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1. 发明申请

US20130112417A1 Compositions and Methods for Protecting Metal Surfaces from Corrosion 审中-公开
公开(公告)号：US20130112417A1
公开(公告)日：2013-05-09
申请号：US13701797
申请日：2011-05-09
申请人： Ramesh Varadaraj , Sabine C. Zeilinger , Catalin Dragos Ivan
发明人： Ramesh Varadaraj , Sabine C. Zeilinger , Catalin Dragos Ivan
IPC分类号： C09K8/54 , E21B41/02
CPC分类号： C09K8/54 , E21B41/02
摘要： Guard bed compositions for protecting metal surfaces in a wellbore from corrosion may comprise a variety of constituent components. Exemplary guard bed compositions may include: one or more surfactants selected from the group comprising amine surfactants; one or more co-surfactants selected from the group comprising C3 to C15 alcohols; and one or more non-surfactant amines. Other exemplary guard bed compositions may comprise: a hydrocarbon fluid and an overbased detergent. Still other exemplary guard bed compositions may comprise: a hydrocarbon fluid; one or more surfactants; one or more co-surfactants; and one or more non-surfactant amines. The one or more surfactants may be selected from the group comprising alkyl alkoxylated surfactants. Still further, exemplary guard bed compositions may comprise: a hydrocarbon fluid and one or more associating surface active polymers selected from the group comprising amphiphilic polymers.

2. 发明申请

US20130112418A1 Composition and Methods for Protecting Metal Surfaces from Corrosion 审中-公开
标题翻译：保护金属表面免受腐蚀的成分和方法
公开(公告)号：US20130112418A1
公开(公告)日：2013-05-09
申请号：US13701799
申请日：2011-05-09
申请人： Ramesh Varadaraj , Sabine C. Zeilinger , Catalin Dragos Ivan
发明人： Ramesh Varadaraj , Sabine C. Zeilinger , Catalin Dragos Ivan
IPC分类号： C09K8/54 , E21B41/02
CPC分类号： C09K8/54 , E21B41/02
摘要： Guard bed compositions for protecting metal surfaces in a wellbore from corrosion may comprise a variety of constituent components. Exemplary guard bed compositions may include: one or more surfactants selected from the group comprising amine surfactants; one or more co-surfactants selected from the group comprising C3 to C15 alcohols; and one or more non-surfactant amines. Other exemplary guard bed compositions may comprise: a hydrocarbon fluid and an overbased detergent. Still other exemplary guard bed compositions may comprise: a hydrocarbon fluid; one or more surfactants; one or more co-surfactants; and one or more non-surfactant amines. The one or more surfactants may be selected from the group comprising alkyl alkoxylated surfactants. Still further, exemplary guard bed compositions may comprise: a hydrocarbon fluid and one or more associating surface active polymers selected from the group comprising amphiphilic polymers.
摘要翻译：用于保护井眼中的金属表面免受腐蚀的保护床组合物可以包含各种组成成分。示例性的保护床组合物可以包括：一种或多种选自包括胺表面活性剂的表面活性剂; 选自包含C 3至C 15醇的一种或多种辅助表面活性剂; 和一种或多种非表面活性剂胺。其它示例性的保护床组合物可以包括：烃流体和高碱性洗涤剂。其它示例性的保护床组合物可以包括：烃流体; 一种或多种表面活性剂; 一种或多种辅助表面活性剂; 和一种或多种非表面活性剂胺。一种或多种表面活性剂可以选自烷基烷氧基化表面活性剂。另外，示例性保护床组合物可以包括：烃流体和一种或多种选自包括两亲性聚合物的缔合表面活性聚合物。

3. 发明申请

US20130112416A1 Compositions and Methods for Protecting Metal Surfaces from Corrosion 审中-公开
公开(公告)号：US20130112416A1
公开(公告)日：2013-05-09
申请号：US13701790
申请日：2011-05-09
申请人： Ramesh Varadaraj , Sabine C. Zeilinger , Catalin Dragos Ivan
发明人： Ramesh Varadaraj , Sabine C. Zeilinger , Catalin Dragos Ivan
IPC分类号： C09K8/54 , E21B41/02
CPC分类号： C09K8/54 , E21B41/02
摘要： Guard bed compositions for protecting metal surfaces in a wellbore from corrosion may comprise a variety of constituent components. Exemplary guard bed compositions may include: one or more surfactants selected from the group comprising amine surfactants; one or more co-surfactants selected from the group comprising C3 to C15 alcohols; and one or more non-surfactant amines. Other exemplary guard bed compositions may comprise: a hydrocarbon fluid and an overbased detergent. Still other exemplary guard bed compositions may comprise: a hydrocarbon fluid; one or more surfactants; one or more co-surfactants; and one or more non-surfactant amines. The one or more surfactants may be selected from the group comprising alkyl alkoxylated surfactants. Still further, exemplary guard bed compositions may comprise: a hydrocarbon fluid and one or more associating surface active polymers selected from the group comprising amphiphilic polymers.

