公开(公告)号：US20130220619A1

公开(公告)日：2013-08-29

申请号：US13697466

申请日：2011-05-06

申请人： Yiyan Chen ,  Hongren Gu ,  Xiaowei Weng ,  Peter J. Photos ,  Mohan K.R. Panga

发明人： Yiyan Chen ,  Hongren Gu ,  Xiaowei Weng ,  Peter J. Photos ,  Mohan K.R. Panga

IPC分类号： C09K8/62 ,  E21B43/26

CPC分类号： C09K8/62 ,  C09K8/70 ,  C09K8/74 ,  C09K8/80 ,  E21B43/26 ,  E21B43/267

摘要： The invention discloses a method for use in a wellbore, comprising: providing a first fluid comprising at least a first type of particulate material having a first average particle size and a second type of particulate material having a second average particle size, wherein first average particle size is smaller than second average particle size; providing a second fluid comprising at least a third type of particulate material having a third average particle size and a fourth type of particulate material having a fourth average particle size, wherein third average particle size is smaller than fourth average particle size; and introducing the first fluid into the wellbore subsequently followed by introducing the second fluid into the wellbore, wherein the third average particle size is substantially equal to the second average particle size.

摘要翻译： 本发明公开了一种在井眼中使用的方法，包括：提供第一流体，其包含具有第一平均粒度的至少第一类型的颗粒材料和具有第二平均粒径的第二类型的颗粒材料，其中第一平均颗粒 尺寸小于第二平均粒径; 提供第二流体，其包含具有第三平均粒度的至少第三类型的颗粒材料和具有第四平均粒度的第四类型的颗粒材料，其中第三平均粒度小于第四平均粒度; 以及将所述第一流体引入所述井筒中，随后将所述第二流体引入所述井筒中，其中所述第三平均粒度基本上等于所述第二平均粒度。

公开(公告)号：US20130158959A1

公开(公告)日：2013-06-20

申请号：US13327965

申请日：2011-12-16

申请人： Hongren Gu ,  Yiyan Chen ,  Xiaowei Weng

发明人： Hongren Gu ,  Yiyan Chen ,  Xiaowei Weng

IPC分类号： G06G7/48 ,  G06F17/10

CPC分类号： E21B43/26 ,  G01V2210/646 ,  G01V2210/66

摘要： An example apparatus includes a formation description module that interprets a formation description corresponding to a formation of interest, a fluid description module that interprets a high solids content fluid (HSCF) description, and a fracture modeling module that models a fracturing operation in the formation of interest in response to the formation description and the HSCF description. The apparatus further includes a fracture results module that provides a fracture treatment description parameter in response to the model.

摘要翻译： 示例性设备包括：形成描述模块，其解释对应于感兴趣的形成的形成描述;解释高固体含量流体（HSCF）描述的流体描述模块;以及在形成 对形成描述和HSCF描述的回应有兴趣。 该设备还包括一个断裂结果模块，该模块提供了响应该模型的断裂处理描述参数。

公开(公告)号：US09085976B2

公开(公告)日：2015-07-21

申请号：US13327965

申请日：2011-12-16

申请人： Hongren Gu ,  Yiyan Chen ,  Xiaowei Weng

发明人： Hongren Gu ,  Yiyan Chen ,  Xiaowei Weng

IPC分类号： G06G7/48 ,  G06F7/60 ,  E21B43/26

CPC分类号： E21B43/26 ,  G01V2210/646 ,  G01V2210/66

摘要： An example apparatus includes a formation description module that interprets a formation description corresponding to a formation of interest, a fluid description module that interprets a high solids content fluid (HSCF) description, and a fracture modeling module that models a fracturing operation in the formation of interest in response to the formation description and the HSCF description. The apparatus further includes a fracture results module that provides a fracture treatment description parameter in response to the model.

摘要翻译： 示例性设备包括：形成描述模块，其解释对应于感兴趣的形成的形成描述;解释高固体含量流体（HSCF）描述的流体描述模块;以及在形成 对形成描述和HSCF描述的回应有兴趣。 该设备还包括一个断裂结果模块，该模块提供了响应该模型的断裂处理描述参数。

公开(公告)号：US08607870B2

公开(公告)日：2013-12-17

申请号：US12950226

申请日：2010-11-19

申请人： Hongren Gu ,  Yiyan Chen ,  Xiaowei Weng

发明人： Hongren Gu ,  Yiyan Chen ,  Xiaowei Weng

IPC分类号： E21B43/26 ,  E21B43/267

CPC分类号： E21B43/267 ,  E21B43/26

摘要： The invention discloses a method of treating a subterranean formation of a well bore, that provides a first treatment fluid; subsequently, pumps the first treatment fluid to initiate a network of low conductivity fractures in the subterranean formation; provides a second treatment fluid comprising a second carrier fluid, a particulate blend including a first amount of particulates having a first average particle size between about 100 and 2000 μm and a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size, such that a packed volume fraction of the particulate blend exceeds 0.74; and subsequently, pumps the second treatment fluid to initiate at least one high conductivity fracture in the subterranean formation, wherein the high conductivity fracture has a conductivity higher than the average of the conductivity of the low conductivity fractures and connects the network of the low conductivity fractures.

