公开(公告)号：US20170067335A1

公开(公告)日：2017-03-09

申请号：US15119625

申请日：2015-02-18

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Xiaowei Weng ,  Pierre Ramondenc

IPC: E21B47/06 ,  E21B43/25 ,  G01K11/32 ,  E21B47/10

Abstract: An embodiment for determining a flow distribution of a wellbore during a wellbore treatment comprises disposing an optical fiber into a wellbore, performing a wellbore treatment in the wellbore with the fiber optic in place by flowing a well treatment fluid from the surface and wellbore and into the formation, taking distributed temperature measurements at a time interval with the fiber optic cable during the wellbore treatment operation, and calculating a flow distribution of the wellbore while performing the wellbore treatment.

Abstract translation: 在井筒处理期间用于确定井眼的流量分布的实施例包括将光纤设置到井眼中，通过使井处理流体从表面和井眼流动并进入井眼中，在井眼中进行井眼处理，其中光纤就位 形成，在井眼处理操作期间以与光纤电缆的时间间隔进行分布式温度测量，以及在执行井眼处理时计算井筒的流量分布。

公开(公告)号：US20160265331A1

公开(公告)日：2016-09-15

申请号：US15034927

申请日：2014-11-06

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Xiaowei Weng ,  Olga Kresse

IPC: E21B43/267 ,  G06F17/50 ,  E21B49/00 ,  E21B43/26 ,  E21B41/00

CPC classification number: E21B43/267 ,  E21B43/26 ,  G06F17/5009

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 at different depths, and repeating the generating based on the determined stress interference. The methods may also involve determining crossing behavior.

Abstract translation: 提供了在具有断裂网络的井场进行断裂操作的方法。 该方法包括获得井场数据和机械地球模型，并随着时间的推移产生骨折网络的水力压裂生长模式。 该产生涉及将水力裂缝从井筒延伸到地层断裂网络中以形成水力断裂网络，确定延伸后的水力断裂参数，确定通过水力裂缝网络的支撑剂的输送参数，以及确定断裂尺寸 水力压裂从水力压裂参数，运输参数和机械地球模型。 这些方法还涉及对水力裂缝进行应力遮蔽，以确定不同深度的裂缝之间的应力干扰，并根据确定的应力干扰重复产生。 所述方法还可以涉及确定交叉行为。

公开(公告)号：US20160123117A1

公开(公告)日：2016-05-05

申请号：US14530632

申请日：2014-10-31

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Hongren Gu ,  Xiaowei Weng ,  Olga Kresse ,  Bruno Lecerf

IPC: E21B41/00 ,  E21B47/06 ,  E21B43/26

CPC classification number: E21B47/065 ,  C09K8/60 ,  E21B43/26

Abstract: In one aspect, a method of optimizing a sequenced hydraulic fracturing treatment to be performed on a well includes predicting, based on a well model of the well and a hydraulic fracturing treatment schedule, a seal state of a perforation cluster. The method may further include updating, based on the predicted seal state, a pilling operation of a stage of the hydraulic fracturing treatment schedule. The method may further include modifying the sequenced hydraulic fracturing treatment schedule to be performed based on the updated pilling operation. The well model includes a geomechanical model of the well and a geological formation.

Abstract translation: 在一个方面，优化在井上进行的顺序水力压裂处理的方法包括基于井的井模型和水力压裂处理进度来预测穿孔簇的密封状态。 该方法还可以包括基于预测的密封状态来更新水力压裂处理进度的阶段的起球操作。 该方法还可以包括基于更新的起球操作来修改要执行的有序的水力压裂处理计划。 井模型包括井的地质力学模型和地质构造。

公开(公告)号：US20140222405A1

公开(公告)日：2014-08-07

申请号：US14101028

申请日：2013-12-09

Applicant: Schlumberger Technology Corporation

Inventor： Bruno Lecerf ,  Dmitriy Usoltsev ,  Timothy L. Pope ,  Alejandro Pena ,  Tarik Itibrout ,  Xiaowei Weng ,  Hitoshi Onda ,  Philippe Enkababian

