Patents Assigned to M-I SWACO Norge AS
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Patent number: 8381811Abstract: The instant disclosure is directed to a method of enhancing adsorption of a salt inhibitor onto a wellbore region, wherein the method comprises preconditioning the wellbore region, emplacing the salt inhibitor into the wellbore region, and shutting in the wellbore region for a period of time to at least initiate adsorption of the salt inhibitor onto the wellbore region. The salt inhibitor comprises an at least partially water soluble compound comprising a Group 3 to Group 15 metal and/or an at least partially water soluble compound having any one of the formulae: wherein X is O or S; and R1, R2, R3, R4, and when present, R5 and/or R6 each independently comprise an organic or an inorganic functional group.Type: GrantFiled: October 15, 2008Date of Patent: February 26, 2013Assignees: M-I SWACO Norge AS, Oilfield Mineral Solutions LimitedInventors: Richard Keatch, Hua Guan
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Patent number: 8220532Abstract: A magnet fixing device in a cleaning tool (1) for use in a borehole where the cleaning tool (1) is externally provided with at least one projection (8) and at least two recesses (6) and where at least one magnet (12) is disposed in the projection (8), as the magnetic field from the at least one magnet (12) is active in that it is arranged to at least attract a magnet sensitive material (20) into a recess (6) or hold the material (20) in the recess (6), and where the magnet (12) runs through the projection (8), whereby the one magnet (12) pole is active in a first recess (6) while the other magnet (12) pole is active in a second recess (6).Type: GrantFiled: June 25, 2008Date of Patent: July 17, 2012Assignee: M-I Swaco Norge ASInventor: Karluf Hagen
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Publication number: 20110237469Abstract: A composition for inhibiting the formation of an emulsion between naphthenic acid and metal ions in a hydrocarbon body, the composition including at least one alkoxylated amine in an amount of up to 30% w/w, at least one acid in an amount of from 2 to 10% w/w and at least one alcohol in an amount of from 30 to 70% w/w. A method for inhibiting the formation of an emulsion between naphthenic acid and metal ions in a hydrocarbon body using such a composition is also proposed.Type: ApplicationFiled: July 29, 2009Publication date: September 29, 2011Applicants: M-I AUSTRALIA PTY LTD., M-I SWACO NORGE ASInventors: Chandrashekhar Khandekar, Rohan Wilson, James Smith
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Publication number: 20110136701Abstract: A water based wellbore fluid that includes an aqueous fluid; a micronized weighting agent; a polysaccharide derivative; and at least one fatty acid ester derivative is disclosed.Type: ApplicationFiled: August 20, 2009Publication date: June 9, 2011Applicant: M-I SWACO NORGE ASInventors: Ole Iacob Prebensen, Monica Norman, Anne Myrvoid Fosse, Anne-Marie Friestad
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Publication number: 20110130298Abstract: A method of optimizing a hydrogen sulfide scavenger blend that includes selecting a hydrogen sulfide scavenger blend comprising at least two hydrogen sulfide scavengers; determining a scavenging capacity for the blend; modifying at least one blend parameter based on the determined scavenging capacity; redetermining the scavenging capacity for the modified blend; and selecting an optimized blend from the blend and the modified blend is disclosed.Type: ApplicationFiled: April 10, 2009Publication date: June 2, 2011Applicant: M-I SWACO NORGE ASInventors: Raquel Rodriguez Gonzalez, Anders Grinrod
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Publication number: 20110024366Abstract: The instant disclosure is directed to a method of reducing the amount of crystallized salt in an aqueous stream comprises the steps of contacting the aqueous stream comprising one or more salts with an amount of a salt inhibitor sufficient to reduce the amount of crystallized salt in the aqueous stream under a set of conditions, and/or to reduce the amount of salt deposition from the aqueous stream that would otherwise occur from the aqueous stream under the essentially identical conditions, wherein the salt inhibitor comprises an at least partially water soluble compound comprising a Group 3 to Group 15 metal and/or an at least partially water soluble compound having any one of the formulae (I), (II), (III): wherein X is O or S; and R1, R2, R3, R4, and when present, R5 and/or R6 each independently comprise an organic or an inorganic functional group. A testing rig is also disclosed.Type: ApplicationFiled: October 15, 2008Publication date: February 3, 2011Applicants: M-I SWACO NORGE AS, OILFIELD MINERAL SOLUTIONS LIMITEDInventors: Richard Keatch, Hua Guan
