System and method for performing stimulation operations

    公开(公告)号:US10605060B2

    公开(公告)日:2020-03-31

    申请号:US14350533

    申请日:2012-10-11

    Abstract: A system and method is provided for performing stimulation operations at a wellsite having a subterranean formation with a reservoir therein. The method involves acquiring integrated wellsite data (e.g., geomechanical, geological, and/or geophysical properties of the formation, and/or geometrical properties of the mechanical discontinuities in the formation). The method also involves generating a mechanical earth model using the integrated wellsite data, and identifying a crossing behavior between an induced hydraulic fracture and at least one discontinuity in the formation. The method also involves optimizing a stimulation plan to achieve an optimized crossing behavior. The stimulation plan includes at least one of fluid viscosity, rate of injection of the fracturing fluid, and concentration of a fluid loss additive. The optimization may further include adjusting the stimulation plan to achieve the optimized crossing behavior between the induced hydraulic fracture and the discontinuity in the formation.

    System and method for performing downhole stimulation operations

    公开(公告)号:US10563493B2

    公开(公告)日:2020-02-18

    申请号:US14987073

    申请日:2016-01-04

    Abstract: A system and method for performing stimulation operations at a wellsite having a subterranean formation with of a reservoir therein is provided. The method involves performing reservoir characterization to generate a mechanical earth model based on integrated petrophysical, geomechanical and geophysical data. The method also involves generating a stimulation plan by performing well planning, a staging design, a stimulation design and a production prediction based on the mechanical earth model. The stimulation design is optimized by repeating the well planning, staging design, stimulation design, and production prediction in a feedback loop until an optimized stimulation plan is generated.

    METHOD OF CALIBRATING FRACTURE GEOMETRY TO MICROSEISMIC EVENTS
    14.
    发明申请
    METHOD OF CALIBRATING FRACTURE GEOMETRY TO MICROSEISMIC EVENTS 审中-公开
    将断裂几何校准到微观事件的方法

    公开(公告)号:US20160108705A1

    公开(公告)日:2016-04-21

    申请号:US14896685

    申请日:2014-07-02

    CPC classification number: E21B43/267

    Abstract: A method of performing a fracture operation is provided at a wellsite. The wellsite is positioned about a subterranean formation having a wellbore therethrough and a complex fracture network therein. The complex fracture network includes natural fractures, and the wellsite stimulated by injection of an injection fluid with proppant into the complex fracture network. The method involves generating wellsite data comprising measurements of microseismic events of the subterranean formation, modeling a hydraulic fracture network and a discrete fracture network of the complex fracture network based on the wellsite data, and performing a seismic moment operation. The method involves determining an actual seismic moment density based on the wellsite data and a predicted seismic moment density based on shear and tensile components of the simulated hydraulic fracture network, and calibrating the discrete fracture network based on a comparison of the predicted moment density and the actual moment density.

    Abstract translation: 在井场处提供进行断裂操作的方法。 井场位于具有穿过其中的井眼的地下地层和其中的复杂裂缝网络。 复合骨折网络包括天然骨折,以及通过将注射液与支撑剂注射入复合骨折网络而刺激的井场。 该方法包括产生井场数据,其包括基于井场数据的地下地层的微震事件的测量,模拟水力裂缝网络和复杂断裂网络的离散裂缝网络,以及执行地震矩操作。 该方法包括基于井场数据和基于模拟水力断裂网络的剪切和拉伸分量的预测地震矩密度确定实际地震矩密度,并且基于预测力矩密度和 实际力矩密度。

    System and method for performing downhole stimulation operations
    15.
    发明授权
    System and method for performing downhole stimulation operations 有权
    进行井下刺激作业的系统和方法

    公开(公告)号:US09135475B2

    公开(公告)日:2015-09-15

    申请号:US14101028

    申请日:2013-12-09

    CPC classification number: E21B43/00 E21B43/17 E21B43/26 G06G7/50

    Abstract: A system and method for performing stimulation operations at a wellsite having a subterranean formation with of a reservoir therein is provided. The method involves generating a plurality of quality indicators from a plurality of logs, and combining the plurality of quality indicators to form a composite quality indicator. The plurality of stress blocks may then be merged using diversion criterion. The composite quality indicator may be combined with the merged stress blocks to form a combined stress and composite quality indicator, the combined stress and composite quality indicator comprising a plurality of blocks with boundaries therebetween. The method may further comprise defining stages along the combined stress and composite quality indicator based on the diverter-assisted stage classifications; and selectively positioning perforations in select stages based on the diverter-assisted stage classifications thereon.