IPC: G06G7/50

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。

公开(公告)号：US20140136173A1

公开(公告)日：2014-05-15

申请号：US13956471

申请日：2013-08-01

Applicant: Schlumberger Technology Corporation

Inventor： Xiaowei Weng ,  Edward Siebrits

IPC: G06G7/50

CPC classification number: E21B43/26 ,  E21B43/267 ,  G06G7/50 ,  G06G7/57

Abstract: A hydraulic fracture design model that simulates the complex physical process of fracture propagation in the earth driven by the injected fluid through a wellbore. An objective in the model is to adhere with the laws of physics governing the surface deformation of the created fracture subjected to the fluid pressure, the fluid flow in the gap formed by the opposing fracture surfaces, the propagation of the fracture front, the transport of the proppant in the fracture carried by the fluid, and the leakoff of the fracturing fluid into the permeable rock. The models used in accordance with methods of the invention are typically based on the assumptions and the mathematical equations for the conventional 2D or P3D models, and further take into account the network of jointed fracture segments. For each fracture segment, the mathematical equations governing the fracture deformation and fluid flow apply. For each time step, the model predicts the incremental growth of the branch tips and the pressure and flow rate distribution in the system by solving the governing equations and satisfying the boundary conditions at the fracture tips, wellbore and connected branch joints. An iterative technique is used to obtain the solution of this highly nonlinear and complex problem.

Abstract translation: 一种水力压裂设计模型，模拟通过井筒注入的流体驱动的地球中裂缝扩展的复杂物理过程。 该模型的目标是遵循物理学规律，对受到流体压力的产生的裂缝的表面变形进行控制，由相对的断裂面形成的间隙中的流体流动，裂缝前端的传播， 在流体中承载的裂缝中的支撑剂，以及压裂液体渗透到可渗透岩石中的泄漏。 根据本发明的方法使用的模型通常基于常规2D或P3D模型的假设和数学方程，并且还考虑到连接断裂段的网络。 对于每个裂缝段，控制断裂变形和流体流动的数学方程适用。 对于每个时间步长，该模型通过求解控制方程并满足裂缝尖端，井筒和连接分支接头处的边界条件来预测分支尖端的增量增长和系统的压力和流量分布。 使用迭代技术来获得这种高度非线性和复杂问题的解决方案。

公开(公告)号：US10794154B2

公开(公告)日：2020-10-06

申请号：US15750945

申请日：2016-08-05

Applicant: Schlumberger Technology Corporation

Inventor： Xiaowei Weng ,  Charles-Edouard Cohen ,  George Alan Waters

IPC: E21B43/26 ,  E21B47/024 ,  E21B47/12 ,  E21B29/00 ,  E21B41/00 ,  G01V1/28 ,  G01V11/00 ,  G01V1/30 ,  E21B43/11 ,  E21B43/267 ,  E21B47/10 ,  E21B49/00

Abstract: A method of performing a fracture operation at a wellsite is disclosed for a wellsite positioned about a subterranean formation having a wellbore therethrough and a fracture network therein. The fracture network includes natural fractures. The method involves generating wellsite parameters of the wellsite comprising seismic measurements, generating smooth fracture parameters of a smooth fracture by solving governing equations based on the wellsite parameters, and generating ledged fracture parameters of a ledged fracture by identifying ledge locations and generating ledged fracture parameters of a ledged fracture at the ledge locations by solving the governing equations based on the wellsite parameters for the ledge locations.

公开(公告)号：US10422208B2

公开(公告)日：2019-09-24

申请号：US14664362

申请日：2015-03-20

Applicant: Schlumberger Technology Corporation

Inventor： Xiaowei Weng ,  Charles-Edouard Cohen ,  Olga Kresse

IPC: E21B43/267 ,  E21B43/26 ,  G06F17/13 ,  G06F17/50

Abstract: A method involves generating a hydraulic fracture growth pattern for a fracture network. The generating involves representing hydraulic fractures as a vertically stacked elements, extending the represented hydraulic fractures laterally from the wellbore and into the formation to form a hydraulic fracture network by adding new elements to the vertically stacked elements over time, determining hydraulic fracture parameters of the represented hydraulic fractures, determining transport parameters for the proppant passing through the hydraulic fracture network, deriving an estimated fracture tip velocity from a pressure and a stress profile of the formation; extending a height of the vertically stacked elements and the new elements over time based on the derived velocity to form extended vertically stacked elements. If a zone property change is encountered, then generating another stack of the vertically stacked elements in the zones of property change by splitting at least a portion of the extended vertically stacked elements.

