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公开(公告)号：US12018210B2
公开(公告)日：2024-06-25
申请号：US18069091
申请日：2022-12-20
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： E21B43/28 , C09K8/03 , C09K8/06 , C09K8/42 , C09K8/46 , C09K8/54 , C09K8/60 , C09K8/74 , C23F11/04 , E21B21/00 , E21B41/02 , E21B43/119 , E21B43/26 , E21B43/27 , E21B33/12 , E21B43/116
CPC分类号： C09K8/74 , C09K8/032 , C09K8/06 , C09K8/426 , C09K8/46 , C09K8/54 , C09K8/602 , C23F11/04 , E21B21/00 , E21B41/02 , E21B43/119 , E21B43/26 , E21B43/27 , E21B43/283 , C09K2208/32 , E21B33/12 , E21B43/116
摘要： The invention includes methods for stimulating a hydrocarbon-bearing formation by perforating a wellbore and introducing an acidic composition in the wellbore. A preferred embodiment includes inserting an isolation plug in the wellbore at a predetermined location followed by inserting a perforating tool and a breakdown acid into the wellbore. The wellbore is perforated by the tool to create a perforated area. The breakdown acid is allowed to come into contact with the perforated area for a predetermined period of time sufficient to prepare the formation for stimulation. The tool is then removed from the wellbore wherein stimulation of the perforated area is thereby initiated. Also disclosed is a corrosion inhibiting composition for use with the acidic composition.
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公开(公告)号：US11981578B2
公开(公告)日：2024-05-14
申请号：US16839570
申请日：2020-04-03
摘要： An inhibited hydrofluoric acid aqueous composition, said composition comprising: hydrofluoric acid in solution; and an alkanolamine; wherein said alkanolamine and hydrofluoric acid are present in a molar ratio of at least 1:1.
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3.发明授权公开(公告)号：US11879092B2
公开(公告)日：2024-01-23
申请号：US16691815
申请日：2019-11-22
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C09K8/52 , A23C21/00 , C02F1/66 , C04B41/53 , C04B41/72 , B01J49/50 , C09K8/72 , C05B11/04 , C04B41/00 , A23J1/00 , C05B15/00 , C09K17/40 , C23F11/14 , C11D7/32 , C05D9/00 , C05B17/00 , C23F11/04 , C09K17/42 , C05G3/80 , C05G5/23 , B01J49/60 , A23J1/20 , B01D15/20 , B08B3/08 , B09C1/08 , C02F1/50 , C05C11/00 , C09K8/54 , C09K13/06 , C09K17/48 , C11D3/30 , C11D7/08 , E21B37/06 , C02F5/12
CPC分类号： C09K8/52 , A23C21/00 , A23J1/00 , A23J1/202 , B01D15/203 , B01J49/50 , B01J49/60 , B08B3/08 , B09C1/08 , C02F1/50 , C02F1/66 , C04B41/009 , C04B41/5315 , C04B41/5353 , C04B41/72 , C05B11/04 , C05B15/00 , C05B17/00 , C05C11/00 , C05D9/00 , C05G3/80 , C05G5/23 , C09K8/54 , C09K8/72 , C09K13/06 , C09K17/40 , C09K17/42 , C09K17/48 , C11D3/30 , C11D7/08 , C11D7/3218 , C23F11/04 , C23F11/142 , E21B37/06 , C02F5/125 , C09K2208/32 , C04B41/009 , C04B28/02
摘要： An aqueous modified acid composition for industrial activities, said composition comprising: an alkanolamine and strong acid in a molar ratio of not less than 1:15, preferably not less than 1:10; it can also further comprise a metal iodide or iodate. Said composition demonstrates advantages over known conventional acids and modified acids.
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公开(公告)号：US11591696B2
公开(公告)日：2023-02-28
申请号：US16465665
申请日：2017-11-30
发明人： Clay Purdy , Markus Weissenberger
摘要： An inhibition corrosion package for use with an acidic composition, where the package comprises a terpene component; a propargyl alcohol or derivative thereof; at least one amphoteric surfactant; and a solvent. Also disclosed are acidic compositions combining the corrosion inhibition package according to a preferred embodiment of the present invention for use in various industrial operations including but not limited to oil and gas operations. Also disclosed are methods of use of such compositions.
