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公开(公告)号：US07313052B2
公开(公告)日：2007-12-25
申请号：US11102006
申请日：2005-04-08
IPC分类号： H04H9/00
CPC分类号： E21B47/12 , H04L25/0204 , H04L25/0228
摘要： A system and methods of transmitting information between a first location and a second location comprise transmitting a data signal and a known signal from one of the first location and the second location over a signal channel having a first noise component. A second noise component is measured in a noise channel adjacent the signal channel. The data signal, the known signal, and the first noise component are received at the other location. The first noise component is estimated based on the second noise component. The estimated noise component is combined with the received data signal and the received known signal to generate noise-cancelled received data and received known signals. The noise-cancelled received known signal is processed to obtain an estimate of the channel transfer function. The estimated channel transfer function is combined with the noise-cancelled received data signal to reconstruct the transmitted data signal.
摘要翻译： 在第一位置和第二位置之间传送信息的系统和方法包括通过具有第一噪声分量的信号信道从第一位置和第二位置之一发送数据信号和已知信号。 在与信号通道相邻的噪声通道中测量第二噪声分量。 在另一位置接收数据信号，已知信号和第一噪声分量。 基于第二噪声分量来估计第一噪声分量。 将估计的噪声分量与接收到的数据信号和接收到的已知信号组合以产生噪声消除的接收数据和接收到的已知信号。 处理噪声消除的接收已知信号以获得信道传递函数的估计。 估计的信道传递函数与噪声消除的接收数据信号相结合，以重建传输的数据信号。
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2.发明申请公开(公告)号：US20110048802A1
公开(公告)日：2011-03-03
申请号：US12862656
申请日：2010-08-24
CPC分类号： E21B21/103 , E21B23/006 , E21B36/001 , E21B44/00 , E21B47/065
摘要： An apparatus and method for reducing temperature along a bottomhole assembly during a drilling operation is provided. In one aspect the bottomhole temperature may be reduced by drilling a borehole using a drill string having a bottomhole assembly at an end thereof, circulating a fluid through the drill string and an annulus between the drill string and the borehole, diverting a selected portion of the fluid from the drill string into the annulus at a selected location above the drill bit to reduce pressure drop across at least a portion of the bottomhole assembly to reduce temperature of the bottomhole assembly during the drilling operation.
摘要翻译： 提供了一种用于在钻井操作期间沿井底组件降低温度的装置和方法。 在一个方面，可以通过使用在其一端具有井底组件的钻柱钻孔钻孔来降低井底温度，使流体穿过钻柱循环，并且在钻柱和钻孔之间旋转环，将所选择的部分 流体在钻头上方的选定位置从钻柱进入环形空间，以减少穿过井底组件的至少一部分的压降，以降低钻井操作期间井底组件的温度。
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3.发明授权Active controlled bottomhole pressure system and method with continuous circulation system 有权主动控制井底压力系统及连续循环系统的方法公开(公告)号：US07806203B2
公开(公告)日：2010-10-05
申请号：US11455041
申请日：2006-06-16
申请人： Sven Krueger , Volker Krueger , Peter Aronstam , Harald Grimmer , Roger W. Fincher , Larry A. Watkins
发明人： Sven Krueger , Volker Krueger , Peter Aronstam , Harald Grimmer , Roger W. Fincher , Larry A. Watkins
IPC分类号： E21B7/00
CPC分类号： E21B21/08
摘要： An APD Device provides a pressure differential in a wellbore to control dynamic pressure loss while drilling fluid is continuously circulated in the wellbore. A continuous circulation system circulates fluid both during drilling of the wellbore and when the drilling is stopped. Operating the APD Device allows wellbore pressure control during continuous circulation without substantially changing density of the fluid. The APD Device can maintain wellbore pressure below the combined pressure caused by weight of the fluid and pressure losses created due to circulation of the fluid in the wellbore, maintain the wellbore at or near a balanced pressure condition, maintain the wellbore at an underbalanced condition, reduce the swab effect in the wellbore, and/or reduce the surge effect in the wellbore. A flow restriction device that creates a backpressure in the wellbore annulus provides surface control of wellbore pressure.
摘要翻译： APD装置在井眼中提供压差以控制动态压力损失，同时钻井液体在井筒中连续循环。 连续循环系统在钻井期间和钻井停止时循环流体。 操作APD装置允许在连续循环期间进行井筒压力控制，而基本上不改变流体的密度。 APD装置可以将井眼压力保持在由于流体重量和由于井眼中的流体循环而产生的压力损失所引起的组合压力之下，保持井筒处于或接近平衡的压力状态，保持井身处于欠平衡状态， 降低井眼中的拭子效应，和/或降低井眼中的浪涌效应。 在井筒环中产生背压的流量限制装置提供井筒压力的表面控制。
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4.发明申请Apparatus and Methods for Controlling Bottomhole Assembly Temperature During a Pause in Drilling Boreholes 有权用于控制钻孔中暂停期间井底装配温度的装置和方法公开(公告)号：US20110048806A1
公开(公告)日：2011-03-03
申请号：US12862643
申请日：2010-08-24
IPC分类号： E21B7/00
CPC分类号： E21B21/103 , E21B23/006 , E21B36/001 , E21B44/00 , E21B47/065
摘要： A method for reducing temperature of a bottomhole assembly during a drilling operation is disclosed, that, in one aspect, may include: drilling a borehole using a drillstring including a bottomhole assembly by circulating a fluid through the drillstring and an annulus between the drillstring and the borehole, pausing drilling, continuing circulating the fluid through the dill string and the annulus. The method further includes diverting a portion of the fluid from the drillstring into the annulus at a selected location above the drill bit to reduce temperature of the bottomhole assembly.
