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公开(公告)号：US10768333B2
公开(公告)日：2020-09-08
申请号：US15236682
申请日：2016-08-15
发明人： Jian Yang
摘要： A downhole electromagnetic logging tool having two or more antenna groups spaced along a longitudinal axis of the logging tool, each antenna group having one antenna or multiple antennas proximally located or collocated, each antenna group having at least one tilted antenna, at least one antenna group having, in addition to the tilted antenna, at least one transverse or axial antenna, and any given pair of antenna groups comprising at least four antennas is disclosed. The logging tool is disposed in a wellbore penetrating a formation and, while rotating, measures a tool rotation angle, transmits an electromagnetic signal from one antenna group, and receives the electromagnetic signal with another antenna group. Elements of an electromagnetic coupling tensor are determined using the received electromagnetic signal and the measured tool rotation angle, and properties of the formation using one or more elements of the determined electromagnetic coupling tensor are inferred.
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公开(公告)号：US11480705B2
公开(公告)日：2022-10-25
申请号：US14061566
申请日：2013-10-23
发明人： Jian Yang
IPC分类号： G01V3/28
摘要： The present disclosure describes various antenna assemblies, each antenna coil being disposed about a tool body section in an antenna pathway. The antenna pathway passes through alternating grooves and lands. In each embodiment, at least one of the grooves is disposed in the tool body section at a non-axial direction relative to the longitudinal axis of the tool body section. In an embodiment, the antenna coil is an axial coil or a tilted coil. Additional grooves oriented at axial direction may be disposed on the tool body section. Each of the antenna assemblies disclosed may be employed in an electromagnetic logging tool for providing directional measurements while drilling.
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公开(公告)号：US20170102478A1
公开(公告)日：2017-04-13
申请号：US15286256
申请日：2016-10-05
发明人： Jian Yang
CPC分类号： E21B47/122 , G01V3/30
摘要： A downhole electromagnetic modular system has two or more antenna modules incorporated into a drill string, each antenna module comprising an antenna sub and an antenna. The antenna modules may be spaced apart by one or more spacer modules, battery modules, spacer-battery modules, and/or downhole tools. The connected modules (and/or downhole tools) provide an electrical pathway throughout the modular system. An antenna module may have an inner connector formed on its antenna sub between the antenna of that antenna module and a retainer of that antenna sub. An antenna module may have two antenna groups located towards opposite ends of the antenna module and spaced apart by more than half the length of the antenna module. If an antenna group has more than one antenna, those antennas may be co-located or in proximity to one another. A probe may be held fixed by the retainer of the inner pin connector.
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公开(公告)号：US20160266270A1
公开(公告)日：2016-09-15
申请号：US15163616
申请日：2016-05-24
发明人： Jian Yang
IPC分类号： G01V3/28
CPC分类号： G01V3/28
摘要： The present disclosure describes various antenna assemblies, each antenna coil being disposed about a tool body section in an antenna pathway. The antenna pathway passes through alternating grooves and lands. At least one of the grooves is disposed in the tool body section at a non-axial direction relative to the longitudinal axis of the tool body section. The antenna coil may be an axial coil or a tilted coil. Additional grooves oriented at axial direction may be disposed on the tool body section. Various methods include acquiring a plurality of data pairs using one or more antenna coils, each data pair comprising an induced signal at a receiver and a corresponding toolface angle using a tool including at least one antenna assembly, to generate a measurement including obtaining information about the directionality of the formation by calculating areas of an induced signal function approximated by the plurality of data pairs.
摘要翻译： 本公开描述了各种天线组件，每个天线线圈围绕天线通道中的工具主体部分设置。 天线通道通过交替的沟槽和平台。 至少一个凹槽相对于工具主体部分的纵向轴线在非轴向方向上设置在工具主体部分中。 天线线圈可以是轴向线圈或倾斜线圈。 在轴向方向上定向的附加槽可以设置在工具主体部分上。 各种方法包括使用一个或多个天线线圈获取多个数据对，每个数据对在接收机处包括感应信号，并且使用包括至少一个天线组件的工具来产生对应的工具面角度，以产生包括获得关于 通过计算由多个数据对近似的感应信号函数的面积来形成的方向性。
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公开(公告)号：US10345477B2
公开(公告)日：2019-07-09
申请号：US15163616
申请日：2016-05-24
发明人： Jian Yang
IPC分类号： G01V3/28
摘要： The present disclosure describes various antenna assemblies, each antenna coil being disposed about a tool body section in an antenna pathway. The antenna pathway passes through alternating grooves and lands. At least one of the grooves is disposed in the tool body section at a non-axial direction relative to the longitudinal axis of the tool body section. The antenna coil may be an axial coil or a tilted coil. Additional grooves oriented at axial direction may be disposed on the tool body section. Various methods include acquiring a plurality of data pairs using one or more antenna coils, each data pair comprising an induced signal at a receiver and a corresponding toolface angle using a tool including at least one antenna assembly, to generate a measurement including obtaining information about the directionality of the formation by calculating areas of an induced signal function approximated by the plurality of data pairs.
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6.发明申请公开(公告)号：US20170052273A1
公开(公告)日：2017-02-23
申请号：US15236682
申请日：2016-08-15
发明人： Jian Yang
IPC分类号： G01V3/28
摘要： A downhole electromagnetic logging tool having two or more antenna groups spaced along a longitudinal axis of the logging tool, each antenna group having one antenna or multiple antennas proximally located or collocated, each antenna group having at least one tilted antenna, at least one antenna group having, in addition to the tilted antenna, at least one transverse or axial antenna, and any given pair of antenna groups comprising at least four antennas is disclosed. The logging tool is disposed in a wellbore penetrating a formation and, while rotating, measures a tool rotation angle, transmits an electromagnetic signal from one antenna group, and receives the electromagnetic signal with another antenna group. Elements of an electromagnetic coupling tensor are determined using the received electromagnetic signal and the measured tool rotation angle, and properties of the formation using one or more elements of the determined electromagnetic coupling tensor are inferred.
摘要翻译： 一种井下电磁测井工具，具有沿着测井工具的纵向轴线间隔开的两个或多个天线组，每个天线组具有一个天线或近端定位或并置的多个天线，每个天线组具有至少一个倾斜天线，至少一个天线组 除了倾斜天线之外，还具有至少一个横向或轴向天线，并且公开了包括至少四个天线的任何给定的一对天线组。 测井工具设置在穿透地层的井眼中，并且在旋转的同时测量工具旋转角度，从一个天线组发射电磁信号，并且接收另一个天线组的电磁信号。 使用所接收的电磁信号和测量的工具旋转角来确定电磁耦合张量的元件，并且推断使用所确定的电磁耦合张量的一个或多个元件的地层的性质。
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