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1. 发明授权

US07402549B2 Viscoelastic surfactant rheology modification 有权
标题翻译：粘弹性表面活性剂流变改性
公开(公告)号：US07402549B2
公开(公告)日：2008-07-22
申请号：US11012446
申请日：2004-12-15
申请人： Yiyan Chen , Jesse C. Lee , Philip F. Sullivan , Timothy L. Pope
发明人： Yiyan Chen , Jesse C. Lee , Philip F. Sullivan , Timothy L. Pope
IPC分类号： C09K8/58 , C09K8/68 , E21B21/00
CPC分类号： C09K8/68 , C09K8/602 , C09K2208/30
摘要： A method for shortening the shear recovery time of cationic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of a rheology enhancer selected from partially hydrolyzed polyvinyl ester and partially hydrolyzed polyacrylates. The rheology enhancer also increases fluid viscosity and very low rheology enhancer concentration is needed. Preferred surfactants are betaines and quaternary amines. The fluids are useful in oilfield treatments, for example fracturing and gravel packing.
摘要翻译：通过添加有效量的选自部分水解的聚乙烯酯和部分水解的聚丙烯酸酯的流变增强剂来缩短阳离子，两性离子和两性粘弹性表面活性剂流体体系的剪切恢复时间的方法。流变增强剂还增加了流体粘度，并且需要非常低的流变学增强剂浓度。优选的表面活性剂是甜菜碱和季胺。这些流体可用于油田处理，例如压裂和砾石填充。

2. 发明授权

US07398826B2 Well treatment with dissolvable polymer 有权
标题翻译：用可溶性聚合物处理
公开(公告)号：US07398826B2
公开(公告)日：2008-07-15
申请号：US11316021
申请日：2005-12-21
申请人： Ann M. W. Hoefer , Philip F. Sullivan , Golchehreh Salamat , Curtis L. Boney , Jesse C. Lee , Yiyan Chen , Dean M. Willberg , Marina Bulova , Christopher N. Fredd , Belgin Baser , Timothy L. Pope
发明人： Ann M. W. Hoefer , Philip F. Sullivan , Golchehreh Salamat , Curtis L. Boney , Jesse C. Lee , Yiyan Chen , Dean M. Willberg , Marina Bulova , Christopher N. Fredd , Belgin Baser , Timothy L. Pope
IPC分类号： E21B43/267 , E21B43/22 , E21B21/00 , C09K8/80 , C09K8/035
CPC分类号： C09K8/516 , C09K8/12 , C09K8/506 , C09K8/5083 , C09K8/512 , C09K8/52 , C09K8/68 , C09K8/70 , C09K8/80 , C09K2208/08 , C09K2208/26
摘要： Well treatment is disclosed that includes injecting a well treatment fluid with insoluble polyol polymer such as polyvinyl alcohol (PVOH) dispersed therein, depositing the insoluble polymer in the wellbore or an adjacent formation, and thereafter dissolving the polymer by reducing salinity and/or increasing temperature conditions in the environment of the polymer deposit. The method is disclosed for filter cake formation, fluid loss control, drilling, hydraulic fracturing and fiber assisted transport, where removal of the polyol at the end of treatment or after treatment is desired. The method is also disclosed for providing dissolved polyol as a delayed breaker in crosslinked polymer viscosified systems and viscoelastic surfactant systems. Also disclosed are well treatment fluids containing insoluble amorphous or at least partially crystalline polyol, and a PVOH fiber composition wherein the fibers are stabilized from dissolution by salinity.
摘要翻译：公开了一种井处理方法，包括用不溶性多元醇聚合物（如分散在其中的聚乙烯醇（PVOH））注入井处理流体，将不溶性聚合物沉积在井筒或邻近地层中，然后通过降低盐度和/或升高温度溶解聚合物聚合物沉积环境条件。公开了用于滤饼形成，流体损失控制，钻井，水力压裂和纤维辅助运输的方法，其中期望在处理结束或处理后去除多元醇。还公开了用于在交联聚合物增粘体系和粘弹性表面活性剂体系中提供溶解的多元醇作为延迟的破乳剂的方法。还公开了含有不溶性无定形或至少部分结晶多元醇的良好处理液，以及其中纤维通过盐度溶解而稳定的PVOH纤维组合物。

