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    Filtering microseismic events for updating and calibrating a fracture model
    1.
    发明授权
    Filtering microseismic events for updating and calibrating a fracture model 有权

    公开(公告)号：US10408955B2

    公开(公告)日：2019-09-10

    申请号：US15519924

    申请日：2014-11-19

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Jason D. Dykstra ,  Zhijie Sun

    IPC: G06G7/48 ,  G01V1/28 ,  E21B43/26 ,  E21B47/12 ,  G01V1/50

    Abstract: A fracture model for a hydraulic fracture in a wellbore can be updated and calibrated. Information about a microseismic event can be received from a sensor that is monitoring a subterranean formation. The information can be received subsequent to a fracking fluid being introduced into the formation. An observed geometry of a hydraulic fracture can be determined based on the information and a predicted geometry of the fracture can be determined based on properties of the fracking fluid and a fracture model. The fracture model can be updated using the information about the microseismic event where it is determined that an uncertainty value of the observed geometry does not exceed a pre-set maximum. The uncertainty value can be based on the predicted geometry of the hydraulic fracture.

    Microseismic monitoring sensor uncertainty reduction
    2.
    发明授权
    Microseismic monitoring sensor uncertainty reduction 有权

    公开(公告)号：US10338247B2

    公开(公告)日：2019-07-02

    申请号：US15525336

    申请日：2014-12-23

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Jason D. Dykstra ,  Zhijie Sun

    IPC: G01V1/28 ,  G01V1/42

    Abstract: Uncertainty in microseismic monitoring sensor data can be reduced. A computing device can receive information about at least one sensor that is monitoring a subterranean formation, including a location, after a fracturing fluid is introduced into the formation. The computing device can also receive information about a microseismic event and determine a seismic ray bath between a location of the event and the at least one sensor, and an uncertainty value of the location based on information about the formation and the information about the event. The computing device can determine a total uncertainty value associated with the locations of a plurality of microseismic events, including the microseismic event. The computing device can determine a solution to an objective function based on the total uncertainty value and a number of sensors. The computing device can determine a new location of the at least one sensor based on the solution.

    System and method for mitigating stick-slip
    6.
    发明授权
    System and method for mitigating stick-slip 有权

    公开(公告)号：US11952883B2

    公开(公告)日：2024-04-09

    申请号：US16822944

    申请日：2020-03-18

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Zhijie Sun ,  Sujian Huang

    IPC: E21B44/04 ,  E21B3/035 ,  E21B44/00 ,  E21B47/024 ,  G05D19/02

    CPC classification number: E21B44/04 ,  E21B3/035 ,  E21B47/024 ,  G05D19/02 ,  E21B44/005

    Abstract: A method for drilling a well. The method may include detecting stick-slip vibrations at a frequency via a downhole sensor. The method may further include determining a reflection coefficient of a drill bit for the frequency based on at least one of a rotational speed of the drill bit or a torque of the drill bit. The method may also include determining a reflection coefficient of a top drive for the frequency based on at least one of a rotational speed of the top drive or a torque produced by the top drive. The method may further include adjusting a control system in electronic communication with the top drive based on the reflection coefficient of the drill bit for the frequency and the reflection coefficient of the top drive for the frequency.

    MONITORING DRILLING VIBRATIONS BASED ON ROTATIONAL SPEED
    7.
    发明申请
    MONITORING DRILLING VIBRATIONS BASED ON ROTATIONAL SPEED 有权

    公开(公告)号：US20230010614A1

    公开(公告)日：2023-01-12

    申请号：US17369597

    申请日：2021-07-07

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Zhijie Sun ,  Ketan C. Bhaidasna ,  Ganesh Ramakrishnan

    IPC: E21B44/04

    Abstract: The disclosure provides a solution for monitoring stick-slip vibrations without using any surface torque measurements. Instead, the disclosure provides a method to monitor stick-slip vibrations based on rotational speed. A stick-slip monitor, a top drive controller and a method of operating a drill string are provided herein that use rotational speed for monitoring stick-slip vibrations. In one example, the method of operating a drill string includes: (1) performing a frequency domain analysis of an RPM signal associated with a top drive that is used to rotate a drill string, and (2) determining a presence of torsional oscillations of the drill string based on the frequency domain analysis of the RPM signal.

    Real-time control of diverters
    8.
    发明授权
    Real-time control of diverters 有权

    公开(公告)号：US10590747B2

    公开(公告)日：2020-03-17

    申请号：US15753644

    申请日：2015-09-21

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Zhijie Sun ,  Jason D. Dykstra ,  Qiuying Gu

    IPC: E21B41/00 ,  E21B43/26 ,  C09K8/62 ,  G01V1/22 ,  G01V1/50

    Abstract: In some aspects, the present disclosure includes systems and methods for determining and delivering diverting material to dominant fractures in a stage of a subterranean formation. The method includes creating or extending a plurality of fractures in a stage of a subterranean formation; pumping fracturing fluid to the plurality of fractures; identifying dominant fractures among the plurality of fractures; determining a desired amount of diverters to deliver to the dominant fractures; and pumping the determined amount of diverters to the dominant fractures so as to redistribute the flow of fracturing fluid between the plurality of fractures.

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