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1.发明授权公开(公告)号：US10132119B2
公开(公告)日：2018-11-20
申请号：US14517433
申请日：2014-10-17
摘要： A method for predicting a path of a borehole that will be drilled in a rock formation by a bottomhole assembly (BHA) having a drill bit includes: constructing a model of the BHA; calculating confined compressive strength of the rock formation using an axial motion drill bit model that receives drilling parameter, drill bit design and lithology information; calculating lateral motion of the drill bit using a lateral motion drill bit model; calculating a ratio of lateral motion to axial motion using the lateral motion drill bit model; calculating an inclination angle and an azimuthal direction of the BHA using a BHA steering model that receives the ratio; and iterating the above steps by updating the BHA model to include extending the borehole an incremental distance in the direction of the inclination angle and the azimuthal direction and displacing the BHA the incremental distance in the extended borehole.
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公开(公告)号：US20150142403A1
公开(公告)日：2015-05-21
申请号：US14517445
申请日：2014-10-17
摘要： A method for predicting an amount of axial motion of a drill bit having one or more cutters for drilling formation rock includes: receiving lithology data for the formation rock; receiving drilling parameters; calculating confined compressive strength (CCS) of the rock using the received information; calculating an area of cut into the formation rock by each of the one or more cutters; calculating an effective back rake of each of the one or more cutters; calculating a force applied to each of the one or more cutters using the CCS, the area of cut and the effective back rake of the one or more cutters, and by accounting for an orientation of each cutter with respect to a surface of the rock to be cut; and summing the calculated forces applied to each of the one or more cutters to calculate the weight on bit and torque on bit.
摘要翻译： 一种用于预测具有用于钻井地层岩石的一个或多个切割器的钻头的轴向运动量的方法包括：接收地层岩石的岩性数据; 接收钻孔参数; 使用接收到的信息计算岩石的受限抗压强度（CCS）; 计算由所述一个或多个切割器中的每一个切割成地层岩石的区域; 计算所述一个或多个切割器中的每一个的有效后掠; 使用CCS计算施加到所述一个或多个切割器中的每一个的力，所述切割区域和所述一个或多个切割器的有效后掠，并且通过考虑每个切割器相对于所述岩石表面的取向至 被切断 并计算施加到一个或多个切割器中的每一个的计算力以计算钻头上的重量和位上的扭矩。
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公开(公告)号：US20130151219A1
公开(公告)日：2013-06-13
申请号：US13671672
申请日：2012-11-08
CPC分类号： E21B47/00 , E21B41/00 , G06F17/5009 , Y02C10/14
摘要： A method of generating a directional response of a drill bit based on one or more drilling parameters includes performing actual or simulated tests with a drill bit in a test material having a strength under different experimental drilling parameters and recording the results of the plurality of tests. A representation of an expected directional response of the drill bit is formed based on the results. Current drilling parameters are receiving current drilling parameters at a computing device and the directional response is generated based on the current drilling parameters by utilizing the representation.
摘要翻译： 基于一个或多个钻孔参数产生钻头的定向响应的方法包括使用具有在不同实验钻井参数下的强度的测试材料中的钻头执行实际或模拟测试并且记录多个测试的结果。 基于结果形成钻头的期望的定向响应的表示。 目前的钻井参数在计算装置处接收当前的钻井参数，并且通过利用该表示，基于当前的钻井参数产生定向响应。
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公开(公告)号：US09303505B2
公开(公告)日：2016-04-05
申请号：US13671672
申请日：2012-11-08
CPC分类号： E21B47/00 , E21B41/00 , G06F17/5009 , Y02C10/14
摘要： A method of generating a directional response of a drill bit based on one or more drilling parameters includes performing actual or simulated tests with a drill bit in a test material having a strength under different experimental drilling parameters and recording the results of the plurality of tests. A representation of an expected directional response of the drill bit is formed based on the results. Current drilling parameters are receiving current drilling parameters at a computing device and the directional response is generated based on the current drilling parameters by utilizing the representation.
