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    RESISTIVITY DETERMINATION FROM ONE TRANSMITTER AND ONE RECEIVER ANTENNAS
    71.
    发明申请
    RESISTIVITY DETERMINATION FROM ONE TRANSMITTER AND ONE RECEIVER ANTENNAS 有权

    公开(公告)号：US20220397695A1

    公开(公告)日：2022-12-15

    申请号：US17806643

    申请日：2022-06-13

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Jin Ma ,  Clint Lozinsky ,  Hsu-Hsiang Wu ,  Yi Jing Fan

    IPC: G01V3/30 ,  G01V3/28 ,  E21B47/13

    Abstract: A system and a method for evaluating a subterranean earth formation include a logging tool locatable in a wellbore dispose in the formation. The logging tool may include a transmitter antenna and a single receiver antenna. The transmitter antenna is configured to transmit a first electromagnetic signal into the subterranean earth formation. The system further includes a processor and a non-transitory memory device. The memory device includes instructions that cause the processor to control a current and a voltage sourced to the transmitter antenna, receive, via the single receiver antenna, a second electromagnetic signal emitted by the subterranean earth formation in response to receiving the first electromagnetic signal, and determine a resistivity of the subterranean earth formation based on the second electromagnetic signal.

    Correction method for end-of-pipe effect on magnetic ranging
    73.
    发明授权
    Correction method for end-of-pipe effect on magnetic ranging 有权

    公开(公告)号：US11346208B2

    公开(公告)日：2022-05-31

    申请号：US16651538

    申请日：2017-12-21

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Yijing Fan ,  Burkay Donderici ,  Hsu-Hsiang Wu ,  Li Pan

    IPC: E21B47/0228 ,  E21B47/092

    Abstract: A method and system for electromagnetic ranging of a target wellbore. A method may comprise disposing an electromagnetic ranging tool in a wellbore, energizing a conductive member disposed in the target wellbore to create an electromagnetic field, measuring at least one component of the electromagnetic field from the target wellbore, performing at least two non-axial magnetic field measurements, performing at least one axial magnetic field measurement, calculating a processed non-axial magnetic field measurement using the at least two non-axial magnetic field measurements, calculating an end-of-pipe ratio with the processed non-axial magnetic field measurement and the at least one axial magnetic field measurement, and altering a course of the electromagnetic ranging tool based at least in part from the end-of-pipe ratio. A well ranging system may comprise a downhole assembly, a sensor comprising a first component and a second component, a drill string, and an information handling system.

    Downhole ranging using spatially continuous constraints
    74.
    发明授权
    Downhole ranging using spatially continuous constraints 有权

    公开(公告)号：US11320560B2

    公开(公告)日：2022-05-03

    申请号：US15775569

    申请日：2017-06-08

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Glenn Andrew Wilson ,  Hsu-Hsiang Wu

    IPC: G01V3/34 ,  E21B47/0228 ,  G01V3/30

    Abstract: A ranging system using spatially continuous filtering techniques to constrain ranging measurements, thereby improving ranging calculations between a bottom-hole-assembly and at least one target well. By taking advantage of the spatial continuity of the wellbore geometry, a quality check of a ranging measurement is performed using ranging measurements acquired at prior depths. Thus, the methods described herein provide improved ranging and direction estimates, as well as prediction of ranging and direction of the target well ahead of the bottom-hole-assembly.

    Multi-Step Inversion Using Electromagnetic Measurements
    76.
    发明申请
    Multi-Step Inversion Using Electromagnetic Measurements 有权

    公开(公告)号：US20210356621A1

    公开(公告)日：2021-11-18

    申请号：US16474239

    申请日：2018-08-21

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Hsu-Hsiang Wu ,  Weixin Dong

    IPC: G01V3/38 ,  G01V3/26 ,  G01V99/00 ,  G06N20/00

    Abstract: A subterranean earth formation is evaluated by running a process with a logging tool residing in a borehole in the earth formation to collect shallow measurements of a property of the formation and deep measurements of the property of the formation. An inversion is performed on the shallow measurements to produce a group of possible formation models that fit the shallow measurements. A machine-learning algorithm is applied to estimate the shallow formation structure, using the group of possible formation models that fit the shallow measurements, to produce a shallow formation structure. An inversion is performed on the deep measurements to produce a group of possible formation models that fit the deep measurements. The shallow formation structure is expanded using the group of possible formation models that fit the deep measurements to produce a deep formation structure.

