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    Method and system for stick-slip mitigation
    2.
    发明授权
    Method and system for stick-slip mitigation 有权

    公开(公告)号：US10995605B2

    公开(公告)日：2021-05-04

    申请号：US16407345

    申请日：2019-05-09

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Zhijie Sun ,  Qiuying Gu

    IPC: E21B44/04 ,  E21B3/02 ,  E21B47/18

    Abstract: A method and system for dampening a stick-slip vibration. The method may comprise determining at least one frequency of a stick-slip vibration; determining mechanical properties of the drilling system; producing a torque signal from a controller having at least a second order; controlling a rotational speed of a top drive from the torque signal produced by the controller; and damping stick-slip vibration of the drilling system. The system may further comprise a drill string and a bottom hole assembly may be connected to the drill string. A drill bit may be connected to the bottom hole assembly and an information handling system may be connected to the drilling system.

    Mud sag monitoring and control
    3.
    发明授权
    Mud sag monitoring and control 有权

    公开(公告)号：US10400549B2

    公开(公告)日：2019-09-03

    申请号：US15323830

    申请日：2016-07-13

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Jason D. Dykstra ,  Qiuying Gu ,  Yuzhen Xue

    IPC: E21B21/08 ,  E21B44/00 ,  E21B41/00 ,  E21B21/00 ,  E21B47/10 ,  E21B21/01 ,  E21B21/06

    Abstract: A mud sag monitoring system may be configured for real-time evaluation of sagging potential of a circulating mud. The monitoring system may include both physics-based sagging prediction models and data-driven sagging detection classifiers that allow for predicting the sagging potential. The sagging potential may also be quantified with a sagging severity index and associated with a specific location within the mud circulation system. The sagging severity and location predictions may provide a framework for mitigation of mud sagging using automatic control techniques.

    Structure for fluid flowback control decision making and optimization
    5.
    发明授权
    Structure for fluid flowback control decision making and optimization 有权

    公开(公告)号：US10941642B2

    公开(公告)日：2021-03-09

    申请号：US15577380

    申请日：2015-07-17

    Applicant: Halliburton Energy Services, Inc.

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

    IPC: G06G7/48 ,  E21B43/267 ,  G06F30/20 ,  E21B49/00

    Abstract: Methods and systems are presented in this disclosure for evaluating whether to apply fluid flowback during a fracture closure stage of a hydraulic fracturing operation of a reservoir formation. Information collected prior to the fracture closure stage of the hydraulic fracturing operation can be first gathered. Based on the collected information, it can be determined whether to perform fluid flowback during the fracture closure stage following a treatment stage of the fracturing operation. Based on the determination, a rate of the fluid flowback can be adjusted and optimized in real-time during the fracture closure stage.

    Real-time control of diverters
    9.
    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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