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公开(公告)号：US20210405240A1
公开(公告)日：2021-12-30
申请号：US16645465
申请日：2019-05-15
发明人： Jin MA
摘要： Data filtering and processing techniques for generating improved wellbore resistivity maps are contemplated. In some aspects, a process of the disclosed technology includes steps for receiving a plurality of measurement sets, wherein each measurement set includes electromagnetic field data associated with a geologic formation, performing an inversion on each of the plurality of measurement sets to generate a corresponding plurality of formation profiles, and applying a filter to each of the formation profiles to generate a plurality of profile clusters. In some aspects, the process can further include steps for selecting a representative cluster from among the profile clusters for use in generating a wellbore resistivity map. Systems and machine-readable media are also provided.
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公开(公告)号：US20200212576A1
公开(公告)日：2020-07-02
申请号：US16355302
申请日：2019-03-15
发明人： Jin MA , Alexei KOROVIN
摘要： A triad antenna shield includes a housing positionable radially external to three loop antennas of a resistivity logging tool in a wellbore. The housing defines three slot sets each corresponding to a respective one of the loop antennas to overlap at least a portion of the respective loop antenna. At least one slot of each slot set is perpendicular to a trace angle with respect to a longitudinal axis. Further, each slot set extends around a circumference of the triad antenna shield and through a first layer of the housing.
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公开(公告)号：US20210208302A1
公开(公告)日：2021-07-08
申请号：US16734029
申请日：2020-01-03
发明人： Jin MA , Clint P. LOZINSKY , Nigel Mark CLEGG
摘要： Data filtering and processing techniques for generating improved wellbore resistivity displays are contemplated. In some aspects, a process of the disclosed technology includes steps for receiving a first measurement set comprising electromagnetic field data for a first tool depth in a geologic formation, receiving a second measurement set comprising electromagnetic field data for a second tool depth in the geologic formation, performing an inversion on the first measurement set and the second measurement set to generate a first formation profile and a second formation profile, and displaying the first formation profile and the second formation profile in a user interface (UI). Systems and machine-readable media are also provided.
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公开(公告)号：US20170299760A1
公开(公告)日：2017-10-19
申请号：US15513961
申请日：2015-10-20
发明人： Jin MA , Glenn Andrew WILSON , Burkay Donderici
摘要： An antenna assembly includes a tool mandrel having a tool axis, and a coil including a plurality of windings wrapped about the tool mandrel at a winding angle offset from the tool axis. A soft magnetic band radially interposes the coil and the tool mandrel and extends about a circumference of the tool mandrel at a band angle orthogonal to the winding angle. The soft magnetic band includes a plurality of inserts, and a gap is defined between each laterally adjacent insert and the gap extends parallel to the tool axis.
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公开(公告)号：US20170298724A1
公开(公告)日：2017-10-19
申请号：US15516722
申请日：2014-12-29
发明人： Jin MA , Glenn Andrew WILSON , Iftikhar AHMED , Li PAN
IPC分类号： E21B47/12 , E21B47/024 , E21B49/00 , E21B4/02
摘要： A communication system for use in a wellbore can include a first cylindrically shaped band that can be positioned around a first outer housing of a first subsystem of a well tool. The first cylindrically shaped band can be operable to electromagnetically couple with a second cylindrically shaped band. The second cylindrically shaped band can be positioned around a second outer housing of a second subsystem of the well tool. The first cylindrically shaped band can electromagnetically couple with the second cylindrically shaped band via an electromagnetic field or by transmitting a current to the second cylindrically shaped band through a fluid in the wellbore.
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公开(公告)号：US20200240261A1
公开(公告)日：2020-07-30
申请号：US16644137
申请日：2018-10-15
发明人： Hsu-Hsiang WU , Weixin DONG , Jin MA , Christopher GOLLA
摘要： A method and system for detecting a conductive member in a formation. The method may comprise disposing an electromagnetic induction tool into a wellbore, transmitting the electromagnetic field from the at least one electromagnetic source, energizing the conductive member in a second wellbore, wherein an eddy current is induced in the conductive member, transmitting a second electromagnetic field from the conductive member, wherein the second electromagnetic field is formed by the eddy current, sensing the second electromagnetic field with the receiver, recording an amplitude of the second electromagnetic field as data, and transmitting the data to an information handling system. A system for detecting a conductive member in a formation may comprise an electromagnetic induction tool. The electromagnetic induction tool may comprise at least one electromagnetic source and at least one receiver. The system may further comprise an information handling system.
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公开(公告)号：US20190093470A1
公开(公告)日：2019-03-28
申请号：US16200898
申请日：2018-11-27
发明人： Jin MA , Rencheng SONG , Glenn Andrew WILSON
摘要： Systems and methods for optimized geosteering using real-time geological models that are updated with LWD measurements containing data such as, for example, layer boundaries and formation properties.
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