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31. 发明授权

US07378378B2 Rheology enhancers 有权
标题翻译：流变增强剂
公开(公告)号：US07378378B2
公开(公告)日：2008-05-27
申请号：US11279622
申请日：2006-04-13
申请人： Yiyan Chen , Jesse C. Lee , Fang Li , Manilal Dahanayake , Robert Tillotson , Allwyn Colaco
发明人： Yiyan Chen , Jesse C. Lee , Fang Li , Manilal Dahanayake , Robert Tillotson , Allwyn Colaco
IPC分类号： C09K8/584 , C09K8/588 , E21B21/00
CPC分类号： C09K8/68 , C09K8/74 , C09K2208/30 , Y10S507/922
摘要： A method for increasing the rate of shear rehealing of fluids made with cationic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of a rheology enhancer package containing, for example a polyethylene glycol-polypropylene glycol block copolymer and a polynaphthalene sulfonate. The rheology enhancer package allows viscoelastic surfactant fluids to be used at lower viscoelastic surfactant concentrations in certain applications, for example certain oilfield treatments, for example fracturing and gravel packing. Preferred surfactants are betaines and quaternary amines.
摘要翻译：通过添加有效量的含有例如聚乙二醇 - 聚丙二醇嵌段共聚物和聚萘磺酸盐的流变增强剂包，提高用阳离子，两性离子和两性粘弹性表面活性剂流体体系制备的流体的剪切再吸收速率的方法。流变增强剂包装允许粘弹性表面活性剂流体在某些应用中以较低的粘弹性表面活性剂浓度使用，例如某些油田处理，例如压裂和砾石填充。优选的表面活性剂是甜菜碱和季胺。

32. 发明授权

US07320952B2 Additive for viscoelastic fluid 有权
公开(公告)号：US07320952B2
公开(公告)日：2008-01-22
申请号：US11033651
申请日：2005-01-12
申请人： Yiyan Chen , Jesse C. Lee
发明人： Yiyan Chen , Jesse C. Lee
IPC分类号： C09K8/588
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.

33. 发明授权

US08093187B2 Additive for viscoelastic fluid 有权
标题翻译：粘弹性液体添加剂
公开(公告)号：US08093187B2
公开(公告)日：2012-01-10
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： C09K8/588
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。

34. 发明授权

US07749944B2 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：US07749944B2
公开(公告)日：2010-07-06
申请号：US12368749
申请日：2009-02-10
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。

35. 发明授权

US07387987B2 Rheology modifiers 有权
标题翻译：流变改性剂
公开(公告)号：US07387987B2
公开(公告)日：2008-06-17
申请号：US11279612
申请日：2006-04-13
申请人： Yiyan Chen , Jesse C. Lee , Mathew Samuel
发明人： Yiyan Chen , Jesse C. Lee , Mathew Samuel
IPC分类号： C09K8/584 , C09K8/588 , E21B21/00
CPC分类号： C09K8/68 , C09K2208/30
摘要： A method for increasing the rate of shear rehealing of fluids made with cationic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of a polymeric rheology enhancer selected from polypropylene glycols and block copolymers of polypropylene glycol and polyethylene glycol. For applications in which rapid shear rehealing is required, the rheology enhancer allows fluids to be made and used at lower viscoelastic surfactant concentrations. Preferred surfactants are betaines and quaternary amines. The fluids are useful in oilfield treatments, for example fracturing and gravel packing.
摘要翻译：通过加入有效量的选自聚丙二醇和聚丙二醇和聚乙二醇的嵌段共聚物的聚合物流变增强剂，提高用阳离子，两性离子和两性粘弹性表面活性剂流体体系制备的流体的剪切再吸收速率的方法。对于需要快速剪切回流的应用，流变增强剂允许在较低的粘弹性表面活性剂浓度下制备和使用流体。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。

36. 发明申请

US20080139410A1 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：US20080139410A1
公开(公告)日：2008-06-12
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
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。

37. 发明授权

US09102855B2 Removal of crystallinity in guar based materials and related methods of hydration and subterranean applications 有权
标题翻译：在瓜尔胶基材料中去除结晶度和相关的水合和地下应用方法
公开(公告)号：US09102855B2
公开(公告)日：2015-08-11
申请号：US12637795
申请日：2009-12-15
申请人： Yiyan Chen
发明人： Yiyan Chen
IPC分类号： C09K8/62 , C09K8/00 , C08B37/00 , C08L5/00 , C08L71/02 , C09K8/68
CPC分类号： C09K8/00 , C08B37/0096 , C08L5/00 , C08L71/02 , C09K8/685
摘要： Methods which include hydrating a crystalline polymeric material in a first liquid medium, precipitating the polymeric material to form an amorphous polymeric material, and combining amorphous polymeric material with a second liquid medium to form a treatment fluid. Alternative methods include hydrating a crystalline polymeric material in a first liquid medium, precipitating the polymeric material to form a lower crystalline form of the polymeric material, and combining the lower crystalline form of polymeric material with a second liquid medium to form a treatment fluid.
摘要翻译：方法包括在第一液体介质中水合结晶聚合物材料，沉淀聚合材料以形成无定形聚合物材料，以及将无定形聚合材料与第二液体介质结合以形成处理流体。替代方法包括在第一液体介质中水合结晶聚合物材料，沉淀聚合物材料以形成聚合物材料的较低结晶形式，并将聚合物材料的低结晶形式与第二液体介质结合以形成处理流体。

