公开(公告)号：US09120898B2

公开(公告)日：2015-09-01

申请号：US13179230

申请日：2011-07-08

Applicant: Jiaxiang Ren ,  David Peter Gerrard ,  James Edward Goodson ,  Ping Duan ,  Lillian Guo

Inventor： Jiaxiang Ren ,  David Peter Gerrard ,  James Edward Goodson ,  Ping Duan ,  Lillian Guo

IPC: B29C43/02 ,  C08G75/14 ,  B29C43/00 ,  C08L81/04

CPC classification number: C08G75/14 ,  B29C43/003 ,  C08L81/04

Abstract: A method of preparing a cured thermoplastic material includes curing a thermoplastic polymer having a thermal decomposition temperature greater than or equal to about 200° C., at a temperature of about 200° C. to about 400° C., for a total time of less than or equal to 200 hours. A method of making a shape memory material also includes curing a thermoplastic polymer to prepare a cured thermoplastic material.

Abstract translation: 制备固化的热塑性材料的方法包括在约200℃至约400℃的温度下固化热分解温度大于或等于约200℃的热塑性聚合物，总共时间为 小于或等于200小时。 制备形状记忆材料的方法还包括固化热塑性聚合物以制备固化的热塑性材料。

公开(公告)号：US08940841B2

公开(公告)日：2015-01-27

申请号：US13477230

申请日：2012-05-22

Applicant: Ping Duan ,  Gaurav Agrawal ,  David P. Gerrard

Inventor： Ping Duan ,  Gaurav Agrawal ,  David P. Gerrard

IPC: D06M14/00 ,  C08G61/10 ,  C08L65/02 ,  C08F246/00

CPC classification number: C08G61/10 ,  C08G2261/135 ,  C08G2261/312 ,  C08G2261/592 ,  C08G2261/76 ,  C08L65/02

Abstract: A crosslinked product of a polyarylene is disclosed, having high-temperature elastomeric properties and excellent chemical resistance. The crosslinked materials are useful in oil and gas downhole applications in the form of either solids or foams. Methods for the manufacture of the crosslinked product and articles comprising the product are also disclosed.

Abstract translation: 公开了聚亚芳基的交联产物，其具有高温弹性体性能和优异的耐化学性。 交联材料可用于固体或泡沫形式的油气井下应用。 还公开了制备交联产物的方法和包含产品的制品。

公开(公告)号：US20140374086A1

公开(公告)日：2014-12-25

申请号：US14479177

申请日：2014-09-05

Applicant: Gaurav Agrawal ,  Zhiyue Xu ,  Ping Duan ,  James Goodson ,  Andre Porter ,  James B. Crews

Inventor： Gaurav Agrawal ,  Zhiyue Xu ,  Ping Duan ,  James Goodson ,  Andre Porter ,  James B. Crews

IPC: E21B41/00

CPC classification number: E21B41/00

Abstract: A reconfigurable downhole article is disclosed. The article comprises a base material. The article also comprises a removable material disposed on or within the base material that is configured for removal from the base material in response to a wellbore condition, wherein the base material and the removable material define a base article that is configured to perform a first function, and wherein upon removal of the removable material, the base material defines a modified article that is configured to perform a second function that is different than the first function.

Abstract translation: 公开了可重新配置的井下物品。 该制品包括基材。 所述制品还包括设置在所述基材上或内部的可移除材料，所述可移除材料构造成响应于井筒状况从所述基材移除，其中所述基材和所述可移除材料限定被配置为执行第一功能的基底制品 ，并且其中在移除所述可移除材料时，所述基材限定被配置为执行与所述第一功能不同的第二功能的经修饰制品。

公开(公告)号：US08604157B2

公开(公告)日：2013-12-10

申请号：US13303688

申请日：2011-11-23

Applicant: David P. Gerrard ,  Jiaxiang Ren ,  Ping Duan

Inventor： David P. Gerrard ,  Jiaxiang Ren ,  Ping Duan

IPC: C08G75/00

CPC classification number: C08J3/24 ,  C08J2381/04 ,  C08J2381/06 ,  C08L77/00 ,  C08L79/08

Abstract: A composition includes a crosslinked product of a polyphenylene sulfide and a polyphenylsulfone. A method for the manufacture of the crosslinked product of a polyphenylene sulfide and a polyphenylsulfone includes heating the polyphenylene sulfide and the polyphenylsulfone in presence of a crosslinking agent at a temperature and for a time effective to form the crosslinked product of polyphenylene sulfide and polyphenylsulfone.

