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    Zero Shear Viscosifying Agent
    5.
    发明申请
    Zero Shear Viscosifying Agent 有权
    零剪切粘度剂

    公开(公告)号：US20120238663A1

    公开(公告)日：2012-09-20

    申请号：US13485054

    申请日：2012-05-31

    申请人： Benjamin J. Iverson ,  Ashok K. Santra ,  Priscilla T. Reyes

    发明人： Benjamin J. Iverson ,  Ashok K. Santra ,  Priscilla T. Reyes

    IPC分类号： C09K8/467

    CPC分类号： C09K8/12 ,  C04B28/02 ,  C09K8/22 ,  C09K8/467 ,  C09K8/487 ,  C04B22/0026 ,  C04B24/2652 ,  C04B24/282 ,  C04B2103/46 ,  C04B24/32

    摘要： A treatment fluid comprising an aqueous liquid and an associative polymer additive. The associative polymer additive increases the plastic viscosity (PV) of an aqueous liquid by more than at least 50% and wherein the associative polymer additive increases the yield point (YP) by no more than about 30% of the corresponding increase in the PV relative to an aqueous liquid without the associative polymer additive. Moreover, the viscosity of the aqueous liquid comprising the associative polymer additive is capable of maintaining a viscosity of greater than about 20 cP for at least 20 minutes at temperatures higher than about 275° F. In some cases the associative polymer additive may be a hydrophobic alkoxylated aminoplast.

    摘要翻译： 一种包含水性液体和缔合聚合物添加剂的处理流体。 缔合聚合物添加剂将水性液体的塑性粘度（PV）提高至多50％，并且其中缔合聚合物添加剂将屈服点（YP）增加不超过PV相对增加的约30％ 到没有缔合性聚合物添加剂的水性液体。 此外，包含缔合聚合物添加剂的含水液体的粘度能够在高于约275°F的温度下保持大于约20cP的粘度至少20分钟。在一些情况下，缔合聚合物添加剂可以是疏水性的 烷氧基化氨基塑料。

    Well system having galvanic time release plug
    7.
    发明授权
    Well system having galvanic time release plug 有权
    井系统具有电流时间释放塞

    公开(公告)号：US07699101B2

    公开(公告)日：2010-04-20

    申请号：US11635159

    申请日：2006-12-07

    申请人： Michael L. Fripp ,  Haoyue Zhang ,  Luke W. Holderman ,  Deborah Fripp ,  Ashok K. Santra ,  Anindya Ghosh

    发明人： Michael L. Fripp ,  Haoyue Zhang ,  Luke W. Holderman ,  Deborah Fripp ,  Ashok K. Santra ,  Anindya Ghosh

    IPC分类号： E21B43/08

    CPC分类号： E21B43/088 ,  E21B33/1208 ,  E21B33/134

    摘要： A well system having a galvanic time release plug. A well system includes a flow passage and a flow blocking device which selectively obstructs flow through the passage, the device including an electrode in a galvanic cell. A flow blocking device for use in conjunction with a subterranean well includes a portion which delays an electrochemical reaction in a galvanic cell. A method of controlling fluid flow in a well system includes the steps of: obstructing flow through a passage using a flow blocking device which includes an electrode of a galvanic cell; and increasing flow through the passage by operation of the galvanic cell.

    摘要翻译： 具有电流时间释放塞的井系统。 井系统包括流动通道和阻流装置，其选择性地阻碍通过通道的流动，该装置包括电流池中的电极。 用于与地下井一起使用的阻流装置包括延迟电流池中的电化学反应的部分。 一种控制井系统中的流体流动的方法包括以下步骤：通过使用包括原电池电极的阻流装置阻塞通过通道的流动; 并且通过操作电池增加通过通道的流动。

    Cement compositions comprising aromatic sulfonated polymers and methods of using the same
    9.
    发明授权
    Cement compositions comprising aromatic sulfonated polymers and methods of using the same 有权
    包含芳族磺化聚合物的水泥组合物及其使用方法

    公开(公告)号：US07438758B2

    公开(公告)日：2008-10-21

    申请号：US11780192

    申请日：2007-07-19

    申请人： Ashok K. Santra ,  B. Raghava Reddy ,  Russell M. Fitzgerald

    发明人： Ashok K. Santra ,  B. Raghava Reddy ,  Russell M. Fitzgerald

    IPC分类号： C04B24/20

    CPC分类号： C04B28/02 ,  C04B24/163 ,  C09K8/493

    摘要： A method of servicing a wellbore that penetrates a subterranean formation includes displacing a cement composition comprising an aromatic sulfonated polymer into the wellbore and allowing the cement composition to set. In an embodiment, a transition time of the cement composition is less than or equal to about 60 minutes, alternatively less than or equal to about 50 minutes, less than or equal to about 40 minutes, less than or equal to about 30 minutes, less than or equal to about 20 minutes, or less than or equal to about 10 minutes. Thus, the transition time may be short enough to inhibit a substantial amount of gas migration into the cement composition before it sets. In yet another embodiment, the cement composition exhibits a viscosity that increases from a value of 35 Bc (Bearden units) to about 100 Bc in about 10 minutes or less when the cement composition sets.

    摘要翻译： 维护渗透地下地层的井筒的方法包括将包含芳族磺化聚合物的水泥组合物置于井眼中并使水泥组合物凝固。 在一个实施方案中，水泥组合物的过渡时间小于或等于约60分钟，或者小于或等于约50分钟，小于或等于约40分钟，小于或等于约30分钟，更少 大于或等于约20分钟，或小于或等于约10分钟。 因此，过渡时间可能足够短以在其组合之前抑制大量气体迁移到水泥组合物中。 在另一个实施方案中，当水泥组合物组合时，水泥组合物表现出在大约10分钟或更短时间内从35Bc（Bearden单元）的值增加到约100Bc的粘度。