4. 发明申请

US20130112415A1 Compositions and Methods for Protecting Metal Surfaces from Corrosion 审中-公开
标题翻译：防止金属表面腐蚀的组成和方法
公开(公告)号：US20130112415A1
公开(公告)日：2013-05-09
申请号：US13701789
申请日：2011-05-09
申请人： Ramesh Varadaraj , Sabine C. Zeilinger , Catalin Dragos Ivan
发明人： Ramesh Varadaraj , Sabine C. Zeilinger , Catalin Dragos Ivan
IPC分类号： C09K8/54 , E21B41/02
CPC分类号： C09K8/54 , E21B41/02
摘要： Guard bed compositions for protecting metal surfaces in a wellbore from corrosion may comprise a variety of constituent components. Exemplary guard bed compositions may include: one or more surfactants selected from the group comprising amine surfactants; one or more co-surfactants selected from the group comprising C3 to C15 alcohols; and one or more non-surfactant amines. Other exemplary guard bed compositions may comprise: a hydrocarbon fluid and an overbased detergent. Still other exemplary guard bed compositions may comprise: a hydrocarbon fluid; one or more surfactants; one or more co-surfactants; and one or more non-surfactant amines. The one or more surfactants may be selected from the group comprising alkyl alkoxylated surfactants. Still further, exemplary guard bed compositions may comprise: a hydrocarbon fluid and one or more associating surface active polymers selected from the group comprising amphiphilic polymers.
摘要翻译：用于保护井眼中的金属表面免受腐蚀的保护床组合物可以包含各种组成成分。示例性的保护床组合物可以包括：一种或多种选自包括胺表面活性剂的表面活性剂; 选自包含C 3至C 15醇的一种或多种辅助表面活性剂; 和一种或多种非表面活性剂胺。其它示例性的保护床组合物可以包括：烃流体和高碱性洗涤剂。其它示例性的保护床组合物可以包括：烃流体; 一种或多种表面活性剂; 一种或多种辅助表面活性剂; 和一种或多种非表面活性剂胺。一种或多种表面活性剂可以选自烷基烷氧基化表面活性剂。另外，示例性保护床组合物可以包括：烃流体和一种或多种选自包括两亲性聚合物的缔合表面活性聚合物。

5. 发明申请

US20120160497A1 Hydrocarbon Recovery Operations Fluids and Methods For Using the Same 审中-公开
标题翻译：烃回收操作流体及其使用方法
公开(公告)号：US20120160497A1
公开(公告)日：2012-06-28
申请号：US13394301
申请日：2010-08-10
申请人： Ramesh Varadaraj , Sabine C. Zeilinger , Fred E. Dupriest
发明人： Ramesh Varadaraj , Sabine C. Zeilinger , Fred E. Dupriest
IPC分类号： E21B43/16 , E21B43/00 , E21B7/00 , C09K8/06 , C09K8/60
CPC分类号： C09K8/035 , E21B43/025 , E21B43/26
摘要： Fluids for use in hydrocarbon recovery operations include water and at least one organo-anionic surfactant. The fluids may be used in methods for conducting hydrocarbon recovery operations, such as drilling operations, completion operations, production operations, injection operations. The fluid may be adapted to remediate a NAF filter cake. Exemplary organo-anionic surfactants may include one or more of monoethanol ammonium alkyl aromatic sulfonic acid, monoethanol ammonium alkyl carboxylic acid, and mixtures thereof.
摘要翻译：用于烃回收操作的流体包括水和至少一种有机阴离子表面活性剂。流体可以用于进行烃回收操作的方法，例如钻井操作，完井操作，生产操作，喷射操作。流体可以适于修复NAF滤饼。示例性的有机 - 阴离子表面活性剂可以包括烷基芳族磺酸单乙醇铵，烷基羧酸单乙醇铵及其混合物中的一种或多种。

