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公开(公告)号：EP1618282B1
公开(公告)日：2009-06-10
申请号：EP04728371.8
申请日：2004-04-20
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER TECHNOLOGY B.V. , SOFITECH N.V.
IPC分类号： E21B43/27
CPC分类号： C09K8/52 , C09K8/74 , C09K8/845 , C09K8/86 , Y10S507/933
摘要： An aqueous oilfield treatment fluid containing a chelating agent and an HF source is described. This fluid is effective at dissolving siliceous materials such as clays and keeping the dissolved materials in solution. In particular it is effective at preventing re-precipitation of initially-dissolved silicon as silica and therefore reduces damage to sandstones with which it is contacted. Methods are given for using this fluid for sandstone matrix stimulation, removal of clay-containing drilling fluid components and filter cakes from wellbores, sandstone acid fracturing, and gravel pack and proppant pack cleaning.
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公开(公告)号：EP1434927B1
公开(公告)日：2005-12-28
申请号：EP02800099.0
申请日：2002-09-19
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER TECHNOLOGY B.V. , SOFITECH N.V.
发明人： FRENIER, Wayne , CHANG, Frank
IPC分类号： E21B43/27
CPC分类号： C09K8/72 , Y10S507/933 , Y10S507/934
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公开(公告)号：EP1438481B1
公开(公告)日：2006-06-14
申请号：EP02774741.9
申请日：2002-10-22
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER TECHNOLOGY B.V. , SOFITECH N.V.
发明人： FRENIER, Wayne , BRADY, Mark
CPC分类号： C09K8/78 , C09K8/52 , C09K8/528 , C09K2208/32 , C11D7/08 , C11D7/263 , C11D7/265 , C11D7/32 , Y10S507/922 , Y10S507/927 , Y10S507/928
摘要： Treating compositions containing mutual solvents suitable for forming and maintaining single-phase aqueous fluid treating compositions containing very high concentrations of acids and/or chelating agents are described. Methods of use of these treating compositions for dissolving and removing scale and formation matrix material in oil-field treatments such as stimulation and remediation are given.
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公开(公告)号：EP1618282A1
公开(公告)日：2006-01-25
申请号：EP04728371.8
申请日：2004-04-20
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER TECHNOLOGY B.V. , SOFITECH N.V.
IPC分类号： E21B43/27
CPC分类号： C09K8/52 , C09K8/74 , C09K8/845 , C09K8/86 , Y10S507/933
摘要： An aqueous oilfield treatment fluid containing a chelating agent and an HF source is described. This fluid is effective at dissolving siliceous materials such as clays and keeping the dissolved materials in solution. In particular it is effective at preventing re-precipitation of initially-dissolved silicon as silica and therefore reduces damage to sandstones with which it is contacted. Methods are given for using this fluid for sandstone matrix stimulation, removal of clay-containing drilling fluid components and filter cakes from wellbores, sandstone acid fracturing, and gravel pack and proppant pack cleaning.
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公开(公告)号：EP1434927A1
公开(公告)日：2004-07-07
申请号：EP02800099.0
申请日：2002-09-19
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS LIMITED , Schlumberger Technology B.V. , SOFITECH N.V.
发明人： FRENIER, Wayne , CHANG, Frank
IPC分类号： E21B43/27
CPC分类号： C09K8/72 , Y10S507/933 , Y10S507/934
摘要： Aqueous liquid compositions for increasing the permeability of a subterranean formation are disclosed, the compositions being characterized by provision of fluoborate anion (fluoboric acid) and a specified compound or compounds, or mixture thereof, which chelate aluminum ions and aluminum fluoride species. Methods of treating a subterranean formation by injection of the composition(s) into the formation are also described.
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公开(公告)号：EP1438481B8
公开(公告)日：2008-07-16
申请号：EP02774741.9
申请日：2002-10-22
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER TECHNOLOGY B.V. , SOFITECH N.V.
