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1.发明授权公开(公告)号：US11920081B2
公开(公告)日：2024-03-05
申请号：US17190690
申请日：2021-03-03
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C09K8/52 , A23C21/00 , A23J1/00 , A23J1/20 , B01D15/20 , B01J49/50 , B01J49/60 , B08B3/08 , B09C1/08 , C02F1/50 , C02F1/66 , C04B41/00 , C04B41/53 , 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 , C11D7/32 , C23F11/04 , C23F11/14 , 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：US11898098B2
公开(公告)日：2024-02-13
申请号：US17824619
申请日：2022-05-25
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： E21B43/26 , C09K8/74 , C09K8/06 , C09K8/54 , E21B41/02 , E21B43/119 , E21B43/28 , E21B43/27 , C09K8/42 , C09K8/46 , C23F11/04 , C09K8/03 , C09K8/60 , E21B43/116 , E21B33/12
CPC分类号： C09K8/74 , C09K8/032 , C09K8/06 , C09K8/426 , C09K8/46 , C09K8/54 , C09K8/602 , C23F11/04 , E21B41/02 , E21B43/119 , E21B43/27 , E21B43/283 , C09K2208/32 , E21B33/12 , E21B43/116
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 us with the acid composition.-
3.发明授权公开(公告)号：US11795381B2
公开(公告)日：2023-10-24
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 , E21B43/22
CPC分类号： C09K8/74 , C09K8/528 , C09K8/54 , C09K8/665 , C09K8/68 , C23F11/04 , C23G1/02 , C23G1/04 , C23G1/088 , E21B43/26 , C09K2208/32
摘要： The invention includes a method of reducing a need to re-acidize a hydrocarbon-containing formation. The method comprises providing a composition a HCl and lysine mixture and water wherein a molar ratio between the HCl and the lysine mixture ranges between 3:1 and 12.5:1, and the composition has an initial pH of less than 1; injecting the composition into the formation; allowing a sufficient time for the composition to become a spent acid composition and to subsequently create wormholes in the formation by dissolving calcium carbonate in the formation; maintaining the dissolved calcium carbonate in suspension in the spent acid composition to prevent reprecipitation of the calcium carbonate into the wormholes; removing the spent acid composition containing the dissolved calcium carbonate from the formation; and wherein a pH of the spent acid composition ranges between 4 and 6.
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公开(公告)号：US20230125900A1
公开(公告)日：2023-04-27
申请号：US18145590
申请日：2022-12-22
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： Methods for the fracking or stimulation of a hydrocarbon-bearing formation are provided in multiple embodiments. According to one method, it comprises the steps of: providing a wellbore having a casing; inserting a plug in the wellbore at a predetermined location; inserting a perforating tool and an acidic composition into the wellbore; wherein the acidic composition includes a corrosion inhibiting composition comprising at least two compounds selected from: Group A-I, and wherein at least two compounds are selected from different groups of the Groups A-I.
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公开(公告)号：US11525085B2
公开(公告)日：2022-12-13
申请号：US17338865
申请日：2021-06-04
IPC分类号： C09K13/08 , H01L21/306 , C09K13/06
摘要： A process for controlling the heat generated during the manufacture an inhibited hydrofluoric acid aqueous composition comprising: hydrofluoric acid in solution; a weak base; and an alkanolamine; said process comprising the steps of: providing a pre-determined amount of weak base; adding a pre-determined amount of said hydrofluoric acid to said weak base and obtaining a solution; adding said alkanolamine to the resulting solution of hydrofluoric acid and weak base; mixing until all components are dissolved; 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：US11407647B2
公开(公告)日：2022-08-09
申请号：US17328791
申请日：2021-05-24
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： E21B43/267 , C09K8/74 , C01D1/04 , C09K8/68 , C09K8/70 , C10G1/04 , C09K8/66 , C10G19/067 , C09K8/80
摘要： An aqueous caustic composition comprising: a caustic component; an amino acid additive adapted to provide an extended buffering effect to the caustic composition when such is exposed to an acid; and water, wherein the caustic component and the amino acid additive are present in a molar ratio ranging from 15:1 to 5:1. Methods of using such compositions are also disclosed.
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公开(公告)号：US11370961B2
公开(公告)日：2022-06-28
申请号：US16839490
申请日：2020-04-03
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：US11319481B2
公开(公告)日：2022-05-03
申请号：US17141393
申请日：2021-01-05
发明人： Clay Purdy , Markus Weissenberger
摘要： An aqueous caustic composition comprising: a caustic component; an additive adapted to provide an extended buffering effect to the caustic composition when such is exposed to acid; and water. Methods of using such compositions are also disclosed.
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公开(公告)号：US11319479B2
公开(公告)日：2022-05-03
申请号：US16814415
申请日：2020-03-10
发明人： Clay Purdy , Markus Weissenberger , Adrienne Lee
摘要： An organic acid composition for use in oil industry activities, said composition comprising an arylsulfonic acid in water as well as the use of said composition to perform various operations in the oil industry. There is also disclosed a solid acid composition comprising a corrosion inhibitor ready for dissolution and use.
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10.发明授权公开(公告)号：US11292961B2
公开(公告)日：2022-04-05
申请号：US16837830
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 , E21B43/22 , E21B37/06 , 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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