    Abstract translation: 提供了一种用于在具有其中具有储存器的地层的井场处进行刺激操作的系统和方法。 该方法包括从多个日志生成多个质量指示符,并且组合多个质量指示符以形成复合质量指示符。 然后可以使用转移标准来合并多个应力块。 复合质量指示器可以与合并的应力块组合以形成组合的应力和复合质量指示器,所述组合应力和复合质量指示符包括具有边界的多个块。 该方法可以进一步包括基于转向器辅助级分类沿着组合的应力和复合质量指示器定义阶段; 并且基于其上的转向器辅助级分类,在选择级中选择性地定位穿孔。

    SYSTEM AND METHOD FOR PERFORMING OPTIMIZED DOWNHOLE STIMULATION OPERATIONS
    16.
    发明申请
    SYSTEM AND METHOD FOR PERFORMING OPTIMIZED DOWNHOLE STIMULATION OPERATIONS 审中-公开
    用于执行优化的卧室刺激操作的系统和方法

    公开(公告)号:US20130140031A1

    公开(公告)日:2013-06-06

    申请号:US13752505

    申请日:2013-01-29

    CPC classification number: E21B43/26

    Abstract: A method of performing a stimulation operation for an unconventional wellsite having natural fractures and hydraulic fractures. The method involves providing at least one treatment parameter with a corresponding objective function value and performing a fracture operation based on the treatment parameter. The fracture operation involves defining a treatment schedule, conducting a hydraulic fracture operation, and estimating production. The objective function value is based on an objective function. The method also involves modifying the treatment parameter and performing the fracture operation based on the modified treatment parameter. The modified treatment parameter has a corresponding modified objective function value based on the objective function. The method continues with optimizing the treatment operation by comparing the objective function value with the modified objective function value, and repeating the modifying and optimizing for new modified treatment parameters until convergence about a desired outcome whereby an optimized parameter is defined at convergence.

    Abstract translation: 对具有天然裂缝和水力裂缝的非常规井场进行刺激操作的方法。 该方法包括提供具有相应的目标函数值的至少一个治疗参数并且基于治疗参数执行骨折手术。 骨折手术包括定义治疗方案,进行水力压裂手术和估算生产。 目标函数值基于目标函数。 该方法还涉及修改治疗参数,并根据经修改的治疗参数进行骨折手术。 改进的处理参数具有基于目标函数的相应修正的目标函数值。 该方法继续通过将目标函数值与修正的目标函数值进行比较来优化治疗操作,并重复修改和优化新的修改的治疗参数,直到关于期望结果的收敛,从而在收敛时定义优化的参数。

    Method of performing wellsite fracture operations with statistical uncertainties

    公开(公告)号:US10760416B2

    公开(公告)日:2020-09-01

    申请号:US15546860

    申请日:2015-12-15

    Abstract: A method of performing a fracture operation at a wellsite is provided. The wellsite has a fracture network therein with natural fractures. The method involves stimulating the wellsite by injecting an injection fluid with proppant into the fracture network, obtaining wellsite data comprising natural fracture parameters of the natural fractures and obtaining a mechanical earth model of the subterranean formation, defining the natural fractures based on the wellsite data by generating one or more realizations of the natural fracture data based on a statistical distribution of natural fracture parameters, meters, generating a statistical distribution of predicted fluid production by generating a hydraulic fracture growth pattern for the fracture network over time based on each defined realization and predicting fluid production from the formation based on the defined realizations, selecting a reference production from the generated statistical distribution, and optimizing production and uncertainty by adjusting the stimulating operations based on the selecting.

    Modeling of interaction of hydraulic fractures in complex fracture networks

    公开(公告)号:US10544667B2

    公开(公告)日:2020-01-28

    申请号:US14356369

    申请日:2012-11-02

    Abstract: Methods of performing a fracture operation at a wellsite with a fracture network are provided. The methods involve obtaining wellsite data and a mechanical earth model, and generating a hydraulic fracture growth pattern for the fracture network over time. The generating involves extending hydraulic fractures from a wellbore and into the fracture network of a subterranean formation to form a hydraulic fracture network, determining hydraulic fracture parameters after the extending, determining transport parameters for proppant passing through the hydraulic fracture network, and determining fracture dimensions of the hydraulic fractures from the hydraulic fracture parameters, the transport parameters and the mechanical earth model. The methods also involve performing stress shadowing on the hydraulic fractures to determine stress interference between fractures and repeating the generating based on the determined stress interference. The methods may also involve determining crossing behavior.

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