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公开(公告)号：US07926565B2
公开(公告)日：2011-04-19
申请号：US12250062
申请日：2008-10-13
Applicant: Ping Duan , Paul M. McElfresh
Inventor： Ping Duan , Paul M. McElfresh
IPC: E21B43/08
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.
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32.发明申请公开(公告)号：US20080087431A1
公开(公告)日：2008-04-17
申请号：US11870992
申请日：2007-10-11
Applicant: Darrin L. Willauer , Ping Duan
Inventor： Darrin L. Willauer , Ping Duan
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 deployment. Thus, deployment can be delayed to an optimum time by preventing exposure of the deployment modifier to the deployment modifier neutralizing agent. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b)
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使用作为浸渍剂，涂层或套管的水溶性或油溶性粘合剂或生物聚合物的展开调节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，其然后溶解或以其他方式阻止部署改良剂继续阻止部署。 因此，通过防止部署改性剂暴露于部署改性剂中和剂，部署可以延迟到最佳时间。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72（b）
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公开(公告)号：US11261283B2
公开(公告)日：2022-03-01
申请号：US16400400
申请日：2019-05-01
Applicant: Ping Duan , Anil Sadana
Inventor： Ping Duan , Anil Sadana
IPC: C08G18/10 , E21B41/00 , E21B33/14 , E21B37/02 , C08G18/42 , C08G18/32 , C08G18/66 , C08G18/76 , C08G18/48
Abstract: A method for operation in wellbore, the method comprises: pumping a fluid barrier into a wellbore through a tubular, the fluid barrier being operable to separate a cement slurry from a second fluid; the fluid barrier comprising a polyurethane member derived from a polyurethane forming composition comprising a para-phenylene diisocyanate terminated polycarbonate prepolymer and an aromatic diol.
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公开(公告)号：US10329407B2
公开(公告)日：2019-06-25
申请号：US14953472
申请日：2015-11-30
Applicant: Ping Duan , Anil K. Sadana , Suman Khatiwada , Yingqing Xu , Xiao Wang
Inventor： Ping Duan , Anil K. Sadana , Suman Khatiwada , Yingqing Xu , Xiao Wang
Abstract: A degradable polymer composition comprises a polyurethane comprising ester groups in a backbone of the polyurethane and carboxylic acid groups attached to the backbone of the polyurethane; and a filler comprising one or more of the following: a powder comprising particles having an average particle size of about 5 microns to about 500 microns; or a fiber having an average length of about ⅛ inch to about 5 inches. Also disclosed are articles comprising the composition. A method to degrade the article includes exposing the article to a fluid at a temperature of about 25° C. to about 300° C.
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公开(公告)号：US20180119538A1
公开(公告)日：2018-05-03
申请号：US15338809
申请日：2016-10-31
Applicant: Levi Oberg , Ping Duan
Inventor： Levi Oberg , Ping Duan
Abstract: A system and method for confirming ignition of a fuel source in a wellbore is disclosed. The system includes a tool, a fuel source associated with the tool, a control unit to ignite the fuel source, and a sensor to receive an ignition parameter.
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Patent Agency Ranking
36.发明授权公开(公告)号：US09144925B2
公开(公告)日：2015-09-29
申请号：US13343264
申请日：2012-01-04
Applicant: Jiaxiang Ren , David P. Gerrard , James E. Goodson , Ping Duan , Gaurav Agrawal
Inventor： Jiaxiang Ren , David P. Gerrard , James E. Goodson , Ping Duan , Gaurav Agrawal
CPC classification number: B29C43/003 , B29K2081/04
Abstract: Disclosed is a process for making shape memory polyphenylene sulfide, comprising: curing polyphenylene sulfide to produce cured polyphenylene sulfide; comminuting the cured polyphenylene sulfide to form cured polyphenylene sulfide particles; disposing the cured polyphenylene sulfide particles in a mold; heating the mold for flowing the cured polyphenylene sulfide; compressing, by applying a compressive force, the cured polyphenylene sulfide; cooling the cured polyphenylene sulfide; relieving the compressive force; and de-molding the cured polyphenylene sulfide to produce the shape memory polyphenylene sulfide.
