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公开(公告)号：EP2139969A1
公开(公告)日：2010-01-06
申请号：EP08719798.4
申请日：2008-03-20
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , PRAD Research And Development Limited
CPC分类号： C09K8/68 , C09K2208/08 , C09K2208/30
摘要： A method is for treating a subterranean formation penetrated by a wellbore is given which comprises injecting into the subterranean formation a well treatment fluid having a high pH. The well treatment fluid comprises a viscoelastic surfactant having a degradable linkage, a hydrolysable fiber and a pH control material.
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公开(公告)号：EP2951265A1
公开(公告)日：2015-12-09
申请号：EP13874036.0
申请日：2013-01-29
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , Prad Research and Development Limited
CPC分类号： C09K8/36 , C09K8/516 , C09K2208/08 , C09K2208/18 , E21B21/003 , E21B33/138 , E21B43/04 , E21B43/26
摘要： Fluid compositions comprising rigid fibers, flexible fibers and solid plugging particles may effectively control the egress of fluids from a subterranean wellbore into vugs, cracks and fissures in the subterranean formation rock. The compositions may be effective in drilling fluids, cement slurries, gravel packing fluids, acidizing fluids and hydraulic fracturing fluids. Such fluids may also have utility for providing fluid diversion during well stimulation treatments, allowing the stimulation fluid to avoid higher permeability regions in the formation rock and treat the lower permeability regions, thereby improving stimulation results.
摘要翻译： 包含刚性纤维，柔性纤维和固体堵塞颗粒的流体组合物可以有效地控制流体从地下井眼流出到地下岩层中的凹坑，裂缝和裂缝中。 组合物可以在钻井液，水泥浆，砾石填充液，酸化流体和水力压裂液中有效。 这种流体还可用于在井刺激处理期间提供流体分流，允许刺激流体避免地层岩石中的较高渗透性区域并处理较低渗透率区域，从而改善刺激结果。
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公开(公告)号：EP1520086A1
公开(公告)日：2005-04-06
申请号：EP03762670.2
申请日：2003-07-09
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , SOFITECH N.V.
发明人： FU, Diankui
IPC分类号： E21B43/27
CPC分类号： C09K8/74 , C09K2208/30
摘要： Embodiments of the Present Invention relate to a reversibly thickenable non-polymeric fluid that has low viscosity in strong acid, gels when the acid concentration is reduced by only a small amount, and is subsequently decomposed by the acid. In particular it relates to an aqueous mixture of zwitterionic surfactants, inorganic acids, and organic acids Most particularly it relates to the use of this fluid as a diverting agent for easily-damaged sandstones, for example prior to matrix acidizing.
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公开(公告)号：EP1791924B1
公开(公告)日：2008-10-01
申请号：EP05798387.6
申请日：2005-09-15
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V.
发明人： BROWN, J. Ernest , STILL, John W. , FU, Diankui , XIAO, Zhijun
IPC分类号： C09K8/72
摘要： A method for fracturing a subterranean formation is provided in which inert masking material particles are injected into the formation with a dissolution agent so that the masking material inhibits dissolution where it contacts a portion of one or both fracture faces. The undissolved regions provide support to keep the fracture open after the treatment and the dissolved regions provide a conductive pathway for flow of fluid to or from the wellbore.
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公开(公告)号：EP1791924A2
公开(公告)日：2007-06-06
申请号：EP05798387.6
申请日：2005-09-15
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V.
发明人： BROWN, J. Ernest , STILL, John W. , FU, Diankui , XIAO, Zhijun
IPC分类号： C09K8/72
摘要： A method for fracturing a subterranean formation is provided in which inert masking material particles are injected into the formation with a dissolution agent so that the masking material inhibits dissolution where it contacts a portion of one or both fracture faces. The undissolved regions provide support to keep the fracture open after the treatment and the dissolved regions provide a conductive pathway for flow of fluid to or from the wellbore.