公开(公告)号：US10301918B2

公开(公告)日：2019-05-28

申请号：US15148512

申请日：2016-05-06

Applicant: Schlumberger Technology Corporation

Inventor： Xiaowei Weng ,  Eduard Siebrits

IPC: E21B43/26 ,  G06G7/57 ,  G06G7/50 ,  E21B43/267

Abstract: A hydraulic fracture design model that simulates the complex physical process of fracture propagation in the earth driven by the injected fluid through a wellbore. An objective in the model is to adhere with the laws of physics governing the surface deformation of the created fracture subjected to the fluid pressure, the fluid flow in the gap formed by the opposing fracture surfaces, the propagation of the fracture front, the transport of the proppant in the fracture carried by the fluid, and the leakoff of the fracturing fluid into the permeable rock. The models used in accordance with methods of the invention are typically based on the assumptions and the mathematical equations for the conventional 2D or P3D models, and further take into account the network of jointed fracture segments. For each fracture segment, the mathematical equations governing the fracture deformation and fluid flow apply. For each time step, the model predicts the incremental growth of the branch tips and the pressure and flow rate distribution in the system by solving the governing equations and satisfying the boundary conditions at the fracture tips, wellbore and connected branch joints. An iterative technique is used to obtain the solution of this highly nonlinear and complex problem.

公开(公告)号：US20160357883A1

公开(公告)日：2016-12-08

申请号：US14664362

申请日：2015-03-20

Applicant: Schlumberger Technology Corporation

Inventor： Xiaowei Weng ,  Charles-Edouard Cohen ,  Olga Kresse

IPC: G06F17/50 ,  E21B43/267 ,  G06F17/13 ,  E21B43/26

Abstract: A method involves generating a hydraulic fracture growth pattern for a fracture network. The generating involves representing hydraulic fractures as a vertically stacked elements, extending the represented hydraulic fractures laterally from the wellbore and into the formation to form a hydraulic fracture network by adding new elements to the vertically stacked elements over time, determining hydraulic fracture parameters of the represented hydraulic fractures, determining transport parameters for the proppant passing through the hydraulic fracture network, deriving an estimated fracture tip velocity from a pressure and a stress profile of the formation; extending a height of the vertically stacked elements and the new elements over time based on the derived velocity to form extended vertically stacked elements. If a zone property change is encountered, then generating another stack of the vertically stacked elements in the zones of property change by splitting at least a portion of the extended vertically stacked elements.

Abstract translation: 一种包括产生断裂网络的水力压裂生长模式的方法。 该产生涉及将水力裂缝表示为垂直堆叠的元件，将所示出的水力裂缝从井眼横向延伸并进入地层，以通过随时间向垂直堆叠的元件添加新的元素来形成水力断裂网络，确定所代表的水力裂缝参数 确定支撑剂通过水力断裂网络的运输参数，从地层的压力和应力分布得出估计的断裂尖端速度; 基于所得到的速度，随着时间的推移垂直堆叠的元件和新元件的高度延伸以形成延伸的垂直堆叠的元件。 如果遇到区域属性变化，则通过拆分扩展的垂直堆叠元件的至少一部分，在属性区域中生成垂直堆叠元件的另一堆叠改变。

公开(公告)号：US20160047207A1

公开(公告)日：2016-02-18

申请号：US14819659

申请日：2015-08-06

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Bruno Lecerf ,  Dmitriy Usoltsev ,  Timothy L. Pope ,  Alejandro Pena ,  Tarik Itibrout ,  Xiaowei Weng ,  Hitoshi Onda ,  Philippe Enkababian

IPC: E21B43/00

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。