3. 发明申请

US20080070813A1 Oxidative Internal Breaker for Viscoelastic Surfactant Fluids 有权
标题翻译：用于粘弹性表面活性剂流体的氧化内部断路器
公开(公告)号：US20080070813A1
公开(公告)日：2008-03-20
申请号：US11532565
申请日：2006-09-18
申请人： Lijun Lin , Yiyan Chen , Philip F. Sullivan , Belgin Baser , Carlos Abad , Jesse C. Lee
发明人： Lijun Lin , Yiyan Chen , Philip F. Sullivan , Belgin Baser , Carlos Abad , Jesse C. Lee
IPC分类号： C09K8/00 , E21B43/00
CPC分类号： C09K8/68 , C09K8/602 , C09K2208/26
摘要： Compositions and methods are given for delayed breaking of viscoelastic surfactant gels inside formation pores, particularly for use in hydraulic fracturing. Breaking inside formation pores is accomplished without mechanical intervention or use of a second fluid. Oxidizing agents such as air, oxygen, persulfates, bromates, peroxides, and others are used. The break may be accelerated, for example with a free radical propagating species, or retarded, for example with an oxygen scavenger. In certain brines, for example bromide brines, certain zwitterionic viscoelastic fluid systems that can decarboxylate and that require an anion-containing co-surfactant undergo delayed degradation if oxygen is present, for example from fluid preparation or in a foam.
摘要翻译：给出组合物和方法用于延迟破裂地层孔隙内的粘弹性表面活性剂凝胶，特别是用于水力压裂。破碎内部形成孔隙是在没有机械干预或使用第二流体的情况下完成的。使用氧化剂如空气，氧气，过硫酸盐，溴酸盐，过氧化物等。可以加速断裂，例如用自由基传播物质或延迟的，例如用氧清除剂。在某些盐水中，例如溴化物盐水，可以脱羧并且需要含阴离子的辅助表面活性剂的某些两性离子粘弹性流体体系如果存在氧，例如从流体制备或泡沫中经历延迟降解。

4. 发明授权

US07857051B2 Internal breaker for oilfield treatments 有权
公开(公告)号：US07857051B2
公开(公告)日：2010-12-28
申请号：US12723760
申请日：2010-03-15
申请人： Carlos Abad , Jesse C. Lee , Philip F. Sullivan , Erik Nelson , Yiyan Chen , Belgin Baser , Lijun Lin
发明人： Carlos Abad , Jesse C. Lee , Philip F. Sullivan , Erik Nelson , Yiyan Chen , Belgin Baser , Lijun Lin
IPC分类号： E21B43/267 , E21B43/27 , C09K8/68 , C09K8/76
CPC分类号： C09K8/68 , C09K8/508 , C09K8/5751 , C09K8/76 , C09K2208/18 , C09K2208/26 , C09K2208/30 , Y10S507/922 , Y10S507/923
摘要： A composition and method for improving the fluid efficiency of many oilfield treatments is given. The composition is a solid additive, in a viscosified fluid, in a size range small enough that it enters formation pores; it optionally bridges there to form an internal filter cake, and then decomposes to provide a breaker for the viscosifying system for the fluid. Examples of suitable additives include waxes, polyesters, polycarbonates, polyacetals, polymelamines, polyvinyl chlorides, and polyvinyl acetates. Degradation of the additive may be accelerated or delayed.