摘要翻译： 提供了一种用于压裂地下地层的方法，其中将惰性掩蔽材料颗粒用溶解剂注入地层中，使得掩蔽材料在与一个或两个断裂面的一部分接触时抑制溶解。 未溶解区域提供支撑以在处理之后保持断裂开放，并且溶解区域提供用于流体流入或流出井筒的导电通路。
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公开(公告)号：EP1692242B1
公开(公告)日：2007-05-23
申请号：EP04801526.7
申请日：2004-12-09
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V.
CPC分类号： C09K8/74 , C09K2208/30
摘要： An acidic viscoelastic surfactant fluid composition is formulated with an acid, for example hydrochloric acid, a cationic surfactant, for example a quaternary amine, and a break-enabling sait, for example NH4C1. The fluid composition has low viscosity as formulated, undergoes an increase in viscosity as the acid is consumed when it reacts with an acid-reactive material, and returns to approximately the initial viscosity as the last of the acid is consumed. The fluid composition is used as a diverting fluid or as the main treatment fluid in oilfield treatments such as matrix acidizing and acid fracturing.
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公开(公告)号：EP1520085A1
公开(公告)日：2005-04-06
申请号：EP03762640.5
申请日：2003-07-07
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS LIMITED , Schlumberger Technology B.V. , SOFITECH N.V.
发明人： FU, Diankui , CHANG, Frank
CPC分类号： C09K8/68 , C09K8/74 , C09K8/86 , C09K2208/30
摘要： A method is provided for diverting the majority of the fluid injected into a stratified subterranean formation, that has at least one problematic zone and at least one hydrocarbon zone, into the hydrocarbon zone. In the method, a viscous diverting fluid made with a gelling amount of a surfactant and an acid is injected before the main treatment; after the treatment the acid decomposes the surfactant. The main treatment may be hydraulic fracturing, acid fracturing and matrix acidizing. The fluid used as the diverting fluid may also be used as the carrier fluid in hydraulic fracturing or gravel packing. Destruction of the surfactant alleviates the potential of diverters or carrier fluids to damage formations.
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公开(公告)号：EP1456504A1
公开(公告)日：2004-09-15
申请号：EP02799054.8
申请日：2002-12-06
申请人： Sofitech N.V. , SERVICES PETROLIERS SCHLUMBERGER , Schlumberger Technology B.V. , SCHLUMBERGER HOLDINGS LIMITED
发明人： CHANG, Frank, F. , FU, Diankui
摘要： This Invention relates to methods of treating a subterranean hydrocarbons reservoir comprising contacting the formation with a treating fluid comprising an aqueous solution, an acid, a surfactant acting as gelling agent essentially consisting of erucylamidopropyl betaine (or a protonated/deprotonated homolog or salt thereof). The treating fluid may further comprise a lower n-alcohol for improved temperature stability.
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公开(公告)号：EP1456504B1
公开(公告)日：2007-07-25
申请号：EP02799054.8
申请日：2002-12-06
申请人： SOFITECH N.V. , SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER TECHNOLOGY B.V. , SCHLUMBERGER HOLDINGS LIMITED
发明人： CHANG, Frank, F. , FU, Diankui
摘要： This Invention relates to methods of treating a subterranean hydrocarbons reservoir comprising contacting the formation with a treating fluid comprising an aqueous solution, an acid, a surfactant acting as gelling agent essentially consisting of erucylamidopropyl betaine (or a protonated/deprotonated homolog or salt thereof). The treating fluid may further comprise a lower n-alcohol for improved temperature stability.
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公开(公告)号：EP1322721A2
公开(公告)日：2003-07-02
申请号：EP01926770.7
申请日：2001-04-09
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION , Sofitech N.V. , SERVICES PETROLIERS SCHLUMBERGER , Schlumberger Technology B.V. , SCHLUMBERGER HOLDINGS LIMITED
发明人： PALMER, Bentley, J. , FU, Diankui , CARD, Roger , VOLPERT, Edgar
IPC分类号： C09K7/06
CPC分类号： C09K8/34 , C09K8/32 , Y10S507/925
摘要： Non aqueous base wellbore fluids characterized by enhanced electrical conductivity due to formulation with specified ionic liquids are disclosed. Drilling, completion and workover methods utilizing the wellbore fluids are also disclosed.
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