摘要翻译： 基于一个或多个钻孔参数产生钻头的定向响应的方法包括使用具有在不同实验钻井参数下的强度的测试材料中的钻头进行实际或模拟测试并记录多个测试的结果。 基于结果形成钻头的期望的定向响应的表示。 目前的钻井参数在计算装置处接收当前的钻井参数，并且通过利用该表示，基于当前的钻井参数产生定向响应。
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公开(公告)号：US20150142404A1
公开(公告)日：2015-05-21
申请号：US14517454
申请日：2014-10-17
摘要： A method for predicting a change in lateral displacement with a change in axial displacement of a drill bit drilling in a formation rock includes: constructing a virtual representation of the drill bit and the formation rock, the drill bit having a gage pad configured to remove rock by wearing or crushing the rock during moving contact and a cutter configured to cut into the rock during moving contact with the rock; adjusting lateral penetration depth until rock reactive force equals a side force applied to the drill bit to provide an adjusted lateral penetration depth; removing formation rock to where the pad and the cutters contact the rock at the adjusted lateral penetration depth and to a selected axial displacement of the drill bit; moving the drill bit in a drilling direction to the end of the currently drilled borehole; and iterating the adjusting, the removing, and the moving.
摘要翻译： 用于预测地层岩石中钻头钻孔的轴向位移变化的横向位移变化的方法包括：构造钻头和地层岩石的虚拟表示，所述钻头具有被配置为移除岩石的计量垫 通过在移动接触期间磨损或破碎岩石，以及配置成在与岩石移动接触期间切割成岩石的切割器; 调整横向穿透深度，直到岩石反作用力等于施加到钻头的侧向力以提供调整的横向穿透深度; 将地层岩石移除到所述垫和所述切割器在所述调整的横向穿透深度处与所述钻头的选定的轴向位移接触所述岩石的地方; 将钻头沿钻孔方向移动到当前钻孔的末端; 并重复调整，移除和移动。
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公开(公告)号：US20140122034A1
公开(公告)日：2014-05-01
申请号：US13671647
申请日：2012-11-08
IPC分类号： G06F17/50
CPC分类号： G06F17/5009 , E21B10/00
摘要： A method of predicting behavior of a drilling assembly includes generating, by a processor, a mathematical representation of a geometry of drill bit that includes a plurality of earth contacting portions, the plurality of earth contacting portions including a plurality of cutters and one or more additional components; estimating, with a separate model for each earth contacting portion, contact with the earth formation during a drilling operation; and estimating one or more forces on the one or more earth contact portions during the drilling operation based on the estimated contact.
摘要翻译： 一种预测钻井组件的行为的方法包括由处理器生成包括多个接地部分的钻头的几何形状的数学表示，所述多个接地部分包括多个切割器和一个或多个附加 组件; 通过用于每个地球接触部分的单独模型来估计在钻井操作期间与地层的接触; 以及基于估计的接触，在钻井操作期间估计一个或多个接地部分上的一个或多个力。
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公开(公告)号：US10012025B2
公开(公告)日：2018-07-03
申请号：US14517454
申请日：2014-10-17
摘要： A method for predicting a change in lateral displacement with a change in axial displacement of a drill bit drilling in a formation rock includes: constructing a virtual representation of the drill bit and the formation rock, the drill bit having a gage pad configured to remove rock by wearing or crushing the rock during moving contact and a cutter configured to cut into the rock during moving contact with the rock; adjusting lateral penetration depth until rock reactive force equals a side force applied to the drill bit to provide an adjusted lateral penetration depth; removing formation rock to where the pad and the cutters contact the rock at the adjusted lateral penetration depth and to a selected axial displacement of the drill bit; moving the drill bit in a drilling direction to the end of the currently drilled borehole; and iterating the adjusting, the removing, and the moving.