5. 发明申请

US20100163228A1 INTERNAL BREAKER FOR OILFIELD TREATMENTS 有权
标题翻译：内燃机处理用内燃机
公开(公告)号：US20100163228A1
公开(公告)日：2010-07-01
申请号：US12723760
申请日：2010-03-15
申请人： Carlos Abad , Jesse C. Lee , Philip F. Sullivan , Erik Nelson , Yiyan Chen , Belgin Baser , Lijun Lin
发明人： Carlos Abad , Jesse C. Lee , Philip F. Sullivan , Erik Nelson , Yiyan Chen , Belgin Baser , Lijun Lin
IPC分类号： E21B43/22
CPC分类号： C09K8/68 , C09K8/508 , C09K8/5751 , C09K8/76 , C09K2208/18 , C09K2208/26 , C09K2208/30 , Y10S507/922 , Y10S507/923
摘要： A composition and method for improving the fluid efficiency of many oilfield treatments is given. The composition is a solid additive, in a viscosified fluid, in a size range small enough that it enters formation pores; it optionally bridges there to form an internal filter cake, and then decomposes to provide a breaker for the viscosifying system for the fluid. Examples of suitable additives include waxes, polyesters, polycarbonates, polyacetals, polymelamines, polyvinyl chlorides, and polyvinyl acetates. Degradation of the additive may be accelerated or delayed.
摘要翻译：给出了一种用于提高许多油田处理流体效率的组合物和方法。该组合物是一种固体添加剂，在粘稠流体中，其尺寸范围足够小，使其进入地层孔; 它可选地在那里桥接以形成内部滤饼，然后分解以提供用于流体的增粘系统的断路器。合适的添加剂的实例包括蜡，聚酯，聚碳酸酯，聚缩醛，聚蜜胺，聚氯乙烯和聚乙酸乙烯酯。添加剂的降解可能会加速或延迟。

6. 发明授权

US07879770B2 Oxidative internal breaker for viscoelastic surfactant fluids 有权
标题翻译：用于粘弹性表面活性剂流体的氧化内部破碎机
公开(公告)号：US07879770B2
公开(公告)日：2011-02-01
申请号：US11532565
申请日：2006-09-18
申请人： Lijun Lin , Yiyan Chen , Philip F. Sullivan , Belgin Baser , Carlos Abad , Jesse C. Lee
发明人： Lijun Lin , Yiyan Chen , Philip F. Sullivan , Belgin Baser , Carlos Abad , Jesse C. Lee
IPC分类号： C09K8/74 , C09K8/68 , C09K8/524 , C09K8/60 , C09K8/528
CPC分类号： C09K8/68 , C09K8/602 , C09K2208/26
摘要： Compositions and methods are given for delayed breaking of viscoelastic surfactant gels inside formation pores, particularly for use in hydraulic fracturing. Breaking inside formation pores is accomplished without mechanical intervention or use of a second fluid. Oxidizing agents such as air, oxygen, persulfates, bromates, peroxides, and others are used. The break may be accelerated, for example with a free radical propagating species, or retarded, for example with an oxygen scavenger. In certain brines, for example bromide brines, certain zwitterionic viscoelastic fluid systems that can decarboxylate and that require an anion-containing co-surfactant undergo delayed degradation if oxygen is present, for example from fluid preparation or in a foam.
摘要翻译：给出组合物和方法用于延迟破裂地层孔隙内的粘弹性表面活性剂凝胶，特别是用于水力压裂。破碎内部形成孔隙是在没有机械干预或使用第二流体的情况下完成的。使用氧化剂如空气，氧气，过硫酸盐，溴酸盐，过氧化物等。可以加速断裂，例如用自由基传播物质或延迟的，例如用氧清除剂。在某些盐水中，例如溴化物盐水，可以脱羧并且需要含阴离子的辅助表面活性剂的某些两性离子粘弹性流体体系如果存在氧，例如从流体制备或泡沫中经历延迟降解。

