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    Degradable casing seal construction for downhole applications
    22.
    发明授权
    Degradable casing seal construction for downhole applications 有权

    公开(公告)号：US09777550B2

    公开(公告)日：2017-10-03

    申请号：US14552003

    申请日：2014-11-24

    Applicant: James Doane ,  Wayne Furlan ,  Ping Duan ,  Sayantan Roy ,  Anil Sadana

    Inventor： James Doane ,  Wayne Furlan ,  Ping Duan ,  Sayantan Roy ,  Anil Sadana

    IPC: E21B33/12

    CPC classification number: E21B33/1208

    Abstract: In one aspect, a degradable apparatus is disclosed, including: an inner core with a first degradation rate in a downhole environment; an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment. In another aspect, a method of temporarily sealing a downhole zone is disclosed, including: providing an inner core with a first degradation rate in a downhole environment; providing an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment; sealing the downhole zone with the outer sheath; exposing the outer sheath to the downhole environment; and exposing the inner core to the downhole environment.

    DEGRADABLE MATERIAL FOR DOWNHOLE APPLICATIONS
    23.
    发明申请
    DEGRADABLE MATERIAL FOR DOWNHOLE APPLICATIONS 审中-公开
    可降解材料用于井下应用

    公开(公告)号：US20160145485A1

    公开(公告)日：2016-05-26

    申请号：US14551976

    申请日：2014-11-24

    Applicant: James Doane ,  Wayne Furlan ,  Ping Duan ,  Sayantan Roy ,  Anil Sadana

    Inventor： James Doane ,  Wayne Furlan ,  Ping Duan ,  Sayantan Roy ,  Anil Sadana

    IPC: C09K8/508 ,  E21B33/12

    CPC classification number: C09K8/5086 ,  C09K8/524 ,  E21B33/1208 ,  E21B33/134 ,  E21B43/26

    Abstract: In one aspect, degradable material is disclosed, including: a polyurethane component with a first degradation rate in a downhole environment; and a corrosive additive component with a second degradation rate that is higher than a first degradation rate in the downhole environment. In another aspect, a method of temporarily sealing a downhole zone is disclosed, including: providing a polyurethane component with a first degradation rate in a downhole environment; providing a corrosive additive component with a second degradation rate that is higher than a first degradation rate in the downhole environment; mixing the polyurethane component and the corrosive additive component to form a degradable material; sealing the downhole zone with the degradable material; exposing the degradable material to the downhole environment; and degrading the degradable material.

    Abstract translation: 一方面，公开了可降解材料，包括：在井下环境中具有第一降解速率的聚氨酯组分; 以及具有比井下环境中的第一降解速率高的第二降解速率的腐蚀性添加剂组分。 另一方面，公开了临时密封井下区域的方法，包括：在井下环境中提供具有第一降解速率的聚氨酯组分; 提供具有比井下环境中的第一降解速率高的第二降解速率的腐蚀性添加剂组分; 混合聚氨酯组分和腐蚀性添加剂组分以形成可降解材料; 用可降解材料密封井下区域; 将可降解材料暴露于井下环境; 并降解可降解材料。

    METHOD AND APPARATUS FOR SELECTIVELY CONTROLLING FLUID FLOW
    27.
    发明申请
    METHOD AND APPARATUS FOR SELECTIVELY CONTROLLING FLUID FLOW 有权
    用于选择性控制流体流动的方法和装置

    公开(公告)号：US20130048129A1

    公开(公告)日：2013-02-28

    申请号：US13214795

    申请日：2011-08-22

    Applicant: Anil K. Sadana ,  Jiaxiang Ren ,  Ping Duan ,  David P. Gerrard

    Inventor： Anil K. Sadana ,  Jiaxiang Ren ,  Ping Duan ,  David P. Gerrard

    IPC: F16L55/027

    CPC classification number: E21B43/02 ,  E21B43/12 ,  E21B43/38 ,  F16L55/027

    Abstract: A flow control device and a method of controlling a flow, the flow control device including a flow path for a fluid therethrough and a material at least partially defining the flow path, the material operatively arranged with a surface energy less than that of the fluid for passively impeding an undesirable component of the fluid more than a desirable component of the fluid.

