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516 条记录 (耗时 0.042 秒)

    Walker
    11.
    外观设计
    Walker 有权

    公开(公告)号：USD985256S1

    公开(公告)日：2023-05-09

    申请号：US29852235

    申请日：2022-09-06

    申请人： Lei Wang

    设计人： Lei Wang

    摘要： FIG. 1 is a first perspective view of a walker showing my new design;
    FIG. 2 is a second perspective view thereof;
    FIG. 3 is a front view thereof;
    FIG. 4 is a back view thereof;
    FIG. 5 is a left side view thereof;
    FIG. 6 is a right side view thereof;
    FIG. 7 is a top view thereof; and,
    FIG. 8 is a bottom view thereof.
    The broken lines shown in the drawings depict portions of the walker that form no part of the claimed design.

    Method of operating a tubular string assembly within a wellbore
    12.
    发明授权
    Method of operating a tubular string assembly within a wellbore 有权

    公开(公告)号：US11365608B2

    公开(公告)日：2022-06-21

    申请号：US16148684

    申请日：2018-10-01

    申请人： Haining Zheng ,  Lei Wang ,  Michael W. Walker

    发明人： Haining Zheng ,  Lei Wang ,  Michael W. Walker

    IPC分类号： E21B41/00 ,  E21B47/00 ,  E21B44/00 ,  E21B21/08 ,  E21B21/06

    摘要： A method of moving a string assembly within a wellbore is disclosed. In some embodiments, the method comprises moving the string assembly within the wellbore; obtaining surface data regarding at least one parameter associated with moving the string assembly within the wellbore over a range of depths; modeling the at least one parameter over the range of depths for a plurality of assumed friction factors to obtain modeled data for each assumed friction factor; calculating a derivative of the surface data over the range of depths; calculating a derivative of the modeled data over the range of depths; comparing the derivative of the surface data to the derivative of the modeled data; determining one or more local friction factors for the range of depths based on the comparison; and adjusting at least one string assembly operating parameter based on the one or more local friction factors.

    Method of Operating a Tubular String Assembly within a Wellbore
    14.
    发明申请
    Method of Operating a Tubular String Assembly within a Wellbore 审中-公开

    公开(公告)号：US20190178059A1

    公开(公告)日：2019-06-13

    申请号：US16148684

    申请日：2018-10-01

    申请人： Haining Zheng ,  Lei Wang ,  Michael W. Walker

    发明人： Haining Zheng ,  Lei Wang ,  Michael W. Walker

    IPC分类号： E21B41/00 ,  E21B47/00

    摘要： A method of moving a string assembly within a wellbore is disclosed. In some embodiments, the method comprises moving the string assembly within the wellbore; obtaining surface data regarding at least one parameter associated with moving the string assembly within the wellbore over a range of depths; modeling the at least one parameter over the range of depths for a plurality of assumed friction factors to obtain modeled data for each assumed friction factor; calculating a derivative of the surface data over the range of depths; calculating a derivative of the modeled data over the range of depths; comparing the derivative of the surface data to the derivative of the modeled data; determining one or more local friction factors for the range of depths based on the comparison; and adjusting at least one string assembly operating parameter based on the one or more local friction factors.

    Systems and methods for characterizing a spatial frequency of interface regions within a subterranean formation
    15.
    发明授权
    Systems and methods for characterizing a spatial frequency of interface regions within a subterranean formation 有权

    公开(公告)号：US10302812B2

    公开(公告)日：2019-05-28

    申请号：US14830777

    申请日：2015-08-20

    申请人： Lei Wang ,  Richard E. Beckham ,  Scott R. Buechler

    发明人： Lei Wang ,  Richard E. Beckham ,  Scott R. Buechler

    IPC分类号： G01V11/00 ,  E21B44/00

    摘要： Systems and methods for characterizing a spatial frequency of interface regions within a subterranean formation. A first method may include drilling a wellbore with a drilling assembly and measuring a downhole parameter during the drilling. The downhole parameter may be indicative of a lithology of a portion of the subterranean formation that is proximal to the drilling assembly. The first method also may include calculating an information entropy of the downhole parameter and characterizing the spatial frequency of the interface regions based upon the information entropy. A second method may include calculating the information entropy as a function of distance within a first wellbore and characterizing the spatial frequency of the interface regions. The second method also may include drilling a second wellbore within the subterranean formation and regulating the drilling based upon the spatial frequency of the interface regions. The systems include systems that perform the methods.

