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153 条记录 (耗时 0.02 秒)

    Upgrading asphaltene containing oils
    1.
    发明申请
    Upgrading asphaltene containing oils 失效
    升级含沥青质的油

    公开(公告)号：US20060000749A1

    公开(公告)日：2006-01-05

    申请号：US11157554

    申请日：2005-06-21

    申请人： Ramesh Varadaraj ,  Cornelius Brons

    发明人： Ramesh Varadaraj ,  Cornelius Brons

    IPC分类号： C10G31/00

    CPC分类号： C10L1/1616 ,  C10G29/20 ,  C10G31/00

    摘要： A method for reducing the viscosity and surface wetting tendency of an oil containing hydrophilic asphaltenes comprises adding to said oil an amount of hydrophobic asphaltenes in the range of 1 to 80 wt % based on the weight of the hydrophilic asphaltenes of said oil.

    摘要翻译： 一种降低含有亲水性沥青质的油的粘度和表面润湿趋势的方法包括向所述油中加入一定量的疏水性沥青质，其量为所述油的亲水性沥青质重量的1〜80重量％。

    Polar solvent-asphaltene dispersant method for upgrading heavy oils
    3.
    发明申请
    Polar solvent-asphaltene dispersant method for upgrading heavy oils 失效
    极性溶剂 - 沥青质分散剂改质重油的方法

    公开(公告)号：US20060014654A1

    公开(公告)日：2006-01-19

    申请号：US11173978

    申请日：2005-07-01

    申请人： Ramesh Varadaraj ,  Cornelius Brons

    发明人： Ramesh Varadaraj ,  Cornelius Brons

    IPC分类号： C10M135/10

    CPC分类号： C10G21/003

    摘要： A method for reducing the viscosity and toluene equivalence of an oil containing asphaltenes comprises the steps of: a) mixing with the oil, a polar solvent, and an asphaltene dispersant additive wherein the weight ratio of oil : polar solvent is in the range of 10:0.1 to 10:5, the asphaltene dispersant additive is at a treat rate in the range of 0.025 to 5 weight percent based on the weight of the oil, and then, b) removing at least 90 wt % of the polar solvent from the mixture of oil, polar solvent and the asphaltene dispersant additive to provide upgraded oil with reduced viscosity and toluene equivalence.

    摘要翻译： 降低含油沥青质的粘度和甲苯当量的方法包括以下步骤：a）与油，极性溶剂和沥青质分散剂添加剂混合，其中油：极性溶剂的重量比在10 ：0.1〜10：5，沥青质分散剂添加剂的处理速度为0.025〜5重量％，基于油的重量，然后，b）从至少90重量％的极性溶剂中除去 油，极性溶剂和沥青质分散剂添加剂的混合物，以提供具有降低的粘度和甲苯当量的改进的油。

    Demulsification of Water-In-Oil Emulsion
    5.
    发明申请
    Demulsification of Water-In-Oil Emulsion 有权
    油包水乳液的破乳

    公开(公告)号：US20090166028A1

    公开(公告)日：2009-07-02

    申请号：US12305639

    申请日：2007-06-14

    申请人： Ramesh Varadaraj ,  Cornelius Brons

    发明人： Ramesh Varadaraj ,  Cornelius Brons

    IPC分类号： E21B43/00 ,  B01D17/05

    CPC分类号： C10G33/04 ,  C10G2300/1033 ,  C10G2300/203 ,  C10G2300/206 ,  C10G2300/44 ,  C10G2300/80

    摘要： A method of demulsifying a water-in-oil emulsion is provided. The method includes treating a volume of fluids comprising oil and water by adding a salt of a polynuclear, aromatic sulfonic acid to the fluids so as to cause the oil and water to be at least partially demulsified. The method may further include separating water and oil in a separator. A method of producing hydrocarbons from a subsurface reservoir is also provided. The hydrocarbons include a water-in-oil emulsion. The method includes producing the hydrocarbons through a wellbore, and subjecting the water-in-oil emulsion to a salt of a polynuclear, aromatic sulfonic acid additive so as to cause the oil and water to be at least partially demulsified.

    摘要翻译： 提供了一种使油包水乳液破乳的方法。 该方法包括通过向流体中加入多核芳香磺酸的盐来处理包括油和水的体积的体积，以使油和水至少部分地破乳。 该方法还可以包括在分离器中分离水和油。 还提供了一种从地下储层生产烃的方法。 烃包括油包水乳液。 该方法包括通过井孔生产烃，并将油包水乳液经多芳香磺酸添加剂的盐进行处理，以使油和水至少部分地破乳。

    Drill Cuttings Re-Injection
    7.
    发明申请
    Drill Cuttings Re-Injection 审中-公开
    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。

    Algae aggregation and harvesting
    8.
    发明授权
    Algae aggregation and harvesting 有权
    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。

    Methods and Compositions for Enhanced Acid Stimulation of Carbonate and Sand Stone Formations
    9.
    发明申请
    Methods and Compositions for Enhanced Acid Stimulation of Carbonate and Sand Stone Formations 审中-公开
    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。

    UPGRADING DEASPHALTING RESIDUE TO HIGH PERFORMANCE ASPHALT
    10.
    发明申请
    UPGRADING DEASPHALTING RESIDUE TO HIGH PERFORMANCE ASPHALT 有权
    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。