7. 发明授权

US07677311B2 Internal breaker for oilfield treatments 失效
标题翻译：用于油田处理的内部破碎机
公开(公告)号：US07677311B2
公开(公告)日：2010-03-16
申请号：US11532553
申请日：2006-09-18
申请人： Carlos Abad , Jesse C. Lee , Philip F. Sullivan , Erik Nelson , Yiyan Chen , Belgin Baser , Lijun Lin
发明人： Carlos Abad , Jesse C. Lee , Philip F. Sullivan , Erik Nelson , Yiyan Chen , Belgin Baser , Lijun Lin
IPC分类号： E21B43/267 , E21B43/27 , C09K8/68 , C09K8/76
CPC分类号： C09K8/68 , C09K8/508 , C09K8/5751 , C09K8/76 , C09K2208/18 , C09K2208/26 , C09K2208/30 , Y10S507/922 , Y10S507/923
摘要： A composition and method for improving the fluid efficiency of many oilfield treatments is given. The composition is a solid additive, in a viscosified fluid, in a size range small enough that it enters formation pores; it optionally bridges there to form an internal filter cake, and then decomposes to provide a breaker for the viscosifying system for the fluid. Examples of suitable additives include waxes, polyesters, polycarbonates, polyacetals, polymelamines, polyvinyl chlorides, and polyvinyl acetates. Degradation of the additive may be accelerated or delayed.
摘要翻译：给出了一种用于提高许多油田处理流体效率的组合物和方法。该组合物是一种固体添加剂，在粘稠流体中，其尺寸范围足够小，使其进入地层孔; 它可选地在那里桥接以形成内部滤饼，然后分解以提供用于流体的增粘系统的断路器。合适的添加剂的实例包括蜡，聚酯，聚碳酸酯，聚缩醛，聚蜜胺，聚氯乙烯和聚乙酸乙烯酯。添加剂的降解可能会加速或延迟。

8. 发明授权

US07219731B2 Degradable additive for viscoelastic surfactant based fluid systems 有权
标题翻译：用于粘弹性表面活性剂的流体系统的可降解添加剂
公开(公告)号：US07219731B2
公开(公告)日：2007-05-22
申请号：US11159023
申请日：2005-06-22
申请人： Philip F. Sullivan , J Ernest Brown , Jesse C. Lee , Golchehreh Salamat
发明人： Philip F. Sullivan , J Ernest Brown , Jesse C. Lee , Golchehreh Salamat
IPC分类号： E21B43/04 , E21B43/22 , E21B43/267
CPC分类号： C09K8/68 , C09K8/506 , C09K8/62 , C09K8/70 , C09K8/72 , C09K8/74 , C09K2208/26 , C09K2208/30 , Y10S507/902
摘要： A method is given for treating a subterranean formation penetrated by a wellbore with a viscosified fluid. The fluid contains a solid hydrolysable polyacid that upon dissolution and hydrolysis releases an acid that is a breaker for the viscosifying system. Suitable solid hydrolysable polyacids include polylactic acid and polyglycolic acid. The fluid also contains a pH control agent, present in an amount sufficient to neutralize any acid present in the solid hydrolysable polyacid before the injection and to neutralize any acid generated by the solid hydrolysable polyacid during the injection, so that the acid breaker is not available to break the fluid during the injection. In one embodiment the viscosifier is a viscoelastic surfactant fluid system and the solid hydrolysable polyacid is of a size selected to be a fluid loss additive, for example in fracturing or gravel packing. In another embodiment, the solid hydrolysable polyacid is used in particles sufficiently small that they enter the pores of the formation. In either case, the viscosifier is broken after the solid releases more acid than can be neutralized by the pH control agent.
摘要翻译：给出了用增稠液体处理井眼渗透的地层的方法。流体包含固体可水解的多酸，其在溶解和水解时释放酸，该酸是用于增粘体系的断裂剂。合适的固体可水解的多元酸包括聚乳酸和聚乙醇酸。流体还含有pH控制剂，其量足以中和注射前固体可水解的多元酸中存在的任何酸，并且在注射期间中和由固体可水解的多元酸产生的任何酸，使得酸破乳剂不可用在注射期间打破流体。在一个实施方案中，增粘剂是粘弹性表面活性剂流体系统，并且固体可水解的多元酸的尺寸被选择为流体损失添加剂，例如在压裂或砾石包装中。在另一个实施方案中，固体可水解的多元酸以足够小的颗粒使用，使得它们进入地层的孔。在任一种情况下，在固体释放比可以被pH控制剂中和的酸更多之后，粘稠剂被破坏。