摘要翻译： 本发明公开了一种处理提供第一处理流体的井眼的地层的方法， 随后，泵送第一处理流体以引发地层中低导电性裂缝的网络; 提供包括第二载体流体的第二处理流体，包含第一量的具有约100至2000μm的第一平均粒度的第一量的颗粒的颗粒混合物和具有约三到二十倍之间的第二平均粒度的第二量的颗粒 小于第一平均粒度，使得颗粒混合物的填充体积分数超过0.74; 并且随后，泵送第二处理流体以引发地下地层中的至少一个高导电性裂缝，其中高导电性断裂的导电率高于低导电率裂缝的导电率的平均值，并连接低导电率裂缝的网络 。

公开(公告)号：US20120125617A1

公开(公告)日：2012-05-24

申请号：US12950226

申请日：2010-11-19

申请人： Hongren Gu ,  Yiyan Chen ,  Xiaowei Weng

发明人： Hongren Gu ,  Yiyan Chen ,  Xiaowei Weng

IPC分类号： E21B43/26

CPC分类号： E21B43/267 ,  E21B43/26

摘要： The invention discloses a method of treating a subterranean formation of a well bore, that provides a first treatment fluid; subsequently, pumps the first treatment fluid to initiate a network of low conductivity fractures in the subterranean formation; provides a second treatment fluid comprising a second carrier fluid, a particulate blend including a first amount of particulates having a first average particle size between about 100 and 2000 μm and a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size, such that a packed volume fraction of the particulate blend exceeds 0.74; and subsequently, pumps the second treatment fluid to initiate at least one high conductivity fracture in the subterranean formation, wherein the high conductivity fracture has a conductivity higher than the average of the conductivity of the low conductivity fractures and connects the network of the low conductivity fractures.

摘要翻译： 本发明公开了一种处理提供第一处理流体的井眼地层的方法， 随后，泵送第一处理流体以引发地层中低导电性裂缝的网络; 提供包括第二载体流体的第二处理流体，包含第一量的第一平均颗粒尺寸在约100和2000μm之间的第一量的颗粒的颗粒混合物和第二量的第二平均颗粒尺寸在约三到二十倍之间的颗粒 小于第一平均粒度，使得颗粒混合物的填充体积分数超过0.74; 并且随后，泵送第二处理流体以引发地下地层中的至少一个高导电性裂缝，其中高导电性断裂的导电率高于低导电率裂缝的导电率的平均值，并连接低导电率裂缝的网络 。

公开(公告)号：US20100252268A1

公开(公告)日：2010-10-07

申请号：US12730516

申请日：2010-03-24

申请人： HONGREN GU ,  Xiaowei Weng ,  Vivek Jain

发明人： HONGREN GU ,  Xiaowei Weng ,  Vivek Jain

IPC分类号： E21B43/26

CPC分类号： G01V1/40 ,  E21B43/26 ,  E21B49/008

摘要： A method of treating a subterranean formation penetrated by a wellbore is carried out by performing a diagnostic operation wherein a fluid is introduced into the wellbore at a pressure sufficient to create at least one microseismic event within the formation. The at least one microseismic event is monitored. At least one property of the formation surrounding the well is determined based on the monitored at least one microseismic event. A well treatment is performed based upon the determined at least one property of the well wherein the well is modified by the well treatment.

摘要翻译： 通过执行诊断操作来进行处理由井筒渗透的地层的方法，其中将流体以足以在地层内产生至少一个微震事件的压力引入井眼。 监测至少一个微震事件。 基于所监测的至少一个微震事件确定围绕井的地层的至少一个性质。 基于确定的井的至少一个性质进行井处理，其中井被井处理改造。