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Publication number: 20110017460Abstract: The instant disclosure is directed to a method of enhancing adsorption of a salt inhibitor onto a wellbore region, wherein the method comprises preconditioning the wellbore region, emplacing the salt inhibitor into the wellbore region, and shutting in the wellbore region for a period of time to at least initiate adsorption of the salt inhibitor onto the wellbore region. The salt inhibitor comprises an at least partially water soluble compound comprising a Group 3 to Group 15 metal and/or an at least partially water soluble compound having any one of the formulae: wherein X is O or S; and R1, R2, R3, R4, and when present, R5 and/or R6 each independently comprise an organic or an inorganic functional group.Type: ApplicationFiled: October 15, 2008Publication date: January 27, 2011Applicants: M-I SWACO NORGE AS, OILFIELD MINERAL SOLUTIONS LIMITEDInventors: Richard Keatch, Hua Guan
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Publication number: 20110021384Abstract: A method of drilling is disclosed and includes pumping a wellbore fluid into a wellbore through an earth formation, wherein the wellbore fluid comprises a base fluid and a surface active agent capable of altering wettability of fines located in the earth formation, and allowing filtration of at least a portion of the wellbore fluid into the earth formation.Type: ApplicationFiled: November 27, 2008Publication date: January 27, 2011Applicants: M-I SWACO NORGE AS, STATOIL ASAInventors: Russell B. Watson, Patrick Viste, Niall Fleming, Kari Ramstad, Anne Mette Mathisen, Nils Kaageson-Loe
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Patent number: 7871964Abstract: A composition for mitigating or preventing the formation of an emulsion between naphthenic acid and metal cations in a hydrocarbon body, the composition including at least one alkoxylated amine and at least one acid and/or alcohol is disclosed.Type: GrantFiled: July 23, 2008Date of Patent: January 18, 2011Assignees: M-I Australia Pty. Ltd., M-I SWACO Norge ASInventors: James Smith, Chandrashekhar Y. Khandekar, Rohan Wilson
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Publication number: 20100319921Abstract: A system for mixing fluids for oilfield applications, the system including a first storage vessel (101) configured to hold a first material and a first mixing device (108) in fluid communication with the first storage vessel. The system also including a second mixing device (115) in fluid communication with the first mixing device and a second storage vessel (102) in fluid communication with the second mixing device, wherein the second storage vessel is configured to hold a second material. Additionally, the system including a pump (109) in fluid communication with at least the second storage vessel and the first mixing device, wherein the pump is configured to provide a flow of the second material from the second storage vessel to the first mixing device, and wherein the first mixing device is configured to mix the first material and the second material to produce a wellbore fluid.Type: ApplicationFiled: November 19, 2008Publication date: December 23, 2010Applicant: M-I SWACO NORGE ASInventors: Jan Thore Eia, Peter Wright, Magnar Kongestol
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Publication number: 20100186945Abstract: A magnet fixing device in a cleaning tool (1) for use in a borehole where the cleaning tool (1) is externally provided with at least one projection (8) and at least two recesses (6) and where at least one magnet (12) is disposed in the projection (8), as the magnetic field from the at least one magnet (12) is active in that it is arranged to at least attract a magnet sensitive material (20) into a recess (6) or hold the material (20) in the recess (6), and where the magnet (12) runs through the projection (8), whereby the one magnet (12) pole is active in a first recess (6) while the other magnet (12) pole is active in a second recess (6).Type: ApplicationFiled: June 25, 2008Publication date: July 29, 2010Applicant: M-I SWACO NORGE ASInventor: Karluf Hagen