, wherein each of R3 and R4 which may be the same or different represents hydrogen or an organic group, with the proviso that at least one of R3 and R4 is an organic group of at least 4 carbons, and Y is an anion, the additives being added in an amount effective to inhibit or retard hydrate formation, to a medium susceptible to hydrate formation.Type: GrantFiled: April 4, 2000Date of Patent: August 20, 2002Assignee: BP Exploration Operating Co., Ltd.Inventors: Simon Neil Duncum, Christopher George Osborne, Antony Roland Edwards
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Publication number: 20010056164Abstract: Inhibitors of wax deposition for crude oils are polymers of a monomer with structural units derived from at least one ester (i) of an aliphatic carboxylic acid with an aliphatic alcohol, wherein one of the acid and alcohol is ethylenically unsaturated and the other of the acid and alcohol has a long chain group of 14-40 carbons, and a monomer with structural units derived from a corresponding ester (3) with structural units derived from an aliphatic carboxylic acid and an aliphatic alcohol, wherein one of the acid and alcohol is ethylenically unsaturated and the other has an aliphatic group of 1-13 carbons, such that at least 30% preferably 50-90% of the said aliphatic groups have 15-35 carbons. They are preferably made by transesterification. Blends of such polymers and/or the corresponding homopolymers or copolymers of ester 1 and/or polyalkylene imines with long side chains, and optionally with monomeric polar additives may be used as inhibitors.Type: ApplicationFiled: May 14, 2001Publication date: December 27, 2001Applicant: BP Exploration Operating Company LimitedInventors: Simon Neil Duncum, Philip Kenneth Gordon Hodgson, Keith James, Christopher George Osborne
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Patent number: 6251836Abstract: A hydrate inhibitor comprising a blend of an additive (i) and at least one of an additive (ii) and an additive (iii) wherein additive (i) is a polymer of an ethylenically unsaturated N-heterocyclic carbonyl compound, with 6-8 ring atoms in the heterocyclic ring, additive (ii) is a corrosion inhibitor and additive (iii) is a salt of formula (I):[R1(R2)XR3]+Y− 1/v, I wherein each of R1, R2 and R3 is bonded directly to X, each of R1 and R2, which may be the same or different is an alkyl group of at least 4 carbons, X is S, NR4 or PR4, wherein each of R3 and R4 which may be the same or different represents hydrogen or an organic group, with the proviso that at least one of R3 and R4 is an organic group of at least 4 carbons, especially at least 5 carbons, and Y is an anion of valency v, wherein v is an integer of 1-4.Type: GrantFiled: November 18, 1997Date of Patent: June 26, 2001Assignee: BP Exploration Operating Company LimitedInventors: Simon Neil Duncum, Antony Roland Edwards, Keith James, Christopher George Osborne
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Patent number: 6140276Abstract: A method of reducing the deposition of wax from a crude oil containing wax which comprises adding thereto at least one N-substituted polyalkylene imine which has at least one organic substituent that is a hydroxy-substituted alkyl group of 12-24 carbon atoms.Type: GrantFiled: June 4, 1998Date of Patent: October 31, 2000Assignee: BP Exploration Operating Company LimitedInventors: Simon Neil Duncum, Keith James, Christopher George Osborne
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Patent number: 6063972Abstract: A method of inhibiting or retarding formation of hydrates from water and a lower alkane, such as methane or ethane, involves adding additives which comprise (i) a corrosion inhibitor and (ii) a salt which is of formula [R.sup.1 (R.sup.2)XR.sup.3 ].sup.+ Y.sup.-, wherein each of R.sup.1, R.sup.2 and R.sup.3 is bonded directly to X, each of R.sup.1 and R.sup.2, which may be the same or different is an alkyl group of at least 4 carbons, X is S, NR.sup.4 or PR.sup.4, wherein each of R.sup.3 and R.sup.4 which may be the same or different represents hydrogen or an organic group, with the proviso that at least one of R.sup.3 and R.sup.4 is an organic group of at least 4 carbons, and Y is an anion, the additives being added in an amount effective to inhibit or retard hydrate formation, to a medium susceptible to hydrate formation.Type: GrantFiled: August 17, 1998Date of Patent: May 16, 2000Assignee: BP Exploration Operating Company LimitedInventors: Simon Neil Duncum, Antony Roland Edwards, Christopher George Osborne