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公开(公告)号：US20230272266A1
公开(公告)日：2023-08-31
申请号：US18144934
申请日：2023-05-09
发明人： Clay Purdy , Markus Weissenberger , Cora Gordos
CPC分类号： C09K8/74 , C09K8/528 , C09K2208/32
摘要： An aqueous modified or synthetic acid compositions comprising: an acid; and a first component comprising: an amine and a carboxylic 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 compositions are useful in acidizing or stimulating dolomite formations. Said acid compositions are also useful in creating wormholes in hydrocarbon-containing formations.
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公开(公告)号：US11725288B2
公开(公告)日：2023-08-15
申请号：US16722369
申请日：2019-12-20
发明人： Clay Purdy , Markus Weissenberger
CPC分类号： C23F11/122 , C23F11/04
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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公开(公告)号：US11725135B2
公开(公告)日：2023-08-15
申请号：US17539357
申请日：2021-12-01
CPC分类号： C09K8/74 , C09K8/528 , C09K2208/32
摘要： An inhibited mud acid composition, said composition comprising: hydrofluoric acid in solution; an alkanolamine; and a mineral acid selected from a group consisting of: HCl; MEA-HCl and other modified acids, wherein said alkanolamine and hydrofluoric acid are present in a molar ratio of at least 1:1.
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公开(公告)号：US20230120003A1
公开(公告)日：2023-04-20
申请号：US18069091
申请日：2022-12-20
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
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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35.发明申请公开(公告)号：US20230086463A1
公开(公告)日：2023-03-23
申请号：US18053647
申请日：2022-11-08
IPC分类号： C09K8/74 , C09K8/528 , C09K8/54 , C09K8/66 , C09K8/68 , C23G1/08 , C23G1/02 , C23G1/04 , C23F11/04 , E21B43/26
摘要： An aqueous synthetic acid composition is disclosed for use in oil industry activities, the composition comprising: lysine and hydrogen chloride in a molar ratio ranging from 1 to 1:12.5, preferably from more than 1:5 to 1:8.5. The composition can also further comprise a metal iodide or iodate; an alcohol or derivative thereof. The composition demonstrates advantageous properties over known synthetic acids at temperatures above 90° C. The composition is useful in various oil and gas industry operations. Preferred embodiments of the composition provide substantial advantages in matrix acidizing by increasing the effectiveness of wormholing as compared to conventional mineral acids such as HCl.
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公开(公告)号：US11542608B2
公开(公告)日：2023-01-03
申请号：US16481332
申请日：2018-02-02
发明人： Clay Purdy , Markus Weissenberger
摘要： A corrosion inhibition package for use with an aqueous acid composition, said package comprising: a terpene; a cinnamaldehyde or a derivative thereof; at least one amphoteric surfactant; and a solvent. Also disclosed are compositions comprising said corrosion inhibitor package. Preferably, the corrosion inhibition package meets the environmental requirements for classification as yellow according to the Norwegian North Sea offshore drilling regulatory requirements.
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37.发明授权公开(公告)号：US11512244B2
公开(公告)日：2022-11-29
申请号：US17145881
申请日：2021-01-11
IPC分类号： C09K8/74 , C09K8/528 , C09K8/54 , C09K8/66 , C09K8/68 , C23G1/08 , C23G1/02 , C23G1/04 , C23F11/04 , E21B43/26
摘要： An aqueous synthetic acid composition for use in oil industry activities comprises lysine and hydrogen chloride in a molar ratio ranging from 1:3 to 1:12.5, preferably from more than 1:5 to 1:8.5. The composition can also further comprise a metal iodide or iodate; an alcohol or derivative thereof. The composition demonstrates advantageous properties over known synthetic acids at temperatures above 90° C. The composition is useful in various oil and gas industry operations. Preferred embodiments of the composition provide substantial advantages in matrix acidizing by increasing the effectiveness of wormholing as compared to conventional mineral acids such as HC1.
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38.发明授权公开(公告)号：US11447692B2
公开(公告)日：2022-09-20
申请号：US16837814
申请日：2020-04-01
IPC分类号： C09K8/74 , C09K8/528 , C09K8/54 , C09K8/66 , C09K8/68 , C23G1/08 , C23G1/02 , C23G1/04 , C23F11/04 , E21B43/26
摘要： An aqueous synthetic acid composition is provided for use in oil industry activities. The composition comprises: lysine and hydrogen chloride in a molar ratio ranging from 1:3 to 1:12.5, preferably from more than 1:5 to 1:8.5. The composition may further comprise a metal iodide or iodate and an alcohol or derivative thereof. The composition demonstrates advantageous properties for synthetic acids at temperatures above 90° C. The composition is useful in various oil and gas industry operations. Preferred embodiments of the composition provide substantial advantages in matrix acidizing by increasing the effectiveness of wormholing.
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公开(公告)号：US11293106B2
公开(公告)日：2022-04-05
申请号：US16722170
申请日：2019-12-20
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C23F11/16 , C09K8/52 , C09K8/60 , C09K8/68 , C09K8/74 , C09K8/86 , C23F11/04 , C23F11/12 , C09K8/54
摘要： Method of minimizing pitting corrosion at temperatures above 130° C., wherein said method comprises: providing an acidic fluid comprising an alkylsulfonic acid; providing at least one corrosion inhibitor compound comprising an organic compound comprising at least two aldehyde functional groups; combining said acidic fluid with said at least one corrosion inhibitor compound; exposing said mixed fluid to a metallic surface at a temperature of at least 130° C.; and allowing said mixed fluid sufficient time of exposure to a metal to accomplish a pre-determined function.
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公开(公告)号：US20210380906A1
公开(公告)日：2021-12-09
申请号：US17338361
申请日：2021-06-03
发明人： Clay Purdy , Markus Weissenberger , Kyle G. Wynnyk
摘要： A modified aqueous acid composition comprising: nitric acid; sulfuric acid; a compound comprising an amine moiety and a sulfonic acid moiety; and a peroxide. Also disclosed are methods of using such composition.
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