公开(公告)号：US09840887B2

公开(公告)日：2017-12-12

申请号：US14710674

申请日：2015-05-13

申请人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

发明人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

IPC分类号： E21B33/12

CPC分类号： E21B33/1212 ,  E21B33/1208

摘要： A packoff assembly comprises: a tubing connectable mandrel; and at least one packoff element disposed on the mandrel; the packoff element comprising an annular seal comprising a carbon composite and having an inner surface and an opposing outer surface; the inner surface being in contact with a surface of the mandrel; a wear-resistant member at least partially encapsulating the seal; an annular guide member disposed on the mandrel; and a retainer member disposed between the guide member and the mandrel for securing the guide member to a predetermined position on the mandrel.

公开(公告)号：US20160333657A1

公开(公告)日：2016-11-17

申请号：US14710674

申请日：2015-05-13

申请人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

发明人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

IPC分类号： E21B33/12

CPC分类号： E21B33/1212 ,  E21B33/1208

摘要： A packoff assembly comprises: a tubing connectable mandrel; and at least one packoff element disposed on the mandrel; the packoff element comprising an annular seal comprising a carbon composite and having an inner surface and an opposing outer surface; the inner surface being in contact with a surface of the mandrel; a wear-resistant member at least partially encapsulating the seal; an annular guide member disposed on the mandrel; and a retainer member disposed between the guide member and the mandrel for securing the guide member to a predetermined position on the mandrel.

摘要翻译： 包装组件包括：可连接的管芯; 以及设置在心轴上的至少一个包装元件; 所述包装元件包括包含碳复合材料并具有内表面和相对的外表面的环形密封件; 所述内表面与所述心轴的表面接触; 至少部分地密封所述密封件的耐磨构件; 设置在心轴上的环形引导构件; 以及设置在引导构件和心轴之间的保持构件，用于将引导构件固定到心轴上的预定位置。

公开(公告)号：US20190249510A1

公开(公告)日：2019-08-15

申请号：US16393622

申请日：2019-04-24

申请人： Guijun Deng ,  Lei Zhao ,  Zhihui Zhang ,  Zhiyue Xu

发明人： Guijun Deng ,  Lei Zhao ,  Zhihui Zhang ,  Zhiyue Xu

IPC分类号： E21B33/12

CPC分类号： E21B33/1208

摘要： A one-way energy retaining device including a body, at least a portion of which comprises a degradable material; a protrusion extending radially from the body that allows movement of the device along a separate structure in a first direction and prevents movement along the separate structure in the opposite direction.

公开(公告)号：US11787991B1

公开(公告)日：2023-10-17

申请号：US17717878

申请日：2022-04-11

申请人： Lei Zhao ,  Zhiyue Xu ,  Zhihui Zhang ,  Guijun Deng

发明人： Lei Zhao ,  Zhiyue Xu ,  Zhihui Zhang ,  Guijun Deng

IPC分类号： C09K8/524 ,  C09K8/508

CPC分类号： C09K8/5083 ,  C09K8/524

摘要： A disintegrable rubber seal includes a rubber composite, which contains a rubber matrix including a crosslinked rubber; and an energetic filler configured to generate heat upon activation to disintegrate the rubber matrix. The energetic filler contains a metal and a metal oxide. A weight ratio of the energetic filler to the rubber matrix is about 6:1 to about 1:1.

公开(公告)号：US20190264529A1

公开(公告)日：2019-08-29

申请号：US16282399

申请日：2019-02-22

申请人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

发明人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

IPC分类号： E21B33/12 ,  E21B33/13 ,  C08L27/12 ,  C08K3/22

摘要： A downhole seal includes a field responsive shape changeable material configured as a layer having a first surface and a second surface, a first field generating electrode disposed in operable communication with the first surface, and a second field generating electrode disposed in operable communication with the second surface.

公开(公告)号：US20230323186A1

公开(公告)日：2023-10-12

申请号：US17717878

申请日：2022-04-11

申请人： Lei Zhao ,  Zhiyue Xu ,  Zhihui Zhang ,  Guijun Deng

发明人： Lei Zhao ,  Zhiyue Xu ,  Zhihui Zhang ,  Guijun Deng

IPC分类号： C09K8/508 ,  C09K8/524

CPC分类号： C09K8/5083 ,  C09K8/524

摘要： A disintegrable rubber seal includes a rubber composite, which contains a rubber matrix including a crosslinked rubber; and an energetic filler configured to generate heat upon activation to disintegrate the rubber matrix. The energetic filler contains a metal and a metal oxide. A weight ratio of the energetic filler to the rubber matrix is about 6:1 to about 1:1.

公开(公告)号：US10883332B2

公开(公告)日：2021-01-05

申请号：US16282399

申请日：2019-02-22

申请人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

发明人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

IPC分类号： E21B33/12 ,  E21B33/13

摘要： A downhole seal includes a field responsive shape changeable material configured as a layer having a first surface and a second surface, a first field generating electrode disposed in operable communication with the first surface, and a second field generating electrode disposed in operable communication with the second surface.