发明人： FRENIER, Wayne , BRADY, Mark
CPC分类号： C09K8/78 , C09K8/52 , C09K8/528 , C09K2208/32 , C11D7/08 , C11D7/263 , C11D7/265 , C11D7/32 , Y10S507/922 , Y10S507/927 , Y10S507/928
摘要： Treating compositions containing mutual solvents suitable for forming and maintaining single-phase aqueous fluid treating compositions containing very high concentrations of acids and/or chelating agents are described. Methods of use of these treating compositions for dissolving and removing scale and formation matrix material in oil-field treatments such as stimulation and remediation are given.
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公开(公告)号：EP1390604B1
公开(公告)日：2004-10-27
申请号：EP02742978.6
申请日：2002-05-10
申请人： SERVICES PETROLIERS SCHLUMBERGER , Schlumberger Holdings Limited , Schlumberger Technology B.V. , SOFITECH N.V.
发明人： FRENIER, Wayne
摘要： A method for increasing the permeability of a subterranean formation is disclosed in which an amount of an aqueous mixture, sufficient to increase the permeability of the formation, comprising specified aminopolycarboxylic anionic species, and specified cationic species, is injected into the formation matrix.
摘要翻译： 公开了一种提高地下地层渗透性的方法，其中将足以增加包含特定的氨基多羧酸阴离子物质和特定的阳离子物质的地层渗透性的含水混合物的量注入到地层基质中。
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公开(公告)号：EP1438481A2
公开(公告)日：2004-07-21
申请号：EP02774741.9
申请日：2002-10-22
申请人： SERVICES PETROLIERS SCHLUMBERGER , Schlumberger Holdings Limited , Schlumberger Technology B.V. , SOFITECH N.V.
发明人： FRENIER, Wayne
CPC分类号： C09K8/78 , C09K8/52 , C09K8/528 , C09K2208/32 , C11D7/08 , C11D7/263 , C11D7/265 , C11D7/32 , Y10S507/922 , Y10S507/927 , Y10S507/928
摘要： Treating compositions containing mutual solvents suitable for forming and maintaining single-phase aqueous fluid treating compositions containing very high concentrations of acids and/or chelating agents are described. Methods of use of these treating compositions for dissolving and removing scale and formation matrix material in oil-field treatments such as stimulation and remediation are given.
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公开(公告)号：EP1390604A1
公开(公告)日：2004-02-25
申请号：EP02742978.6
申请日：2002-05-10
申请人： SERVICES PETROLIERS SCHLUMBERGER , Schlumberger Holdings Limited , Schlumberger Technology B.V. , SOFITECH N.V.
发明人： FRENIER, Wayne
摘要： A method for increasing the permeability of a subterranean formation is disclosed in which an amount of an aqueous mixture, sufficient to increase the permeability of the formation, comprising specified aminopolycarboxylic anionic species, and specified cationic species, is injected into the formation matrix.
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公开(公告)号：EP1556582A1
公开(公告)日：2005-07-27
申请号：EP03776870.2
申请日：2003-10-24
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , SOFITECH N.V.
发明人： STILL, John , DISMUKE, Keith , FRENIER, Wayne
IPC分类号： E21B43/27
CPC分类号： C09K8/06 , C09K8/03 , C09K8/5045 , C09K8/506 , C09K8/72 , C09K8/74 , Y10S507/923 , Y10S507/933
摘要： An acid fracturing method is provided in which the acid is generated in the fracture by hydrolysis of a solid acid-precursor selected from one or more than one of lactide, glycolide, polylactic acid, polyglycolic acid, a copolymer of polylactic acid and polyglycolic acid, a copolymer of glycolic acid with other hydroxy-, carboxylic acid-, or hydroxycarboxylic acid-containing moieties, and a copolymer of lactic acid with other hydroxy-, carboxylic acid or hydroxycarboxylic acid-containing moieties. The solid acid-precursor may be mixed with a solid acid-reactive material to accelerate the hydrolysis and/or coated to slow the hydrolysis. Water-soluble liquid compounds are also given that accelerate the hydrolysis. The method ensures that the acid contacts fracture faces far from the wellbore.
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