Abstract translation: 组合物包括聚苯硫醚和聚苯砜的交联产物。 制备聚苯硫醚和聚苯砜的交联产物的方法包括在交联剂存在下，在有效形成聚苯硫醚和聚苯砜的交联产物的温度和时间下加热聚苯硫醚和聚苯砜。

公开(公告)号：US20120067587A1

公开(公告)日：2012-03-22

申请号：US12883656

申请日：2010-09-16

Applicant: Gaurav Agrawal ,  Ping Duan

Inventor： Gaurav Agrawal ,  Ping Duan

IPC: E21B43/02 ,  C08J9/36

CPC classification number: E21B43/02 ,  C08J9/36 ,  C08J9/38 ,  C08J2375/04

Abstract: A method of deploying a borehole filtration device is provided utilizing the steps of: deploying a filtration device comprising a polymer foam having a first cell structure, a portion of the molecular structure of which polymer foam is degradable by exposure to a post-treatment fluid, into a borehole; and exposing the polymer foam to the post-treatment fluid, thereby modifying the cell structure of the polymer foam to a second cell structure.

Abstract translation: 提供了一种部署钻孔过滤装置的方法，该方法采用以下步骤：展开包括聚合物泡沫的过滤装置，所述聚合物泡沫具有第一泡孔结构，通过暴露于后处理流体，聚合物泡沫可分解结构的一部分可降解， 进入井眼 并将聚合物泡沫暴露于后处理流体，从而将聚合物泡沫体的泡孔结构改变为第二泡孔结构。

公开(公告)号：US07828055B2

公开(公告)日：2010-11-09

申请号：US11870992

申请日：2007-10-11

Applicant: Darrin L. Willauer ,  Ping Duan

Inventor： Darrin L. Willauer ,  Ping Duan

IPC: E21B43/00

CPC classification number: E21B43/04 ,  E21B43/082 ,  E21B43/103

Abstract: An apparatus and method for filling a defined space, such as an annulus around a production tubular within a wellbore, includes a compliant porous material. The compliant porous material can be compressed and maintained in a compressed state by incorporation of a deployment modifier which may be a water-soluble or oil-soluble adhesive or biopolymer, used as an impregnant, a coating, or a casing. The production tubular can be positioned at a desired location and the compliant porous material exposed to a deployment modifier neutralizing agent, which then dissolves or otherwise prevents the deployment modifier from continuing to inhibit the deployment. Thus, deployment can be delayed to an optimum time by controlling exposure of the deployment modifier to the deployment modifier neutralizing agent.

Abstract translation: 用于填充限定空间的装置和方法，例如在井筒内的生产管周围的环形空间，包括柔性多孔材料。 柔性多孔材料可以通过结合作为浸渍剂，涂层或套管的水溶性或油溶性粘合剂或生物聚合物的配位改性剂而被压缩并保持在压缩状态。 生产管状物可以位于期望的位置，并且顺应性多孔材料暴露于部署改性剂中和剂，然后溶解或以其它方式阻止部署改良剂继续阻止部署。 因此，通过控制部署修改剂暴露于部署改性剂中和剂，部署可以延迟到最佳时间。

公开(公告)号：US20100236794A1

公开(公告)日：2010-09-23

申请号：US12802223

申请日：2010-06-02

Applicant: Ping Duan ,  Paul M. McElfresh

Inventor： Ping Duan ,  Paul M. McElfresh

IPC: E21B33/12

CPC classification number: E21B33/127 ,  C08G18/44 ,  C08G2101/0033

Abstract: Sealing devices such as packers comprise a shape-memory material having a compressed run-in position or shape and an original expanded position or shape. The shape-memory material may comprise a polyurethane foam material held in the compressed run-in position by an adhesion material that is dissolvable by a fluid. The fluid may be a wellbore fluid already present in the wellbore or a fluid pumped down the wellbore after the sealing device is disposed within the wellbore. The fluid may also be a production fluid from the well. Upon being contacted by the fluid, the adhesion material dissolves and the shape-memory material expands to its original expanded position or shape, thereby sealing and dividing the annulus of the wellbore.

