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公开(公告)号：US10794527B2
公开(公告)日：2020-10-06
申请号：US15507791
申请日：2015-08-26
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Evgeny Borisovich Barmatov , Trevor Lloyd Hughes
IPC: C09K8/54 , F16L58/10 , C23F11/04 , E21B41/02 , C23F11/173 , E21B43/25 , F16L101/16
Abstract: A method of inhibiting corrosion of metal which will be in contact with aqueous, and possibly acidic, solution comprises contacting the metal with a corrosion inhibiting composition containing more than 30% by weight of one or more organic corrosion inhibiting constituents which are water-insoluble hydrophobic material, and a corrosion inhibitor which contains one or more polymerisable groups containing double or triple bonded carbon, before contacting the metal with the aqueous solution. The method may be used to protect coiled tubing used for matrix acidizing of an oil well by propelling a slug of the corrosion inhibiting composition along the coiled tubing before pumping acid through the tubing.
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公开(公告)号：US20180312980A1
公开(公告)日：2018-11-01
申请号：US15769460
申请日：2016-10-17
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
IPC: C23F11/04 , C09K8/54 , C07D215/06 , C07D215/08 , C07D209/08 , C07D209/14 , C07D295/03
Abstract: A corrosion inhibiting compound with a general structure A-B or A-X-B for inhibition of corrosion of steel in acidic solution. A comprises a heterocyclic ring system having a plurality of cyclic Carbon atoms and at least one cyclic Nitrogen atom, wherein the at least one cyclic Nitrogen atom is neutral under neutral conditions and protonatable under acidic conditions. B comprises at least two unsaturated Carbon atoms. B may comprise a ring system or a polymerisable group.
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公开(公告)号：US09388334B2
公开(公告)日：2016-07-12
申请号：US13870795
申请日：2013-04-25
Applicant: Schlumberger Technology Corporation
Inventor： Trevor Lloyd Hughes , Evgeny Borisovich Barmatov , Jill F. Geddes , Michael J. Fuller , Bruno Drochon , Sergey Makarychev-Mikhailov
IPC: C09K8/66 , E21B43/267 , C09K8/80 , C09K8/70
CPC classification number: C09K8/665 , C09K8/70 , C09K8/805 , C09K2208/08 , C09K2208/28 , E21B43/267
Abstract: A wellbore fluid comprises an aqueous carrier liquid, hydrophobic fibers suspended therein, hydrophobic particulate material also suspended in the carrier liquid, and a gas to wet the surfaces of the particles and fibers and bind them together as agglomerates. The wellbore fluid may be a slickwater fracturing fluid and may be used for fracturing a tight gas reservoir. Using a combination of hydrophobic particulate material, hydrophobic fibers and gas inhibits settling out of the particulate material from an aqueous liquid. Because the gas acts to wet the surfaces of both materials and agglomerates them, the particulate material is made to adhere to the fibers; the fibers form a network which hinders settling of the particulate material adhering to them, and the agglomerates contain gas and so have a bulk density which is less than the specific gravity of the solids contained in the agglomerates.
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公开(公告)号：US11760918B2
公开(公告)日：2023-09-19
申请号：US17053857
申请日：2019-05-08
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION , SCHLUMBERGER NORGE AS , M-I DRILLING FLUIDS U.K. LTD.
Inventor： Paul Barnes , Tore Nordvik , Trevor Lloyd Hughes , Lynne Patricia Crawford , Evgeny Barmatov
IPC: C09K8/54 , C07D239/04 , C23F11/14 , E21B41/02
CPC classification number: C09K8/54 , C07D239/04 , C23F11/149 , E21B41/02 , C09K2208/32
Abstract: Compositions may include a corrosion inhibitor including a heterocyclic diamine prepared from the reaction of an alkyl diamine and an aldehyde, wherein the alkyl diamine has the general formula: R4NH(CH2)nNHR5, where n is an integer between 3 and 6, and R4 and R5 are independently hydrogen or a C2-C30 saturated or unsaturated hydrocarbon radical. Methods may include contacting a metal surface with a corrosion inhibitor composition, wherein the corrosion inhibitor includes a heterocyclic diamine corrosion inhibitor from the reaction of an alkyl diamine and an aldehyde, wherein the alkyl diamine has the general formula: R4NH(CH2)nNHR5, where n is an integer between 3 and 6, and R4 and R5 are independently hydrogen or a C2-C30 saturated or unsaturated hydrocarbon radical.
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公开(公告)号：US11505733B2
公开(公告)日：2022-11-22
申请号：US16849685
申请日：2020-04-15
Applicant: Schlumberger Technology Corporation
Inventor： Trevor Lloyd Hughes , Evgeny Borisovich Barmatov , Lynne Patricia Crawford , Jill F. Geddes , Man Yi Ho
Abstract: An aqueous acid composition that may be used, for example, in a matrix acidizing treatment can include an acid, a polymeric acid corrosion inhibitor, and an acid corrosion inhibitor intensifier. The acid corrosion inhibitor can include iodide ions and metal ions, with the metal ions being one or more of copper, silver, bismuth, or antimony. The molar ratio of metal ions to iodide ions can be 1:X, where X is greater than or equal to 2. The polymer of the polymeric acid corrosion inhibitor can have a molecular weight less than 100,000 g/mol.
