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1.发明授权
公开(公告)号：EP1718713B1
公开(公告)日：2009-06-17
申请号：EP05708363.6
申请日：2005-02-15
CPC分类号： C23F11/04 , C09K8/524 , C09K8/54 , C09K8/74 , C23F11/143 , Y10S166/902 , Y10S507/933 , Y10S507/934
摘要： The present invention relates to acidic treatment fluids that comprise an acid fluid and an ester-containing quaternary ammonium compound ("esterquat") and methods of their use. One embodiment of the present invention provides a method of inhibiting metal corrosion during a subterranean treatment operation comprising using an acidic treatment fluid comprising an acidic fluid and an esterquat. Another embodiment of the present invention provides a method of reducing sludge formation during a subterranean treatment operation formation comprising the step of using an acidic treatment fluid comprising an acidic fluid and an esterquat. Another embodiment of the present invention provides a method of inhibiting the formation of emulsions during a subterranean treatment operation comprising using an acidic treatment fluid comprising an acidic fluid and an esterquat. Another embodiment of the present invention provides an acidic subterranean treatment fluid comprising an acidic fluid and an esterquat.
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公开(公告)号：EP2024464A1
公开(公告)日：2009-02-18
申请号：EP07733094.2
申请日：2007-06-06
摘要： Treatment fluids that comprise a phosphorus component useful for inhibiting metal corrosion in acidic environments and associated methods of use are provided. An example of a method of using such treatment fluids may comprise providing a treatment fluid that comprises an aqueous base fluid, a weak acid or salt thereof, and a phosphorus component, and introducing the treatment fluid into a subterranean formation.
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3.发明公开CORROSION INHIBITOR COMPOSITIONS COMPRISING THE REACTION PRODUCT FORMED FROM AN ALDEHYDE WITH A THIOL AND/OR AN AMINE FUNCTIONALIZED RING STRUCTURE AND ASSOCIATED METHODS 审中-公开腐蚀抑制剂组合物，其包括醛的反应产物与硫醇和/或胺官能化的环结构和相关方法
公开(公告)号：EP2419549A1
公开(公告)日：2012-02-22
申请号：EP09796416.7
申请日：2009-12-16
CPC分类号： C23F11/04 , C09K8/74 , C09K2208/32 , C23F11/10 , C23F11/141 , C23F11/149 , C23F11/165
摘要： Provided herein are methods and compositions that include a method comprising contacting a metal surface with an acidic fluid comprising a corrosion inhibitor that comprises a reaction product formed from a direct or an indirect reaction of an aldehyde with a thiol and/or an amine functionalized ring structure. A composition provided includes an acidic treatment fluid that comprises an aqueous-base fluid, and acid, and a corrosion inhibitor that comprises a reaction product formed from a direct or an indirect reaction of an aldehyde with a thiol and/or an amine functionalized ring structure.
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4.发明公开
公开(公告)号：EP1799963A1
公开(公告)日：2007-06-27
申请号：EP05767579.5
申请日：2005-07-29
CPC分类号： C23F11/04 , C09K8/54 , C09K8/74 , C09K8/78 , C23F11/141
摘要： Methods and aqueous acid solutions for acidizing wells containing sludging and emulsifying oil are disclosed. An aqueous acid solution of the invention comprises water, hydrochloric acid, a cationic hydrochloric acid corrosion inhibitor and a conjugate ion pair of a cationic amine oxide surfactant and an anionic surfactant that does not react with the cationic hydrochloric acid corrosion inhibitor.
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5.发明授权
公开(公告)号：EP1799963B1
公开(公告)日：2012-10-31
申请号：EP05767579.5
申请日：2005-07-29
CPC分类号： C23F11/04 , C09K8/54 , C09K8/74 , C09K8/78 , C23F11/141
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公开(公告)号：EP2235234A1
公开(公告)日：2010-10-06
申请号：EP08859223.3
申请日：2008-11-25
CPC分类号： C23F11/04 , C09K8/54 , C09K8/74 , C09K2208/32 , C23F11/12 , Y10S507/939
摘要： Of the many methods and compositions provided herein, one method includes a method comprising contacting a metal surface with an acidic fluid comprising an aqueous base-fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising a compound that corresponds to a formula R1R2XCCOOH, wherein X is a halogen, R1 comprises at least one group selected from the group consisting of a C1-C20 alkyl group, a C3-C20 cycloalkyl group, a C1-C20 oxyalkyl, and a C6-C20 aryl group, and R2 comprises at least one group selected from the group consisting of a C1-C2O alkyl group, a C3-C20 cycloalkyl group, a C1-C20 oxyalkyl, and a C6-C20 aryl group.
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公开(公告)号：EP2235234B1
公开(公告)日：2016-01-06
申请号：EP08859223.3
申请日：2008-11-25
CPC分类号： C23F11/04 , C09K8/54 , C09K8/74 , C09K2208/32 , C23F11/12 , Y10S507/939
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公开(公告)号：EP1929072A1
公开(公告)日：2008-06-11
申请号：EP06779466.9
申请日：2006-09-18
CPC分类号： C09K8/54 , C23F11/04 , C23F11/10 , C23F11/184
摘要： Corrosion inhibitor compositions may include certain combinations of the following components: a group 15 metal source, a cinnamaldehyde compound, an additional aldehyde compound, an acetylenic compound, a surfactant, an iodide source, and a solvent. Certain embodiments may omit one or more of these components. The inhibitor corrosion compositions may possess desirable environmental properties particularly for use in downhole environments. The corrosion inhibitor compositions herein do not require the presence of quaternary ammonium compounds or 'Mannich' condensation compounds.
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9.发明公开
公开(公告)号：EP1718713A2
公开(公告)日：2006-11-08
申请号：EP05708363.6
申请日：2005-02-15
IPC分类号： C09K3/00
CPC分类号： C23F11/04 , C09K8/524 , C09K8/54 , C09K8/74 , C23F11/143 , Y10S166/902 , Y10S507/933 , Y10S507/934
摘要： The present invention relates to acidic treatment fluids that comprise an acid fluid and an ester-containing quaternary ammonium compound ('esterquat') and methods of their use. One embodiment of the present invention provides a method of inhibiting metal corrosion during a subterranean treatment operation comprising using an acidic treatment fluid comprising an acidic fluid and an esterquat. Another embodiment of the present invention provides a method of reducing sludge formation during a subterranean treatment operation formation comprising the step of using an acidic treatment fluid comprising an acidic fluid and an esterquat. Another embodiment of the present invention provides a method of inhibiting the formation of emulsions during a subterranean treatment operation comprising using an acidic treatment fluid comprising an acidic fluid and an esterquat. Another embodiment of the present invention provides an acidic subterranean treatment fluid comprising an acidic fluid and an esterquat.
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