38. 发明申请

US20140131040A9 PROPPANT PILLAR PLACEMENT IN A FRACTURE WITH HIGH SOLID CONTENT FLUID 有权
标题翻译：具有高固体含量流体的裂缝中的特殊支柱
公开(公告)号：US20140131040A9
公开(公告)日：2014-05-15
申请号：US13073458
申请日：2011-03-28
申请人： Mohan K.R. Panga , Yiyan Chen , Moin Muhammad
发明人： Mohan K.R. Panga , Yiyan Chen , Moin Muhammad
IPC分类号： E21B43/267
CPC分类号： E21B43/267 , C09K8/70 , C09K8/80 , C09K2208/08 , E21B43/164
摘要： A method of placing proppant into a fracture formed in a subterranean formation from a wellbore is disclosed. The method comprises injecting through the wellbore a first treatment fluid to initiate the fracture in the subterranean formation; injecting through the wellbore a second treatment fluid comprising a particulate blend slurry made of proppant; the particulate blend comprising at least a first amount of particulates having a first average particle size between about 100 and 5000 μm and at least a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size; and forming with the particulate blend slurry a plurality of proppant-rich clusters spaced apart by proppant-free regions forming open channels.
摘要翻译：公开了一种将支撑剂置于从井眼形成在地层中的裂缝中的方法。该方法包括通过井眼喷射第一处理流体以引发地层中的断裂; 通过井筒注入包含由支撑剂制成的颗粒状混合浆料的第二处理流体; 所述颗粒混合物包含至少第一量的具有约100至5000μm的第一平均粒度的颗粒和至少第二量的第二平均粒度小于第一平均粒度的约2-3倍的颗粒 ; 以及与所述颗粒状混合浆料一起形成多个富支撑剂富集簇，其通过形成开放通道的无支撑剂区域间隔开。

39. 发明申请

US20120149606A1 System, Method And Apparatus For Enhancing Wellbore Treatment Fluid Flexibility 失效
标题翻译：用于提高井筒处理流体灵活性的系统，方法和装置
公开(公告)号：US20120149606A1
公开(公告)日：2012-06-14
申请号：US13398120
申请日：2012-02-16
申请人： Carlos Abad , Hemant K. Ladva , Lijun Lin , Yiyan Chen
发明人： Carlos Abad , Hemant K. Ladva , Lijun Lin , Yiyan Chen
IPC分类号： C09K8/00
CPC分类号： E21B43/24 , C09K8/03 , E21B21/06 , Y10S507/904 , Y10T137/85978
摘要： A method includes performing a chemical process to create a chemical product and an amount of heat, and transferring the heat to a first fluid. The method further includes hydrating a polymer in the first fluid, and adding the chemical product from the chemical process to the first fluid to create a treatment fluid. The method further includes diluting the treatment fluid with respect to at least one constituent of the treatment fluid. The method includes treating a formation of interest in a wellbore with the treatment fluid. The method includes changing a formulation of the treatment fluid during the treating. The method also includes extending the treating beyond a design amount, or ending the treatment before the design amount and preserving some reagents of the chemical process.
摘要翻译：一种方法包括执行化学过程以产生化学产品和一定量的热量，并将热量传递给第一流体。该方法还包括将第一流体中的聚合物水合，并将化学产物从化学过程加入到第一流体中以产生处理流体。该方法还包括相对于处理流体的至少一种成分稀释处理流体。该方法包括用处理流体处理在井眼中的感兴趣的形成。该方法包括在处理期间改变处理液的配方。该方法还包括将处理延伸超过设计量，或在设计量之前结束处理并保留化学过程的一些试剂。

40. 发明申请

US20120073809A1 DIVERSION PILL AND METHODS OF USING THE SAME 审中-公开
标题翻译： DIVERSION PILL及其使用方法
公开(公告)号：US20120073809A1
公开(公告)日：2012-03-29
申请号：US12891889
申请日：2010-09-28
申请人： Eric Clum , Yiyan Chen
发明人： Eric Clum , Yiyan Chen
IPC分类号： E21B43/22 , E21B43/16
CPC分类号： E21B43/16 , C09K8/602 , C09K8/68 , C09K8/882 , C09K8/887 , C09K8/90 , C09K2208/08 , C09K2208/30
摘要： The invention provides a method made of steps of method injecting into a wellbore, a composition comprising an aqueous solution, a viscosifying agent, a degradable material, and sized salt particulates; and allowing viscosity of the composition to increase and form a plug at dynamic reservoir conditions.
摘要翻译：本发明提供了一种方法，该方法是将井眼注入方法，包含水溶液，增粘剂，可降解材料和大小的盐颗粒的组合物; 并且允许组合物的粘度在动态储存器条件下增加并形成塞子。

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