公开(公告)号：US09714709B2

公开(公告)日：2017-07-25

申请号：US14552832

申请日：2014-11-25

申请人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

发明人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

IPC分类号： F16J15/10 ,  B32B7/02 ,  F16J15/16 ,  B32B9/04 ,  B32B18/00 ,  C04B35/32 ,  B32B9/00 ,  C04B35/52 ,  F16J15/46 ,  C04B35/645 ,  C04B35/82 ,  C04B37/00

CPC分类号： F16J15/102 ,  B22F7/06 ,  B22F2302/40 ,  B22F2999/00 ,  B32B7/02 ,  B32B9/007 ,  B32B9/048 ,  B32B18/00 ,  B32B2264/108 ,  B32B2581/00 ,  C04B35/522 ,  C04B35/536 ,  C04B35/6303 ,  C04B35/645 ,  C04B35/82 ,  C04B35/83 ,  C04B37/001 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/3481 ,  C04B2235/349 ,  C04B2235/3826 ,  C04B2235/386 ,  C04B2235/3873 ,  C04B2235/40 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/421 ,  C04B2235/424 ,  C04B2235/428 ,  C04B2235/5292 ,  C04B2235/5418 ,  C04B2235/75 ,  C04B2237/363 ,  C04B2237/38 ,  C04B2237/584 ,  C22C32/0015 ,  C22C32/0084 ,  C22C47/14 ,  C22C49/14 ,  F16J15/108 ,  F16J15/16 ,  F16J15/46 ,  Y10T428/12458 ,  Y10T428/24942 ,  Y10T428/24983 ,  B22F2207/01

摘要： An article comprises a first member comprising a first carbon composite; and a second member disposed on the first member and comprising a second carbon composite and a reinforcing agent, wherein the second member has a gradient in the weight ratio of the second carbon composite to the reinforcing agent, and wherein the first member has one or more of the following properties different than those of the second member: elasticity; corrosion resistance; erosion resistance; or hardness.

公开(公告)号：US20160146350A1

公开(公告)日：2016-05-26

申请号：US14552832

申请日：2014-11-25

申请人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

发明人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

IPC分类号： F16J15/10 ,  B32B7/02 ,  F16J15/16 ,  B32B9/04 ,  B32B18/00 ,  C04B35/52 ,  B32B9/00

CPC分类号： F16J15/102 ,  B22F7/06 ,  B22F2302/40 ,  B22F2999/00 ,  B32B7/02 ,  B32B9/007 ,  B32B9/048 ,  B32B18/00 ,  B32B2264/108 ,  B32B2581/00 ,  C04B35/522 ,  C04B35/536 ,  C04B35/6303 ,  C04B35/645 ,  C04B35/82 ,  C04B35/83 ,  C04B37/001 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/3481 ,  C04B2235/349 ,  C04B2235/3826 ,  C04B2235/386 ,  C04B2235/3873 ,  C04B2235/40 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/421 ,  C04B2235/424 ,  C04B2235/428 ,  C04B2235/5292 ,  C04B2235/5418 ,  C04B2235/75 ,  C04B2237/363 ,  C04B2237/38 ,  C04B2237/584 ,  C22C32/0015 ,  C22C32/0084 ,  C22C47/14 ,  C22C49/14 ,  F16J15/108 ,  F16J15/16 ,  F16J15/46 ,  Y10T428/12458 ,  Y10T428/24942 ,  Y10T428/24983 ,  B22F2207/01

摘要： An article comprises a first member comprising a first carbon composite; and a second member disposed on the first member and comprising a second carbon composite and a reinforcing agent, wherein the second member has a gradient in the weight ratio of the second carbon composite to the reinforcing agent, and wherein the first member has one or more of the following properties different than those of the second member: elasticity; corrosion resistance; erosion resistance; or hardness.

摘要翻译： 一种制品包括包含第一碳复合材料的第一构件; 以及第二构件，其设置在所述第一构件上并且包括第二碳复合物和增强剂，其中所述第二构件具有所述第二碳复合物与所述增强剂的重量比的梯度，并且其中所述第一构件具有一个或多个 以下属性与第二种不同：弹性; 耐腐蚀性能; 耐腐蚀性; 或硬度。

公开(公告)号：US10300627B2

公开(公告)日：2019-05-28

申请号：US14553472

申请日：2014-11-25

申请人： Lei Zhao ,  Zhiyue Xu

发明人： Lei Zhao ,  Zhiyue Xu

IPC分类号： B28B17/00 ,  B22D23/06 ,  C04B35/52 ,  C04B35/63 ,  C04B35/645 ,  C04B35/82 ,  C04B35/83

摘要： A method of forming a flexible carbon composite self-lubricating seal includes compressing a carbon composite mixture into a mold forming a flexible carbon composite self-lubricating annular seal.