Abstract translation: 诸如封隔器的密封装置包括具有压缩的入口位置或形状和原始扩展位置或形状的形状记忆材料。 形状记忆材料可以包括通过可被流体溶解的粘合材料保持在压缩的输入位置的聚氨酯泡沫材料。 在密封装置设置在井眼内之前，流体可以是已经存在于井眼中的井眼流体​​或者在井眼下方泵送的流体。 流体也可以是来自井的生产流体。 当被流体接触时，粘合材料溶解并且形状记忆材料膨胀到其原始的扩张位置或形状，从而密封和分割井眼的环。

公开(公告)号：US20100089565A1

公开(公告)日：2010-04-15

申请号：US12250062

申请日：2008-10-13

Applicant: Ping Duan ,  Paul McElfresh

Inventor： Ping Duan ,  Paul McElfresh

IPC: E21B43/04 ,  B29C43/32 ,  B29C43/52 ,  B29C43/58

CPC classification number: E21B43/082

Abstract: Filtration devices may include a shape-memory material having a compressed run-in position or shape and an original expanded position or shape. The shape-memory material may include an open cell porous rigid polyurethane foam material held in the compressed run-in position at the temperature below glass transition temperature (Tg). The foam material in its compressed run-in position may be covered with a fluid-dissolvable polymeric film and/or a layer of fluid-degradable plastic. Once filtration devices are in place in downhole and are contacted by the fluid for a given amount of time at temperature, the devices may expand and totally conform to the borehole to prevent the production of undesirable solids from the formation.

Abstract translation: 过滤装置可以包括具有压缩的入口位置或形状和原始扩展位置或形状的形状记忆材料。 形状记忆材料可以包括在低于玻璃化转变温度（Tg）的温度下保持在压缩的输入位置的开孔多孔硬质聚氨酯泡沫材料。 处于其压缩进入位置的泡沫材料可以被可流体溶解的聚合物膜和/或一层可流体降解的塑料覆盖。 一旦过滤装置在井下就位并且在温度下被流体接触给定的时间，则装置可以膨胀并完全符合钻孔，以防止从地层产生不期望的固体。

公开(公告)号：US20090084539A1

公开(公告)日：2009-04-02

申请号：US11904934

申请日：2007-09-28

Applicant: Ping Duan ,  Paul M. McElfresh

Inventor： Ping Duan ,  Paul M. McElfresh

IPC: E21B33/12

CPC classification number: E21B33/127 ,  C08G18/44 ,  C08G2101/0033

Abstract: Sealing devices such as packers comprise a shape-memory material having a compressed run-in position or shape and an original expanded position or shape. The shape-memory material may comprise a polyurethane foam material held in the compressed run-in position by an adhesion material that is dissolvable by a fluid. The fluid may be a wellbore fluid already present in the wellbore or a fluid pumped down the wellbore after the sealing device is disposed within the wellbore. The fluid may also be a production fluid from the well. Upon being contacted by the fluid, the adhesion material dissolves and the shape-memory material expands to its original expanded position or shape, thereby sealing and dividing the annulus of the wellbore.

Abstract translation: 诸如封隔器的密封装置包括具有压缩的入口位置或形状和原始扩展位置或形状的形状记忆材料。 形状记忆材料可以包括通过可被流体溶解的粘合材料保持在压缩的输入位置的聚氨酯泡沫材料。 在密封装置设置在井眼内之前，流体可以是已经存在于井眼中的井眼流体​​或者在井眼下方泵送的流体。 流体也可以是来自井的生产流体。 当被流体接触时，粘合材料溶解并且形状记忆材料膨胀到其原始的扩张位置或形状，从而密封和分割井眼的环。

公开(公告)号：US20220010659A1

公开(公告)日：2022-01-13

申请号：US16927056

申请日：2020-07-13

Applicant: Anil Sadana ,  Ping Duan

Inventor： Anil Sadana ,  Ping Duan

IPC: E21B43/08 ,  B01D71/32

Abstract: A fluid control device includes a support structure configured to be deployed to a selected location in a borehole, and a filtration medium disposed at the support structure and configured to filter a fluid, the filtration medium configured to be compacted from an initial shape to a compacted shape prior to deployment in the borehole. The filtration medium includes a first polymeric material configured to withstand a temperature at the selected location, the first polymeric material forming a porous structure including a plurality of fluid passages, and a second polymeric material including a shape memory polymer disposed within the fluid passages, the shape memory polymer configured to expand in the plurality of fluid passages and cause the filtration medium to expand in the borehole.