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公开(公告)号：US20240043737A1
公开(公告)日：2024-02-08
申请号：US18481928
申请日：2023-10-05
IPC分类号： C09K8/528
CPC分类号： C09K8/528
摘要： The present invention discloses a novel aqueous composition for use in removing mixed sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group consisting of: Li5DTPA; Na5DTPA; K5DTPA; Cs5DTPA; Na4EDTA; K4EDTA; TEAH4DTPA; and TBAH5DTPA; a dissolution enhancer; optionally a compound such as sodium gluconate or the like and a carboxyl-containing fructan such as carboxymethyl inulin. There is also disclosed methods to use such compositions.
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公开(公告)号：US20240191128A1
公开(公告)日：2024-06-13
申请号：US18583037
申请日：2024-02-21
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C09K8/74 , C09K8/03 , C09K8/06 , C09K8/42 , C09K8/46 , C09K8/54 , C09K8/60 , C23F11/04 , E21B21/00 , E21B33/12 , E21B41/02 , E21B43/116 , E21B43/119 , E21B43/26 , E21B43/27 , E21B43/28
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：US11891703B2
公开(公告)日：2024-02-06
申请号：US18066063
申请日：2022-12-14
发明人： Clay Purdy , Markus Weissenberger
CPC分类号： C23F11/122 , C23F11/144 , C23F11/145 , C23F11/16 , C23G1/06 , C09K8/54 , C09K2208/32
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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公开(公告)号：US12116677B2
公开(公告)日：2024-10-15
申请号：US18153535
申请日：2023-01-12
发明人： Clay Purdy , Markus Weissenberger
CPC分类号： C23F11/04 , C09K8/52 , C09K8/54 , C09K8/584 , C09K8/602 , C09K8/74 , C23G1/06 , C23G1/08 , C09K2208/32
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：US20240301277A1
公开(公告)日：2024-09-12
申请号：US18665394
申请日：2024-05-15
发明人： Clay Purdy , Markus Weissenberger
IPC分类号： C09K8/74 , C09K8/03 , C09K8/06 , C09K8/42 , C09K8/46 , C09K8/54 , C09K8/60 , C23F11/04 , E21B21/00 , E21B33/12 , E21B41/02 , E21B43/116 , E21B43/119 , E21B43/26 , E21B43/27 , E21B43/28
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：US20240279533A1
公开(公告)日：2024-08-22
申请号：US18614191
申请日：2024-03-22
IPC分类号： C09K8/74 , C09K8/03 , C09K8/06 , C09K8/42 , C09K8/46 , C09K8/54 , C09K8/60 , C23F11/04 , E21B21/00 , E21B33/12 , E21B41/02 , E21B43/116 , E21B43/119 , E21B43/26 , E21B43/27 , E21B43/28
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： A method of the invention prepares a hydrocarbon-bearing formation for stimulation. A bottom hole assembly comprising a plug and a perforation tool connected to a wireline is lowered into the wellbore. Acid is injected into the wellbore such that the acid is in direct contact with the perforation tool, wireline and casing of the wellbore. The plug is positioned downhole beyond a location where a first perforation area is to be made in the casing. The perforation tool is activated creating the first perforation area. The acid then contacts the first perforation area and cementitious debris generated from the casing being perforated. The perforation tool is next moved up-hole to a second location and the casing is again perforated to create a second perforation area. The acid also contacts the second perforated area and cementitious debris generated from the perforated casing. The perforation tool is lastly removed from the wellbore.
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公开(公告)号：US20240254383A1
公开(公告)日：2024-08-01
申请号：US18614124
申请日：2024-03-22
IPC分类号： C09K8/74 , C09K8/03 , C09K8/06 , C09K8/42 , C09K8/46 , C09K8/54 , C09K8/60 , C23F11/04 , E21B21/00 , E21B33/12 , E21B41/02 , E21B43/116 , E21B43/119 , E21B43/26 , E21B43/27 , E21B43/28
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： A method of the invention prepares a hydrocarbon-bearing formation for stimulation. A bottom hole assembly comprising a plug and a perforation tool connected to a wireline is lowered into a wellbore having a casing. An acidic composition is injected into the wellbore; wherein a spacer separates the acidic composition from said bottom hole assembly, but the acidic composition is in direct contact with both the wireline and casing. The spacer may be existing water in the wellbore or water injected into the wellbore. The plug is positioned downhole beyond a location where a first perforation area is to be made in the casing. The perforation tool is activated creating the first perforation area. The acid then contacts the first perforation area and cementitious debris generated from the casing being perforated. The perforation tool is next moved up-hole to a second location and the casing is again perforated to create a second perforation area. The acid also contacts the second perforated area and cementitious debris generated from the perforated casing. The perforation tool is lastly removed from the wellbore.
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公开(公告)号：US11795373B2
公开(公告)日：2023-10-24
申请号：US17253748
申请日：2019-06-14
发明人： Clay Purdy , Markus Weissenberger
CPC分类号： C09K8/54 , C09K8/52 , C09K8/74 , C23F11/04 , C23F11/145 , C23F11/162 , C09K2208/32
摘要： A liquid corrosion inhibitor composition for use with acid compositions for use in industrial activities, said corrosion inhibitor composition comprising: a thiourea derivative; a first type of amphoteric surfactant is selected from the group consisting of: a sultaine surfactant; a betaine surfactant; and combinations thereof; a second type of amphoteric surfactant; and a solvent.
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