    End user authentication using a virtual private network
    17.
    发明授权
    End user authentication using a virtual private network 有权

    公开(公告)号：US09942200B1

    公开(公告)日：2018-04-10

    申请号：US14558669

    申请日：2014-12-02

    申请人： Dan Tan ,  Lei Wang ,  Bin Shi ,  Liulin Yang

    发明人： Dan Tan ,  Lei Wang ,  Bin Shi ,  Liulin Yang

    IPC分类号： H04L29/06

    CPC分类号： H04L63/0272 ,  H04L63/0281 ,  H04L63/0823 ,  H04L63/083

    摘要： A user is provisioned for a Web service by supplying a user name and password. A digital certificate and VPN identifier are generated and downloaded to the user's computer. The VPN identifier and user identifier are stored into a database. The user accesses the Web service and establishes a VPN using the certificate and VPN identifier. A user identifier, user name or user password is not required. A gateway computer uses the VPN identifier to access the database previously established during the provisioning session to retrieve the user identifier. Retrieval of the user identifier validates that the computing device is authorized to use the Web service. The gateway computer stores the client IP address and a mapping to the user identifier into a database. A proxy server retrieves the user identifier from the database using the IP address and includes the user identifier in Web traffic for a remote computer.

    Microfluidic device and its use for positioning of cells or organisms
    20.
    发明授权
    Microfluidic device and its use for positioning of cells or organisms 有权
    微流体装置及其用于定位细胞或生物体的用途

    公开(公告)号：US09511366B2

    公开(公告)日：2016-12-06

    申请号：US13991848

    申请日：2012-01-13

    申请人： Rui Ma ,  Lan Xie ,  Tian Qiu ,  Lei Wang ,  Wanli Xing ,  Jing Cheng

    发明人： Rui Ma ,  Lan Xie ,  Tian Qiu ,  Lei Wang ,  Wanli Xing ,  Jing Cheng

    IPC分类号： B01L3/00 ,  C12M3/00 ,  C12M1/32 ,  C12M3/06

    CPC分类号： B01L3/5027 ,  C12M21/06 ,  C12M23/12 ,  C12M23/16

    摘要： A micro fluidic device comprises one microstructure layer (5) and one cover layer (1), wherein the cover layer (1) is connected to the microstructure layer (5). The microstructure layer (5) comprises one bottom layer and a plurality of microstructures on it to position samples. The cover layer (1) comprises one top layer, one positioning well (6) and at least one inlet pool (4). The positioning well (6) is right above the microstructures and connected with each other. The inlet pools (4) and the positioning well (6) are connected by microchannels (3) which are formed between the microstructure layer (5) and the cover layer (1). The micro fluidic device can be applied in vitro fertilization, in determining how glial cells affect neurons, in constructing neural network and in detecting cell growth conditions.

    摘要翻译： 微流体装置包括一个微结构层（5）和一个覆盖层（1），其中覆盖层（1）连接到微结构层（5）。 微结构层（5）包括一个底层和多个微结构，用于定位样品。 覆盖层（1）包括一个顶层，一个定位孔（6）和至少一个入口池（4）。 定位井（6）位于微结构的正上方并相互连接。 入口池（4）和定位井（6）通过形成在微结构层（5）和覆盖层（1）之间的微通道（3）连接。 微流体装置可以应用于体外受精，确定神经胶质细胞如何影响神经元，构建神经网络和检测细胞生长条件。