    Look-ahead resistivity configuration
    77.
    发明授权
    Look-ahead resistivity configuration 有权

    公开(公告)号：US11174727B2

    公开(公告)日：2021-11-16

    申请号：US16606696

    申请日：2018-11-27

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Michael S. Bittar ,  Hsu-Hsiang Wu

    IPC: E21B49/00 ,  E21B7/04 ,  E21B44/00 ,  G01V3/30 ,  G01V3/38 ,  G01V11/00

    Abstract: A system and a method for a look-ahead drill bit. The system may comprise an ultra-deep transmitter operable to transmit a low frequency signal into a formation, a shallow tool operable to transmit a high frequency signal into the formation, at least one ultra-deep receiver operable to record a reflected low frequency signal, and at least one pair of collocated receivers, wherein the at least one pair of collocated receivers are operable to record a reflected high frequency signal. A method may comprise transmitting a high frequency signal from the shallow tool into the formation, transmitting a low frequency signal from the ultra-deep transmitter into the formation, evaluating the reflected high frequency signal and the reflected low frequency signal on an information handling system with a look-ahead inversion, and steering the bottom hole assembly in the formation based on the subterranean formation property.

    Antenna shields for co-located antennas
    78.
    发明授权
    Antenna shields for co-located antennas 有权

    公开(公告)号：US11125902B2

    公开(公告)日：2021-09-21

    申请号：US16484068

    申请日：2018-09-14

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Jin Ma ,  Hsu-Hsiang Wu ,  Michael Bittar

    IPC: G01V3/20 ,  H01Q1/04 ,  H01Q7/00

    Abstract: A logging tool includes a mandrel having a tool axis, a first loop antenna including first windings wrapped about the mandrel, a second loop antenna co-located with the first loop antenna and including second windings wrapped about the mandrel, and a shield secured to the mandrel. The first loop antenna is in a first orientation and the first windings are wrapped at a first angle. The second loop antenna is in a second orientation opposite the first orientation and the second windings are wrapped at a second angle. The shield includes first slots overlapping and along the first loop antenna and second slots overlapping and along the second loop antenna. The first slots define a first trace angle with respect to the tool axis and different from the first angle. The second slots defines a second trace angle with respect to the tool axis and different from the first angle.

    In-situ gain/phase calibration and characterization of downhole receiver electronics
    79.
    发明授权
    In-situ gain/phase calibration and characterization of downhole receiver electronics 有权

    公开(公告)号：US11061162B2

    公开(公告)日：2021-07-13

    申请号：US16316597

    申请日：2016-10-28

    Applicant: HALLIBURTON ENERGY SERVICES, INC.

    Inventor： Matthew Chase Griffing ,  Imran Sharif Vehra ,  Hsu-Hsiang Wu

    IPC: G01V3/30 ,  E21B49/00 ,  G01V13/00 ,  E21B47/125

    Abstract: A logging tool and a method for in-situ, independent calibration of receiver amplifier electronics separately from transmitter electronics. A logging tool can perform in-situ gain and phase calibration on one or more receiver assemblies, each consisting of at least a receiver amplifier electronics and a receiver antenna, and based on a calculated gain and phase of the receiver assembly, determine the true antenna amplitude and phase associated with a measurement made by the receiver assembly. The logging tool can perform in-situ crosstalk measurement and calibration, by determining a crosstalk matrix for all of the receiver assemblies and for each receiver assembly, removing the crosstalk interference from the measurement made by the receiver assembly.

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