6. 发明申请

US20120193095A1 Hydrocarbon Recovery Operations Fluids and Methods For Using the Same 审中-公开
标题翻译：烃回收操作流体及其使用方法
公开(公告)号：US20120193095A1
公开(公告)日：2012-08-02
申请号：US13394317
申请日：2010-08-10
申请人： Ramesh Varadaraj , Sabine C. Zeilinger , Fred Dupriest
发明人： Ramesh Varadaraj , Sabine C. Zeilinger , Fred Dupriest
IPC分类号： E21B43/00 , C09K8/60 , C09K8/32
CPC分类号： C09K8/32 , C09K8/52
摘要： Fluids for use in hydrocarbon recovery operations include a non-aqueous fluid and at least one organo-anionic surfactant. The fluids may be used in methods for conducting hydrocarbon recovery operations, such as drilling operations, completion operations, production operations, injection operations. The fluid may be adapted to remediate a NAF filter cake. Exemplary organo-anionic surfactants may include one or more of monoethanol ammonium alkyl aromatic sulfonic acid, monoethanol ammonium alkyl carboxylic acid, and mixtures thereof.
摘要翻译：用于烃回收操作的流体包括非水流体和至少一种有机阴离子表面活性剂。流体可以用于进行烃回收操作的方法，例如钻井操作，完井操作，生产操作，喷射操作。流体可以适于修复NAF滤饼。示例性的有机 - 阴离子表面活性剂可以包括烷基芳族磺酸单乙醇铵，烷基羧酸单乙醇铵及其混合物中的一种或多种。

7. 发明申请

US20150322762A1 Drill Cuttings Re-Injection 审中-公开
标题翻译：钻头重新注射
公开(公告)号：US20150322762A1
公开(公告)日：2015-11-12
申请号：US14272141
申请日：2014-05-07
申请人： Ramesh Varadaraj
发明人： Ramesh Varadaraj
IPC分类号： E21B43/267
CPC分类号： E21B21/066 , C09K8/80 , C09K8/88 , C09K8/90 , C09K8/92 , E21B41/0057 , E21B43/267
摘要： Methods and compositions for re-injecting formation solids such as drillbit cuttings into a subsurface formation including: obtaining a volume of solid particles comprising a non-aqueous fluid; obtaining a slurry-forming fluid, the slurry-forming fluid comprising water, salt, a viscosifying water soluble polymer, and an oily solids aggregator; mixing the obtained solid particles and the slurry-forming fluid to create an injectable slurry; and introducing the injectable slurry into a wellbore for injection into a subsurface formation.
摘要翻译：将地层固体例如钻屑切割重新注入地下地层的方法和组合物，包括：获得一定体积的包含非水性流体的固体颗粒; 获得浆料形成流体，所述浆料形成流体包含水，盐，增稠水溶性聚合物和油性固体聚集体; 将获得的固体颗粒和淤浆形成流体混合以产生可注射浆料; 并将可注射浆料引入用于注入地下地层的井孔中。

8. 发明授权

US08980618B2 Algae aggregation and harvesting 有权
标题翻译：藻类聚集和收获
公开(公告)号：US08980618B2
公开(公告)日：2015-03-17
申请号：US14055123
申请日：2013-10-16
申请人： Ramesh Varadaraj
发明人： Ramesh Varadaraj
IPC分类号： C12N1/12
CPC分类号： C12N1/12
摘要： Methods are provided for separating algae from an aqueous environment. An aqueous feed containing algae can be aged for a period of at least about 90 hours without purging or other aeration. The aging of the aqueous feed can result in formation of aggregated algae, which can then be filtered under pressure. Due to the larger size of the algae aggregates, the pressurized filtration can reduce/minimize the tendency to clog the filter, as the algae aggregates can generally be too large to fit within the pores of the filter. The filter can preferably be located at the bottom of the vessel holding the aqueous feed. This can assist in allowing the algae to remain in a cake above the filter, as opposed to having the algae dissolve back into the aqueous feed.
摘要翻译：提供了从水性环境中分离藻类的方法。包含藻类的含水饲料可以老化至少约90小时，而不需要吹扫或其他通气。水性饲料的老化可导致聚集的藻类的形成，然后可以在压力下过滤。由于藻类聚集体的尺寸较大，加压过滤可以减少/最小化堵塞过滤器的趋势，因为藻类聚集体通常可能太大而不适合于过滤器的孔内。过滤器可以优选地位于容纳含水进料的容器的底部。这可以帮助允许藻类保留在过滤器上方的蛋糕中，而不是使藻类溶解回到水性饲料中。

