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公开(公告)号：US20210388265A1
公开(公告)日：2021-12-16
申请号：US17338865
申请日：2021-06-04
IPC分类号： C09K13/08 , C09K13/06 , H01L21/306
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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72.发明申请公开(公告)号：US20210198561A1
公开(公告)日：2021-07-01
申请号：US17195084
申请日：2021-03-08
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：US20210079292A1
公开(公告)日：2021-03-18
申请号：US17010212
申请日：2020-09-02
摘要： A method of spearheading an acid into a wellbore is adapted to avoid the gelation of a friction reducer polymer. The method comprises injecting a synthetic or modified acid composition down a wellbore, the composition comprising: a synthetic or modified acid; a solvent; and a chelating agent. Optionally the composition may comprise a corrosion inhibitor package. The method further includes allowing sufficient time for the synthetic or modified acid composition to react with material which require acidic treatment and injecting a fracturing composition comprising a liquid and a friction reducing polymer down the wellbore.
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公开(公告)号：US10913890B2
公开(公告)日：2021-02-09
申请号：US16189568
申请日：2018-11-13
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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75.发明授权公开(公告)号：US10822535B2
公开(公告)日：2020-11-03
申请号：US15992951
申请日：2018-05-30
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
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：US20200263080A1
公开(公告)日：2020-08-20
申请号：US16747449
申请日：2020-01-20
发明人： Clay Purdy , Markus Weissenberger
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 form the wellbore; and initiating the fracking of the perforated area using a fracking fluid. Also disclosed is a corrosion inhibiting composition for us with the acid composition.
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77.发明申请公开(公告)号：US20200165508A1
公开(公告)日：2020-05-28
申请号：US16691815
申请日：2019-11-22
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C09K8/52 , C23F11/04 , C23F11/14 , C05B17/00 , C05D9/00 , C05B15/00 , C05B11/04 , C09K17/42 , C11D7/32 , C09K17/40 , A23J1/00 , C04B41/00 , C09K8/72 , C04B41/53 , B09C1/08 , B08B3/08 , B01D15/20 , C05C11/00 , C11D3/30 , E21B37/06 , C11D7/08 , C09K17/48 , C09K13/06 , C09K8/54 , C02F1/50 , A23J1/20 , B01J49/60 , B01J49/50 , C04B41/72 , C02F1/66 , A23C21/00 , C05G5/23 , C05G3/80
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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78.发明申请公开(公告)号：US20190292440A1
公开(公告)日：2019-09-26
申请号：US16316895
申请日：2017-07-28
摘要： An aqueous synthetic acid composition for use in oil industry activities, said composition comprising: 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; it can also further comprise a metal iodide or iodate; an alcohol or derivative thereof Said composition demonstrates advantageous properties over known synthetic acids at temperatures above 90° C. Said composition is useful in various oil and gas industry operations. Preferred embodiments of said composition providing substantial advantages in matrix acidizing by increasing the effectiveness of wormholing compared to conventional mineral acids such as HCl.
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公开(公告)号：US10280362B2
公开(公告)日：2019-05-07
申请号：US15160434
申请日：2016-05-20
摘要： An organic acid composition for use in oil industry activities, said composition comprising: methane sulphonic acid; a metal iodide or iodate; and an alcohol or derivative thereof. The uses include: injection/disposal in wells; squeezes and soaks or bullheads; acid fracturing; acid washes or matrix stimulations; fracturing spearheads (breakdowns); pipeline scale treatments; cement breakdowns or perforation cleaning; pH control; and de-scaling applications.
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80.发明申请公开(公告)号：US20190040298A1
公开(公告)日：2019-02-07
申请号：US15992951
申请日：2018-05-30
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C09K8/52 , C09K8/54 , C09K17/48 , C05C11/00 , C05G3/04 , B01J49/50 , B01J49/60 , C09K13/06 , C11D7/08 , C11D3/30 , C04B41/53 , C04B41/72 , C02F1/66 , B01D15/20 , C02F1/50 , A23C21/00 , A23J1/20 , B08B3/08 , E21B37/06 , B09C1/08
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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