9. 发明授权

US07507693B2 Viscoelastic surfactant fluid systems comprising an aromatic sulfonate and methods of using same 有权
标题翻译：包含芳族磺酸盐的粘弹性表面活性剂流体体系及其使用方法
公开(公告)号：US07507693B2
公开(公告)日：2009-03-24
申请号：US11608085
申请日：2006-12-07
申请人： Yiyan Chen , Jesse C. Lee , Eric Hanson
发明人： Yiyan Chen , Jesse C. Lee , Eric Hanson
IPC分类号： C09K8/60 , C09K8/62 , E21B43/26
CPC分类号： C09K8/68 , C09K8/602 , C09K8/88 , C09K2208/30
摘要： Methods of improving shear recovery time of viscoelastic surfactant fluid systems are described, one method involving providing a viscoelastic surfactant fluid system comprising a major portion of a surfactant and a rheology enhancer in a concentration sufficient to shorten shear recovery time of the fluid system compared to shear recovery time of the fluid system absent the rheology enhancer, the rheology enhancer selected from aromatic sulfonates having a molecular weight of at least 500; and injecting the fluid system down a well. The rheology enhancer may be a lignosulfonate derived from wood pulping. Viscoelastic surfactant systems including the rheology enhancer are also described.
摘要翻译：描述了提高粘弹性表面活性剂流体体系的剪切恢复时间的方法，一种方法包括提供包含主要部分表面活性剂和流变增强剂的粘弹性表面活性剂流体体系，其浓度足以缩短与剪切相比的流体系统的剪切恢复时间不含流变增强剂的流体体系的回收时间，流变增强剂选自分子量至少为500的芳族磺酸盐; 并将流体系统向下注入井中。流变增强剂可以是衍生自木材制浆的木质素磺酸盐。还描述了包括流变增强剂的粘弹性表面活性剂体系。

10. 发明申请

US20080167205A1 Additive for viscoelastic fluid 有权
标题翻译：粘弹性液体添加剂
公开(公告)号：US20080167205A1
公开(公告)日：2008-07-10
申请号：US12015710
申请日：2008-01-17
申请人： Yiyan Chen , Jesse C. Lee
发明人： Yiyan Chen , Jesse C. Lee
IPC分类号： C09K8/68
CPC分类号： C09K8/68 , B01F17/0042 , B01F17/005 , B01J13/0073 , C09K8/74 , C09K2208/30
摘要： Composition and method for shortening the shear recovery time of cationic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of a co-gelling agent selected from triblock oligomeric compounds having hydrophilic (for example polyether) and hydrophobic (for example alkyl) portions. The co-gelling agent also increases fluid viscosity and very low co-gelling agent concentration is needed. Preferred surfactants are betaines and quaternary amines. The fluids are useful in oilfield treatments, for example fracturing and gravel packing.
摘要翻译：通过添加有效量的选自具有亲水性（例如聚醚）和疏水（例如烷基）的三嵌段低聚化合物的共胶凝剂，缩短阳离子，两性离子和两性粘弹性表面活性剂流体体系的剪切恢复时间的组合物和方法，部分。共胶凝剂还增加流体粘度，并且需要非常低的共胶凝剂浓度。优选的表面活性剂是甜菜碱和季胺。这些流体可用于油田处理，例如压裂和砾石填充。

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