Abstract translation: 公开了一种形成记忆聚苯硫醚的方法，其包括：固化聚苯硫醚以产生固化的聚苯硫醚; 粉碎固化的聚苯硫醚以形成固化的聚苯硫醚颗粒; 将固化的聚苯硫醚颗粒置于模具中; 加热模具以使固化的聚苯硫醚流动; 通过施加压缩力来压缩固化的聚苯硫醚; 冷却固化的聚苯硫醚; 减轻压缩力; 并将固化的聚苯硫醚脱模以产生形状记忆聚苯硫醚。
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37.发明授权Polyarylene compositions for downhole applications, methods of manufacture, and uses thereof 有权用于井下应用的聚亚芳基组合物，其制造方法及其应用公开(公告)号：US08829119B2
公开(公告)日：2014-09-09
申请号：US13246250
申请日：2011-09-27
Applicant: Ping Duan , Gaurav Agrawal , David P. Gerrard
Inventor： Ping Duan , Gaurav Agrawal , David P. Gerrard
IPC: D06M14/00 , C08L65/02 , C08G61/10 , 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。
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38.发明申请公开(公告)号：US20130168894A1
公开(公告)日：2013-07-04
申请号：US13343264
申请日：2012-01-04
Applicant: Jiaxiang Ren , David P. Gerrard , James E. Goodson , Ping Duan , Gaurav Agrawal
Inventor： Jiaxiang Ren , David P. Gerrard , James E. Goodson , Ping Duan , Gaurav Agrawal
IPC: B29C43/02
CPC classification number: B29C43/003 , B29K2081/04
Abstract: Disclosed is a process for making shape memory polyphenylene sulfide, comprising: curing polyphenylene sulfide to produce cured polyphenylene sulfide; comminuting the cured polyphenylene sulfide to form cured polyphenylene sulfide particles; disposing the cured polyphenylene sulfide particles in a mold; heating the mold for flowing the cured polyphenylene sulfide; compressing, by applying a compressive force, the cured polyphenylene sulfide; cooling the cured polyphenylene sulfide; relieving the compressive force; and de-molding the cured polyphenylene sulfide to produce the shape memory polyphenylene sulfide.
Abstract translation: 公开了一种形成记忆聚苯硫醚的方法，其包括：固化聚苯硫醚以产生固化的聚苯硫醚; 粉碎固化的聚苯硫醚以形成固化的聚苯硫醚颗粒; 将固化的聚苯硫醚颗粒置于模具中; 加热模具以使固化的聚苯硫醚流动; 通过施加压缩力来压缩固化的聚苯硫醚; 冷却固化的聚苯硫醚; 减轻压缩力; 并将固化的聚苯硫醚脱模以产生形状记忆聚苯硫醚。
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39.发明申请CROSSLINKED BLENDS OF POLYPHENYLENE SULFIDE AND POLYPHENYLSULFONE FOR DOWNHOLE APPLICATIONS, METHODS OF MANUFACTURE, AND USES THEREOF 有权聚苯乙烯和聚苯乙烯的交联共混物用于井下应用，其制造方法及其用途公开(公告)号：US20130131210A1
公开(公告)日：2013-05-23
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: C08G75/23 , C08K5/549 , C08K3/34 , C08L77/00 , C08L61/00 , C08L81/06 , C08L81/04 , C08G85/00 , C08G75/16 , C08L79/08 , B82Y30/00
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。
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40.发明申请SHAPED MEMORY POLYPHENYLENE SULFIDE (PPS) FOR DOWNHOLE PACKER APPLICATIONS 有权用于卧式包装机应用的形状记忆聚苯乙烯（PPS）公开(公告)号：US20130062049A1
公开(公告)日：2013-03-14
申请号：US13229923
申请日：2011-09-12
Applicant: Jiaxiang Ren , David P. Gerrard , James E. Goodson , Li Guo , Ping Duan
Inventor： Jiaxiang Ren , David P. Gerrard , James E. Goodson , Li Guo , Ping Duan
CPC classification number: B29C44/5636 , E21B33/1208
Abstract: A downhole element to isolate or complete a wellbore includes a shape memory material including polyphenylene sulfide. The polyphenylene sulfide is the cure product of being cured at a temperature of about 200° C. to about 400° C., for a total time of less than or equal to 200 hours. The shape memory material is thermally activated between an actuated and unactuated shape, and the polyphenylene sulfide in the shape memory material is a closed cell foam, open cell foam, or solid.
Abstract translation: 用于隔离或完成井孔的井下元件包括包含聚苯硫醚的形状记忆材料。 聚苯硫醚是在约200℃至约400℃的温度下固化的固化产物，总时间小于或等于200小时。 形状记忆材料在致动和未致动形状之间被热活化，并且形状记忆材料中的聚苯硫醚是闭孔泡沫，开孔泡沫或固体。
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