9. 发明申请

US20150065399A1 Methods and Compositions for Enhanced Acid Stimulation of Carbonate and Sand Stone Formations 审中-公开
标题翻译：碳酸盐和砂石地层增强酸刺激的方法和组成
公开(公告)号：US20150065399A1
公开(公告)日：2015-03-05
申请号：US14330974
申请日：2014-07-14
申请人： Ramesh Varadaraj , Cooper E. Haith , Barbara Carstensen , Cornelius H. Brons
发明人： Ramesh Varadaraj , Cooper E. Haith , Barbara Carstensen , Cornelius H. Brons
IPC分类号： C09K8/52 , C09K8/32 , E21B43/25 , E21B7/00 , E21B43/16 , E21B43/26
CPC分类号： E21B43/26 , C09K8/04 , C09K8/584 , C09K8/602 , C09K8/74
摘要： An operations fluid is provided for treatment operations on wellbores associated with hydrocarbon production, the operations fluid comprising: water, an inorganic primary acid; and an alkyl acid surfactant. The alkyl acid surfactant has the general formula {R—X}, wherein R comprises at least one of linear and branched alkyl and alkyl aryl hydrocarbon chains and X comprises an acid, and X may comprise an acid selected from the group comprising sulfonic acids, carboxylic acids, phosphoric acids, and mixtures thereof. The alkyl acid may include an acid selected from the group consisting of alkyl or alkyl aryl acids. The operations fluid may be useful in treatment operations related to formation stimulation or mitigation of non-aqueous filter cakes (NAF) and/or formation invasion by NAF drilling fluids.
摘要翻译：提供操作流体用于与烃生产相关的井筒上的处理操作，操作流体包括：水，无机一级酸; 和烷基酸表面活性剂。烷基酸表面活性剂具有通式{R-X}，其中R包括直链和支链烷基和烷基芳基烃链中的至少一个，X包含酸，X可以包含选自以下的酸：磺酸，羧酸，磷酸及其混合物。烷基酸可以包括选自烷基或烷基芳基酸的酸。操作流体可用于与NAF钻井液的非水性滤饼（NAF）的形成刺激或缓解和/或地层入侵相关的处理操作。

10. 发明申请

US20130143778A1 UPGRADING DEASPHALTING RESIDUE TO HIGH PERFORMANCE ASPHALT 有权
标题翻译：升级去除残留物到高性能沥青
公开(公告)号：US20130143778A1
公开(公告)日：2013-06-06
申请号：US13309940
申请日：2011-12-02
申请人： Ramesh Varadaraj , Lyle E. Moran , John Brownie , Mary J. Gale
发明人： Ramesh Varadaraj , Lyle E. Moran , John Brownie , Mary J. Gale
IPC分类号： C10M169/04 , C10C3/00 , C10L3/10
CPC分类号： C08K5/42 , C08L91/00 , C08L95/00 , C10G21/003
摘要： A novel composition is provided that incorporates the residual solids from solvent deasphalting to make a high value asphalt product. A process for making the asphalt composition is also provided. A first portion of heavy oil or another feedstock can be deasphalted using propane deasphalting or another suitable deasphalting process. This generates a solvated fraction and an insoluble deasphalting residue. The deasphalting residue is then added to a second portion of heavy oil, such as a second portion of the same type of heavy oil that was used as feedstock in the solvent deasphalting. The mixture of deasphalting residue and heavy oil results in a novel dispersion that is suitable for use as an asphalt. Optionally, an additive such as an alkyl substituted aromatic sulfonic acid can be added to the composition to further improve the asphalt properties.
摘要翻译：提供了一种新的组合物，其包含来自溶剂脱沥青的残留固体以制备高价值沥青产品。还提供了制备沥青组合物的方法。重油或其他原料的第一部分可以使用丙烷脱沥青或其它合适的脱沥青方法脱沥青。这产生溶剂化馏分和不溶性脱沥青残渣。然后将脱沥青残渣加入重油的第二部分，例如在溶剂脱沥青中用作原料的相同类型重油的第二部分。脱沥青残渣和重油的混合物产生适合用作沥青的新型分散体。任选地，可将添加剂如烷基取代的芳族磺酸加入到组合物中以进一步改善沥青性能。

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