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公开(公告)号：US09951560B2
公开(公告)日：2018-04-24
申请号：US14517445
申请日：2014-10-17
摘要： A method for predicting an amount of axial motion of a drill bit having one or more cutters for drilling formation rock includes: receiving lithology data for the formation rock; receiving drilling parameters; calculating confined compressive strength (CCS) of the rock using the received information; calculating an area of cut into the formation rock by each of the one or more cutters; calculating an effective back rake of each of the one or more cutters; calculating a force applied to each of the one or more cutters using the CCS, the area of cut and the effective back rake of the one or more cutters, and by accounting for an orientation of each cutter with respect to a surface of the rock to be cut; and summing the calculated forces applied to each of the one or more cutters to calculate the weight on bit and torque on bit.
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9.发明申请DIRECTIONAL DRILL AHEAD SIMULATOR: DIRECTIONAL WELLBORE PREDICTION USING BHA AND BIT MODELS 审中-公开方向钻头前端模拟器：使用BHA和BIT模型的方向井眼预测公开(公告)号：US20150142406A1
公开(公告)日：2015-05-21
申请号：US14517433
申请日：2014-10-17
CPC分类号： E21B7/04 , G06F17/5009
摘要： A method for predicting a path of a borehole that will be drilled in a rock formation by a bottomhole assembly (BHA) having a drill bit includes: constructing a model of the BHA; calculating confined compressive strength of the rock formation using an axial motion drill bit model that receives drilling parameter, drill bit design and lithology information; calculating lateral motion of the drill bit using a lateral motion drill bit model; calculating a ratio of lateral motion to axial motion using the lateral motion drill bit model; calculating an inclination angle and an azimuthal direction of the BHA using a BHA steering model that receives the ratio; and iterating the above steps by updating the BHA model to include extending the borehole an incremental distance in the direction of the inclination angle and the azimuthal direction and displacing the BHA the incremental distance in the extended borehole.
摘要翻译： 一种用于预测将由具有钻头的井底组件（BHA）在岩层中钻取的钻孔的路径的方法包括：构建BHA的模型; 使用接受钻孔参数，钻头设计和岩性信息的轴向运动钻头模型计算岩层的限定抗压强度; 使用横向运动钻头模型计算钻头的横向运动; 使用横向运动钻头模型计算侧向运动与轴向运动的比率; 使用接收该比率的BHA转向模型计算BHA的倾斜角度和方位角方向; 并且通过更新BHA模型来迭代上述步骤，以包括在倾斜角度和方位角方向上延伸钻孔增量距离，并使BHA在延伸钻孔中移动增量距离。
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公开(公告)号：US20130248256A1
公开(公告)日：2013-09-26
申请号：US13428233
申请日：2012-03-23
IPC分类号： E21B10/627 , G06F17/50
CPC分类号： E21B10/43 , G06F17/5009
摘要： A method of designing a drill bit includes: defining a representation of a first drill bit including at least a first cutter having a first face, the first cutter being disposed on the representation of the first drill bit in a first orientation; simulating in a first simulation on a computing device off-axis rotation of the first drill bit in a simulated subterranean formation; determining that the first face included, during the first simulation, a first face orientation direction that was oriented different than a face cutting direction by an amount that exceeds a predetermined threshold; and defining the first drill bit such that the first cutter is disposed in a second orientation.
摘要翻译： 设计钻头的方法包括：限定第一钻头的表示，所述第一钻头包括至少第一切割器，所述第一切割器具有第一面，所述第一切割器以第一方位设置在所述第一钻头的所述表示上; 在计算装置的第一模拟中模拟在模拟地下地层中的第一钻头的离轴旋转; 确定所述第一面包括在所述第一模拟期间，所述第一面部朝向与面切割方向不同的第一面取向方向超过预定阈值; 并且限定所述第一钻头，使得所述第一切割器以第二方向设置。
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