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公开(公告)号：US11118272B2
公开(公告)日：2021-09-14
申请号：US16376819
申请日：2019-04-05
Inventor： Ime Bassey Obot , Benedict Ikenna Onyeachu , Mumtaz Ahmad Quraishi
IPC: C23F11/16 , C07D487/04
Abstract: Heterocyclic compounds having fused pyrimidine moieties with electron-donating groups. A method of preparing the heterocyclic compounds via a multicomponent condensation reaction is specified. These compounds are effective against corrosion of metallic substrates in acidic (i.e. CO2), and high salinity environments commonly found in oil and gas industry.
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公开(公告)号：US11124882B2
公开(公告)日：2021-09-21
申请号：US16388610
申请日：2019-04-18
Inventor： Ime Bassey Obot , Saviour A. Umoren , Zuhair M. Gasem
Abstract: Corrosion inhibiting compositions and methods of inhibiting corrosion on a metal surface commonly used in the petroleum industry is disclosed. The corrosion inhibitor includes at least one azole, at least one polypeptide derived from amino acid, at least one intensifier preferably from metal halides, and at least one surfactant. The methods include combining effective amounts of the corrosion inhibitor composition and contacting a metal surface in aqueous environment commonly found in oil and gas industry. The composition is very effective against corrosion of metals in contact with aqueous media when used in a dosage as low as 50 ppm.
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3.发明授权公开(公告)号：US10323327B2
公开(公告)日：2019-06-18
申请号：US15600202
申请日：2017-05-19
Inventor： Ime Bassey Obot , Saviour A. Umoren , Zuhair M. Gasem
Abstract: Corrosion inhibiting compositions and methods of inhibiting corrosion on a metal surface commonly used in the petroleum industry is disclosed. The corrosion inhibitor includes at least one azole, at least one polypeptide derived from amino acid, at least one intensifier preferably from metal halides, and at least one surfactant. The methods include combining effective amounts of the corrosion inhibitor composition and contacting a metal surface in aqueous environment commonly found in oil and gas industry. The composition is very effective against corrosion of metals in contact with aqueous media when used in a dosage as low as 50 ppm.
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公开(公告)号：US12110454B2
公开(公告)日：2024-10-08
申请号：US18621132
申请日：2024-03-29
Inventor： Ime Bassey Obot , Ahmad A. Sorour
CPC classification number: C09K8/74 , C09K8/54 , E21B41/02 , E21B43/25 , C09K2208/32
Abstract: A method of inhibiting corrosion of metal during acid stimulation of an oil and gas well that involves treating the oil and gas well with an acidic treatment fluid that includes 10 to 28 wt. % of an acid, based on a total weight of the acidic treatment fluid, and a corrosion inhibitor composition containing gelatin, wherein the gelatin is present in the acidic treatment fluid in a concentration of 0.1 to 10% by weight per total volume of the acidic treatment fluid.
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公开(公告)号：US11525081B2
公开(公告)日：2022-12-13
申请号：US16397593
申请日：2019-04-29
Inventor： Ime Bassey Obot , Ahmad A. Sorour
Abstract: A method of inhibiting corrosion of metal during acid stimulation of an oil and gas well that involves treating the oil and gas well with an acidic treatment fluid that includes 10 to 28 wt. % of an acid, based on a total weight of the acidic treatment fluid, and a corrosion inhibitor composition containing gelatin, wherein the gelatin is present in the acidic treatment fluid in a concentration of 0.1 to 10% by weight per total volume of the acidic treatment fluid.
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Patent Agency Ranking
公开(公告)号：US11180856B1
公开(公告)日：2021-11-23
申请号：US16904904
申请日：2020-06-18
Inventor： Ime Bassey Obot , Abdelkader Meroufel , Ahmad A. Sorour , Ikenna B. Onyeachu , Saviour A. Umoren , Abdulrhaman Faleh Alenazi , Moses M. Solomon
Abstract: A corrosion inhibitor composition, which includes (i) a date palm leaves extract, (ii) a benzimidazole compound having at least one a carbamate group, (iii) a pyridine compound, (iv) a thiourea compound, (v) a cinnamaldehyde compound, (vi) a metal iodide, (vii) urotropin, and (viii) a base fluid containing an alcohol and an organic acid. A method of inhibiting corrosion of metal during acid cleaning is also disclosed, whereby the metal is treated with an acidic treatment fluid containing 1 to 5 wt. % of an acid, based on a total weight of the acidic treatment fluid, and 0.1 to 5 vol. % of the corrosion inhibitor composition, based on a total volume of the acidic treatment fluid.
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公开(公告)号：US11124883B2
公开(公告)日：2021-09-21
申请号：US16389160
申请日：2019-04-19
Inventor： Ime Bassey Obot , Saviour A. Umoren , Zuhair M. Gasem
Abstract: Corrosion inhibiting compositions and methods of inhibiting corrosion on a metal surface commonly used in the petroleum industry is disclosed. The corrosion inhibitor includes at least one azole, at least one polypeptide derived from amino acid, at least one intensifier preferably from metal halides, and at least one surfactant. The methods include combining effective amounts of the corrosion inhibitor composition and contacting a metal surface in aqueous environment commonly found in oil and gas industry. The composition is very effective against corrosion of metals in contact with aqueous media when used in a dosage as low as 50 ppm.
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公开(公告)号：US12110453B2
公开(公告)日：2024-10-08
申请号：US18621124
申请日：2024-03-29
Inventor： Ime Bassey Obot , Ahmad A. Sorour
CPC classification number: C09K8/74 , C09K8/54 , E21B41/02 , E21B43/25 , C09K2208/32
Abstract: A method of inhibiting corrosion of metal during acid stimulation of an oil and gas well that involves treating the oil and gas well with an acidic treatment fluid that includes 10 to 28 wt. % of an acid, based on a total weight of the acidic treatment fluid, and a corrosion inhibitor composition containing gelatin, wherein the gelatin is present in the acidic treatment fluid in a concentration of 0.1 to 10% by weight per total volume of the acidic treatment fluid.
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公开(公告)号：US10988671B2
公开(公告)日：2021-04-27
申请号：US16796492
申请日：2020-02-20
Inventor： Ime Bassey Obot , Saviour Alphonsus Umoren
Abstract: A method of inhibiting corrosion of metal during acid stimulation of an oil and gas well, whereby the oil and gas well is treated with an acidic treatment fluid that includes 10 to 28 wt. % of an acid, based on a total weight of the acidic treatment fluid, and 0.01 to 5% of a pyrazine corrosion inhibitor by weight per total volume of the acidic treatment fluid, wherein the pyrazine corrosion inhibitor is 2,3-pyrazine dicarboxylic acid, pyrazine-2-carboxamide, 2-methoxy-3-(1-methylpropyl) pyrazine, or combinations thereof.
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公开(公告)号：US12104119B2
公开(公告)日：2024-10-01
申请号：US18621135
申请日：2024-03-29
Inventor： Ime Bassey Obot , Ahmad A. Sorour
CPC classification number: C09K8/74 , C09K8/54 , E21B41/02 , E21B43/25 , C09K2208/32
Abstract: A method of inhibiting corrosion of metal during acid stimulation of an oil and gas well that involves treating the oil and gas well with an acidic treatment fluid that includes 10 to 28 wt. % of an acid, based on a total weight of the acidic treatment fluid, and a corrosion inhibitor composition containing gelatin, wherein the gelatin is present in the acidic treatment fluid in a concentration of 0.1 to 10% by weight per total volume of the acidic treatment fluid.
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