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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.

    Method to optimize oilfield operations based on large and complex data sets
    6.
    发明授权
    Method to optimize oilfield operations based on large and complex data sets 有权

    公开(公告)号：US10934813B2

    公开(公告)日：2021-03-02

    申请号：US15541607

    申请日：2015-03-05

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Jason D. Dykstra ,  Zhijie Sun ,  Yuzhen Xue

    IPC: E21B41/00 ,  E21B44/00 ,  E21B44/06 ,  G05B19/04

    Abstract: In some aspects, the present invention comprises a system and method for optimizing the control scheme used for drilling operations based on the complex and large data sets available in realtime during operation of a wellsite and based on existing model data available at the wellsite for past similar drilling operations. Such optimizations typically require downtime to quantify how the realtime values will factor into the control model, but the present invention allows for such optimization in realtime in a closed-loop system that will reduce the non-productive time associated with reservoir operations.

    Optimizing running operations
    9.
    发明授权
    Optimizing running operations 有权

    公开(公告)号：US10301913B2

    公开(公告)日：2019-05-28

    申请号：US15328834

    申请日：2014-12-31

    Applicant: HALLIBURTON ENERGY SERVICES, INC.

    Inventor： Jason D. Dykstra ,  Zhijie Sun

    IPC: E21B41/00 ,  E21B47/00 ,  E21B19/00 ,  E21B44/00

    Abstract: A system for optimizing a running operation includes an interface to equipment and sensors for performing the running operation. The interface supplies control signals to the equipment and obtains measurement signals from the sensors. The system further includes a short-term optimizer that derives a current job state based at least in part on the measurement signals, and that further adjusts the control signals to optimize a short-term cost function. The short-term cost function includes a difference between the current job state and a desired job state derived from optimized values of a set of decision variables. The system further includes a long-term optimizer module that determines the optimized values based on a long-term cost function, the long-term cost function accounting for at least a long-term reward and a final state cost.

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