利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

153 条记录 (耗时 0.031 秒)

    Method for determining viscosity of water-in-oil emulsions
    32.
    发明授权
    Method for determining viscosity of water-in-oil emulsions 有权
    确定油包水乳液粘度的方法

    公开(公告)号：US07117722B2

    公开(公告)日：2006-10-10

    申请号：US10962688

    申请日：2004-10-12

    申请人： Ramesh Varadaraj

    发明人： Ramesh Varadaraj

    IPC分类号： G01N11/00 ,  G01N33/26 ,  C10G17/00

    CPC分类号： C10L1/328 ,  G01N11/00

    摘要： Method to determine the viscosity of a water-in-oil emulsion that will be formed by an oil comprising organic acids when mixed with water comprising:determining the value of the expression: η ( emul ) = K ⁢ ⁢ η ( oil ) ⁢ TAN - r ( 1 - ϕ ) 2.5 wherein η(oil) is the viscosity the oil, TAN is the total acid number of the oil, φ is a number in the range of 0.1 to 0.8, r is a number in the range of about 0.5 to 2, and K is a number from about 1 to 20, said determined value, η(emul) being the viscosity of the water-in-oil emulsion. The method is used to prepare water-in-oil emulsions of predetermined viscosity and to improve desalting of oils.

    摘要翻译： 确定由含有机酸的油与水混合时形成的油包水乳液的粘度的方法，包括：确定表达式的值： eta （ emul MO> = K eta > > （ 1 2.5 。 该方法用于制备预定粘度的油包水乳液并改善油的脱盐。

      Upgrading asphaltene containing oils
      34.
      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％。

      Mineral acid enhanced thermal treatment for viscosity reduction of oils (ECB-0002)
      36.
      发明授权
      Mineral acid enhanced thermal treatment for viscosity reduction of oils (ECB-0002) 有权

      公开(公告)号：US06800193B2

      公开(公告)日：2004-10-05

      申请号：US09819269

      申请日：2001-03-28

      申请人： Ramesh Varadaraj

      发明人： Ramesh Varadaraj

      IPC分类号： C10G1500

      CPC分类号： E21B43/24 ,  C09K8/58 ,  C09K8/592

      摘要： The invention describes a method for decreasing the viscosity of crude oils and residuum utilizing a combination of thermal and acidic treatment. Further, the invention describes a method for making a water-in-oil emulsion, or a solids-stabilized water-in-oil emulsion with a reduced viscosity. The emulsion can be used in enhanced oil recovery methods, including using the emulsion as a drive fluid to displace hydrocarbons in a subterranean formation, and using the emulsion as a barrier fluid for diverting flow of fluids in the formation.

      Heavy oil - solid composition and method for preparing the same
      39.
      发明授权
      Heavy oil - solid composition and method for preparing the same 有权
      重油 - 固体组合物及其制备方法

      公开(公告)号：US06524468B2

      公开(公告)日：2003-02-25

      申请号：US09819361

      申请日：2001-03-28

      申请人： Ramesh Varadaraj ,  James Chi Sung

      发明人： Ramesh Varadaraj ,  James Chi Sung

      IPC分类号： C01G2700

      CPC分类号： C08L95/00 ,  C08L2666/68 ,  C08L2666/72

      摘要： The invention includes a compositon of matter comprising a heavy oil having dispersed therein surface modified solid wherein said surface modified solids comprise solids having adsorbed thereon air oxidized polar hydrocarbons from said heavy oil and wherein said surface modified solids have a diameter of about 10 microns or less and a method for preparing the same.

      摘要翻译： 本发明包括物质组合物，其包含分散有表面改性固体的重油，其中所述表面改性固体包含其上吸附有来自所述重油的空气氧化极性烃的固体，并且其中所述表面改性固体具有约10微米或更小的直径 及其制备方法。