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公开(公告)号：US20230034895A1
公开(公告)日：2023-02-02
申请号：US17934293
申请日：2022-09-22
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C09K8/74 , E21B41/02 , C09K8/06 , E21B21/00 , E21B43/26 , C09K8/03 , C09K8/46 , C23F11/04 , C09K8/42 , C09K8/60 , E21B43/28 , C09K8/54 , E21B43/27 , E21B43/119 , E21B43/116 , E21B33/12
摘要： A method for the fracking or stimulation of a hydrocarbon-bearing formation, said method comprising the steps of: providing a wellbore in need of stimulation; inserting a plug in the wellbore at a predetermined location; inserting a perforating tool and a spearhead or breakdown acid into the wellbore; positioning the tool at said predetermined location; perforating the wellbore with the tool thereby creating a perforated area; allowing the spearhead acid to come into contact with the perforated area for a predetermined period of time sufficient to prepare the formation for fracking or stimulation; removing the tool from the wellbore; and initiating the fracking of the perforated area using a fracking fluid. Also disclosed is a corrosion inhibiting composition for use with the acid composition.
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公开(公告)号：US11492542B2
公开(公告)日：2022-11-08
申请号：US16408176
申请日：2019-05-09
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C09K8/74 , C09K8/06 , C09K8/54 , E21B21/00 , E21B41/02 , E21B43/26 , E21B43/119 , E21B43/28 , E21B43/27 , C09K8/42 , C09K8/46 , C23F11/04 , C09K8/03 , C09K8/60 , E21B43/116 , E21B33/12
摘要： A method for the stimulation of a hydrocarbon-bearing formation, said method comprising the steps of: providing a wellbore in need of stimulation; inserting a plug in the wellbore at a location slightly beyond a predetermined location; inserting a perforating tool and a spearhead or breakdown acid into the wellbore; positioning the tool at said predetermined location; perforating the wellbore with the tool thereby creating a perforated area; allowing the spearhead acid to come into contact with the perforated area for a predetermined period of time sufficient to prepare the formation for stimulation; removing the tool form the wellbore; and initiating the stimulation of the perforated area using a stimulation fluid. Also disclosed is a corrosion inhibiting composition for use with the acid composition.
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7.发明申请公开(公告)号：US20210253936A1
公开(公告)日：2021-08-19
申请号：US17190624
申请日：2021-03-03
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C09K8/52 , A23C21/00 , C02F1/66 , C04B41/53 , C04B41/72 , B01J49/50 , C09K8/72 , C05B11/04 , C04B41/00 , A23J1/00 , C05B15/00 , C09K17/40 , C23F11/14 , C11D7/32 , C05D9/00 , C05B17/00 , C23F11/04 , C09K17/42 , C05G3/80 , C05G5/23 , B01J49/60 , A23J1/20 , B01D15/20 , B08B3/08 , B09C1/08 , C02F1/50 , C05C11/00 , C09K8/54 , C09K13/06 , C09K17/48 , C11D3/30 , C11D7/08 , E21B37/06
摘要： An aqueous modified acid composition for industrial activities, said composition comprising: an alkanolamine and strong acid in a molar ratio of not less than 1:15, preferably not less than 1:10; it can also further comprise a metal iodide or iodate. Said composition demonstrates advantages over known conventional acids and modified acids.
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公开(公告)号：US20210189226A1
公开(公告)日：2021-06-24
申请号：US17126729
申请日：2020-12-18
发明人： Clay Purdy , Markus Weissenberger , Cora Gordos
摘要： An aqueous modified or synthetic acid composition comprising: an acid; a first component comprising: an amine and a carboxylic acid group; a second component comprising: an amine and a sulfonic acid group; wherein said first component and said acid are present in a molar ratio ranging from 1:3 to 1:15, more preferably from 1:3 to 1:12.5. Said acid composition is preferably used in acidizing or stimulating dolomite formations. Disclosed also are methods involving the use of said acid composition.
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9.发明授权公开(公告)号：US10982133B2
公开(公告)日：2021-04-20
申请号：US16226256
申请日：2018-12-19
发明人： Clay Purdy , Markus Weissenberger
摘要： An aqueous modified acid composition for use in oil industry activities, said composition comprising: an amino acid, an alkanolamine and strong acid wherein the mineral acid:alkanolamine/amino acid are present in a molar ratio of not more than 15:1, preferably not more than 10:1; it can also further comprise a metal iodide or iodate. Said composition demonstrates advantages over known conventional acids and modified acids.
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公开(公告)号：US20200224097A1
公开(公告)日：2020-07-16
申请号：US16722369
申请日：2019-12-20
发明人： Clay Purdy , Markus Weissenberger
摘要： An inhibition corrosion package for use with an acidic composition, where the package comprises a dialdehyde-containing hydrocarbon component; at least one surfactant; optionally, a propargyl alcohol or derivative thereof; and a solvent. Also disclosed are acidic compositions combining the corrosion inhibition package according to a preferred embodiment of the present invention for use in various industrial operations including but not limited to oil and gas operations. Also disclosed are methods of use of such compositions.
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