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Patent Agency Ranking
公开(公告)号：US11248162B2
公开(公告)日：2022-02-15
申请号：US16824224
申请日：2020-03-19
Applicant: Schlumberger Technology Corporation
Inventor： Jesús Del Barrio , Robert Seth Hartshorne , Trevor Lloyd Hughes , Andrew Meredith
Abstract: A viscosified aqueous solution, optionally for use in a subterranean wellbore, is made by reacting in aqueous solution (i) an initial polymer with either carboxylic acid or amino groups on its polymer chain, (ii) a second compound with an amino group or carboxylic acid group, and (iii) a coupling agent, so that molecules of the second compound join to the polymer chain through amide groups, thereby forming an aqueous solution of a modified polymer which, without separation from the aqueous solution, participates in cross-linking thereby enhancing viscosity of the solution. The second compound may include hydrophobic groups so that the modified polymer contains hydrophobic groups and is able to cross-link with itself or a viscoelastic surfactant through association of hydrophobic groups (without covalent bond formation) in aqueous solution. Such cross-links can reform after the fluid has been subjected to shear.
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公开(公告)号：US20200299569A1
公开(公告)日：2020-09-24
申请号：US16824224
申请日：2020-03-19
Applicant: Schlumberger Technology Corporation
Inventor： Jesús Del Barrio , Robert Seth Hartshorne , Trevor Lloyd Hughes , Andrew Meredith
Abstract: A viscosified aqueous solution, optionally for use in a subterranean wellbore, is made by reacting in aqueous solution (i) an initial polymer with either carboxylic acid or amino groups on its polymer chain, (ii) a second compound with an amino group or carboxylic acid group, and (iii) a coupling agent, so that molecules of the second compound join to the polymer chain through amide groups, thereby forming an aqueous solution of a modified polymer which, without separation from the aqueous solution, participates in cross-linking thereby enhancing viscosity of the solution. The second compound may include hydrophobic groups so that the modified polymer contains hydrophobic groups and is able to cross-link with itself or a viscoelastic surfactant through association of hydrophobic groups (without covalent bond formation) in aqueous solution. Such cross-links can reform after the fluid has been subjected to shear.
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公开(公告)号：US12092594B2
公开(公告)日：2024-09-17
申请号：US17756917
申请日：2020-11-18
Applicant: Schlumberger Technology Corporation
Inventor： Jill F. Geddes , Trevor Lloyd Hughes , Evgeny Borisovich Barmatov
IPC: G01N23/223 , G01B15/02
CPC classification number: G01N23/223 , G01B15/02 , G01N2223/076 , G01N2223/507 , G01N2223/61 , G01N2223/633
Abstract: A method for measuring average thickness of a metal or alloy coating on a metal or alloy substrate using an X-ray fluorescence (XRF) spectrometer is used when the coating has an uneven surface at different distances from a measurement window of the XRF spectrometer. The method includes measuring elemental composition of the coating or substrate using the XRF spectrometer and obtaining the average thickness of the coating using a calibration relationship between coating thickness and elemental composition of the coating or substrate. The metal or alloy coating may be a metal or alloy coating of a plurality of outer armor wires wrapped around a cable. The method may be used to analyze coating thickness changes over time or along the length of the cable, or to analyze a corrosive environment in order to choose optimal material for a metal or alloy coating.
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公开(公告)号：US20210238469A1
公开(公告)日：2021-08-05
申请号：US17053857
申请日：2019-05-08
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION , SCHLUMBERGER NORGE AS , M-I DRILLING FLUIDS U.K. LTD.
Inventor： Paul Barnes , Tore Nordvik , Trevor Lloyd Hughes , Lynne Patricia Crawford , Evgeny Barmatov
IPC: C09K8/54 , C07D239/04 , E21B41/02 , C23F11/14
Abstract: Compositions may include a corrosion inhibitor including a heterocyclic diamine prepared from the reaction of an alkyl diamine and an aldehyde, wherein the alkyl diamine has the general formula: R4NH(CH2)nNHR5, where n is an integer between 3 and 6, and R4 and R5 are independently hydrogen or a C2-C30 saturated or unsaturated hydrocarbon radical. Methods may include contacting a metal surface with a corrosion inhibitor composition, wherein the corrosion inhibitor includes a heterocyclic diamine corrosion inhibitor from the reaction of an alkyl diamine and an aldehyde, wherein the alkyl diamine has the general formula: R4NH(CH2)nNHR5, where n is an integer between 3 and 6, and R4 and R5 are independently hydrogen or a C2-C30 saturated or unsaturated hydrocarbon radical.
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公开(公告)号：US20200332175A1
公开(公告)日：2020-10-22
申请号：US16849685
申请日：2020-04-15
Applicant: Schlumberger Technology Corporation
Inventor： Trevor Lloyd Hughes , Evgeny Borisovich Barmatov , Lynne Patricia Crawford , Jill F. Geddes , Man Yi Ho
Abstract: An aqueous acid composition that may be used, for example, in a matrix acidizing treatment can include an acid, a polymeric acid corrosion inhibitor, and an acid corrosion inhibitor intensifier. The acid corrosion inhibitor can include iodide ions and metal ions, with the metal ions being one or more of copper, silver, bismuth, or antimony. The molar ratio of metal ions to iodide ions can be 1:X, where X is greater than or equal to 2. The polymer of the polymeric acid corrosion inhibitor can have a molecular weight less than 100,000 g/mol.
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