    Abstract translation: 一种流量控制装置和一种控制流量的方法，所述流量控制装置包括用于流体流过的流动路径以及至少部分地限定所述流动路径的材料，所述材料可操作地布置有比所述流体的表面能更小的表面能， 被动地阻止流体的不期望的部件超过流体的期望部件。

    Polymer nanocomposite
    29.
    发明授权
    Polymer nanocomposite 有权
    聚合物纳米复合材料

    公开(公告)号：US08314177B2

    公开(公告)日：2012-11-20

    申请号：US12878538

    申请日：2010-09-09

    Applicant: Soma Chakraborty ,  Ping Duan ,  Gaurav Agrawal ,  Michael H. Johnson

    Inventor： Soma Chakraborty ,  Ping Duan ,  Gaurav Agrawal ,  Michael H. Johnson

    IPC: C08K3/34 ,  C08K5/00

    CPC classification number: B82Y30/00 ,  C08K3/04 ,  C08K3/045 ,  C08K9/04

    Abstract: A polymer nanocomposite comprises a polymer; and a nanoparticle derivatized to include functional groups including carboxy, epoxy, ether, ketone, amine, hydroxy, alkoxy, alkyl, aryl, aralkyl, alkaryl, lactone, functionalized polymeric or oligomeric groups, or a combination comprising at least one of the forgoing functional groups. The variability in tensile strength and percent elongation for the polymer nanocomposite is less than the variability of these properties obtained where an underivatized nanoparticle is included in place of the derivatized nanoparticle.

    Abstract translation: 聚合物纳米复合材料包括聚合物; 衍生化为包括羧基，环氧基，醚，酮，胺，羟基，烷氧基，烷基，芳基，芳烷基，烷芳基，内酯，官能化聚合或低聚基团的官能团的纳米颗粒，或包含至少一种前述官能团 团体 聚合物纳米复合材料的拉伸强度和伸长百分比的变化小于其中包含未衍生的纳米颗粒代替衍生的纳米颗粒所获得的这些性质的变化性。

    Shape Memory Material Packer for Subterranean Use
    30.
    发明申请
    Shape Memory Material Packer for Subterranean Use 有权
    形状记忆材料包装机用于地下使用

    公开(公告)号：US20120175845A1

    公开(公告)日：2012-07-12

    申请号：US12985962

    申请日：2011-01-06

    Applicant: Ping Duan ,  Steve Rosenblatt

    Inventor： Ping Duan ,  Steve Rosenblatt

    IPC: E21B33/12

    CPC classification number: E21B33/1208 ,  E21B23/06 ,  E21B33/128

    Abstract: A shape memory polymer is initially fabricated to a size where its peripheral dimension will be at least as large as the borehole wall in which it is to be deployed. After the initial manufacturing the material temperature is elevated above the transition temperature and the material is stretched on a mandrel to retain its inside dimension as its outside dimension is reduced to size that will allow running the seal to a desired subterranean location without failing the material during the stretching. The material is allowed to cool below the transition temperature to hold the new shape. The material on the mandrel is then secured to a tubular string and delivered to the desired location. Wellbore fluid at given temperature raises the material again above the transition temperature, which causes the material to revert to its originally manufactured shape.

    Abstract translation: 形状记忆聚合物最初被制造成其外围尺寸将至少与其将被展开的钻孔壁一样大的尺寸。 在初始制造之后，材料温度升高到高于转变温度，并且材料在心轴上被拉伸以保持其内部尺寸，因为其外部尺寸减小到允许将密封件运行到期望的地下位置的尺寸，而不会在材料失效的情况下 伸展。 允许材料在转变温度以下冷却以保持新的形状。 然后将心轴上的材料固定到管状柱并且被输送到期望的位置。 在给定温度下的井眼液体再次使材料高于转变温度，这导致材料回复到其最初制造的形状。

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