公开(公告)号：US20140151035A1

公开(公告)日：2014-06-05

申请号：US14126201

申请日：2012-07-30

申请人： Charles-Edouard Cohen ,  Wenyue Xu ,  Philippe M.J. Tardy ,  Xiaowei Weng

发明人： Charles-Edouard Cohen ,  Wenyue Xu ,  Philippe M.J. Tardy ,  Xiaowei Weng

IPC分类号： E21B43/12 ,  E21B43/26

CPC分类号： E21B43/12 ,  E21B43/00 ,  E21B43/26

摘要： A method of performing an oilfield operation about a wellbore penetrating a subterranean formation are provided. The method involves performing a fracture operation by generating fractures about the wellbore. The fractures define a hydraulic fracture network (HFN) about the wellbore. The method also involves generating a discrete fracture network (DFN) about the wellbore by extrapolating fracture data from the HFN. The DFN includes fracture branches with intersections therebetween and matrix blocks. The method also involves generating a depth of drainage through the DFN, defining production parameter(s), and performing a production operation to produce fluids from the subterranean formation based on the depth of drainage and the production parameter(s). The production operation may involve generating a flow rate through the DFN, generating a pressure profile of the DFN for an initial time based on the flow rate, and generating a production rate based on the pressure profile.

摘要翻译： 提供了一种对渗透地下地层的井身进行油田作业的方法。 该方法涉及通过产生关于井眼的裂缝进行断裂操作。 裂缝定义了关于井筒的水力裂缝网络（HFN）。 该方法还涉及通过外推来自HFN的断裂数据来生成关于井筒的离散裂缝网络（DFN）。 DFN包括断裂分支与其间的交点和矩阵块。 该方法还包括通过DFN产生排水深度，定义生产参数，以及基于排水深度和生产参数进行从地下地层产生流体的生产操作。 生产操作可以包括通过DFN产生流量，基于流量产生初始时间的DFN的压力分布，以及基于压力分布生成生产率。

公开(公告)号：US08571843B2

公开(公告)日：2013-10-29

申请号：US13586158

申请日：2012-08-15

申请人： Xiaowei Weng ,  Eduard Siebrits

发明人： Xiaowei Weng ,  Eduard Siebrits

IPC分类号： G06G7/48

CPC分类号： E21B43/26 ,  E21B43/267 ,  G06G7/50 ,  G06G7/57

摘要： A method is provided for performing a fracture treatment on a subterranean formation. The method includes acquiring subterranean formation layer geomechanical properties, which include well completion and reservoir data for the subterranean formation. The method also includes inputting geomechanical properties of the formation into a model, and simulating propagation of a network of fractures in the formation. The method further includes predicting a flow rate and pressure distribution throughout the network of fractures by solving governing deformation and flow equations, and predicting a result of the fracture treatment. The model is adjusted if the predicted result is not satisfactory.

摘要翻译： 提供了一种对地层进行断裂处理的方法。 该方法包括获取地下地层的地质力学性质，其包括地层的完井和储层数据。 该方法还包括将地层的地质力学性质输入模型，并模拟地层中裂缝网络的传播。 该方法还包括通过求解控制变形和流动方程来预测整个网络中的流量和压力分布，并预测断裂处理的结果。 如果预测结果不理想，则调整模型。

公开(公告)号：US08412500B2

公开(公告)日：2013-04-02

申请号：US11936344

申请日：2007-11-07

申请人： Xiaowei Weng ,  Eduard Siebrits

发明人： Xiaowei Weng ,  Eduard Siebrits

IPC分类号： G06G7/48

CPC分类号： E21B43/26 ,  E21B43/267 ,  G06G7/50 ,  G06G7/57

摘要： 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.

摘要翻译： 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：US5497831A

公开(公告)日：1996-03-12

申请号：US316985

申请日：1994-10-03

申请人： Bryant W. Hainey ,  Xiaowei Weng

发明人： Bryant W. Hainey ,  Xiaowei Weng

IPC分类号： E21B43/26

CPC分类号： E21B43/26

摘要： Deviated wells, in particular, are hydraulically fractured at reduced rates and with higher viscosity fracturing fluids if the fracture design indicates during an initial test fracture that the instantaneous shut-in pressure, upon cessation of injection, exceeds a predetermined amount indicating high friction pressure losses in the near wellbore region of the fracture. Increasing the fracture fluid viscosity and reducing the fracture fluid rate of injection minimizes the creation of multiple fractures of reduced width in the near wellbore region and the high probability of fracture screenout resulting from the creation of the multiple reduced width fractures.

摘要翻译： 如果断裂设计在初始试验断裂期间表明，在注射停止时，瞬时闭合压力超过预定量，表明高摩擦压力损失，特别是偏心井，以降低的速率水压断裂，并具有较高粘度的压裂液 在裂缝的近井眼区域。 增加断裂流体粘度并降低注入的压裂流体速率，使得在近井筒区域中宽度减小的多个裂缝的产生最小化，并且由于形成多个减小宽度的裂缝而导致的断裂筛选的高概率。