摘要翻译： 公开了一种在钻井操作期间降低井底组件的温度的方法，在一个方面，可以包括：使用包括井底组件的钻柱钻井钻孔，所述钻柱通过使钻柱循环流体和钻柱与钻柱之间的环 钻孔，暂停钻孔，继续循环流体通过莳萝串和环。 该方法还包括将钻头的一部分流体从在钻头上方的选定位置转移到环形空间中以降低井底组件的温度。
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5.发明授权公开(公告)号：US08453760B2
公开(公告)日：2013-06-04
申请号：US12862656
申请日：2010-08-24
CPC分类号： E21B21/103 , E21B23/006 , E21B36/001 , E21B44/00 , E21B47/065
摘要： An apparatus and method for reducing temperature along a bottomhole assembly during a drilling operation is provided. In one aspect the bottomhole temperature may be reduced by drilling a borehole using a drill string having a bottomhole assembly at an end thereof, circulating a fluid through the drill string and an annulus between the drill string and the borehole, diverting a selected portion of the fluid from the drill string into the annulus at a selected location above the drill bit to reduce pressure drop across at least a portion of the bottomhole assembly to reduce temperature of the bottomhole assembly during the drilling operation.
摘要翻译： 提供了一种用于在钻井操作期间沿井底组件降低温度的装置和方法。 在一个方面，可以通过使用在其一端具有井底组件的钻柱钻孔钻孔来降低井底温度，使流体穿过钻柱循环，并且在钻柱和钻孔之间旋转环，将所选择的部分 流体在钻头上方的选定位置从钻柱进入环形空间，以减少穿过井底组件的至少一部分的压降，以降低钻井操作期间井底组件的温度。
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公开(公告)号：US07597148B2
公开(公告)日：2009-10-06
申请号：US11409687
申请日：2006-04-24
申请人： Edward J. O'Malley , Bennett M. Richard , Paul M. McElfresh , Aftab Khokhar , Daniel L. Crosby , Vu Thieu , Roger W. Fincher , Larry A. Watkins
发明人： Edward J. O'Malley , Bennett M. Richard , Paul M. McElfresh , Aftab Khokhar , Daniel L. Crosby , Vu Thieu , Roger W. Fincher , Larry A. Watkins
IPC分类号： E21B28/00
CPC分类号： E21B28/00 , E21B37/00 , E21B43/00 , Y10S166/902
摘要： Gas hydrates, particularly natural gas hydrates e.g. methane hydrates, may be formed and controlled within conduits and vessels by imparting energy to gas and water, for instance using agitation or vibration. The systems and methods allow for improved flow characteristics for fluids containing the gases, e.g. hydrocarbon fluids being transported, and for improved overall efficiencies. The gas and water within a gas flow path may be perturbed or agitated to initiate formation of relatively small hydrate particles. The hydrate particles continue to form as long as energy is imparted and water and hydrate guest molecules are available. High amplitude agitation of the gas and water will repeatedly break up agglomerated hydrate particles that form and encourage the formation of more and smaller particles. As more hydrate forms in this manner, less and less free water may be available proximate the gas and water contact.
摘要翻译： 天然气水合物，特别是天然气水合物。 甲烷水合物可以通过向气体和水赋予能量（例如使用搅拌或振动）在管道和容器内形成和控制。 这些系统和方法允许改善包含气体的流体的流动特性。 运输碳氢化合物流体，提高整体效率。 气流通道内的气体和水可被扰动或搅动以引发相对较小的水合物颗粒的形成。 只要施加能量，水合物颗粒继续形成，并且可以获得水和水合物客体分子。 气体和水的高振幅搅拌将反复破坏聚集的水合物颗粒，形成并促进形成越来越小的颗粒。 当以这种方式形成更多的水合物时，在气体和水接触附近可以获得越来越少的游离水。
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7.发明授权Drilling efficiency through beneficial management of rock stress levels via controlled oscillations of subterranean cutting elements 有权通过地下切割元件的受控振荡有利地管理岩石应力水平，从而提高钻井效率公开(公告)号：US07341116B2
公开(公告)日：2008-03-11
申请号：US11038889
申请日：2005-01-20
IPC分类号： E21B7/24
CPC分类号： E21B7/24
摘要： A device and system for improving efficiency of subterranean cutting elements uses a controlled oscillation super imposed on steady drill bit rotation to maintain a selected rock fracture level. In one aspect, a selected oscillation is applied to the cutting element so that at least some of the stress energy stored in an earthen formation is maintained after fracture of the rock is initiated. Thus, this maintained stress energy can thereafter be used for further crack propagation. In one embodiment, an oscillation device positioned adjacent to the drill bit provides the oscillation. A control unit can be used to operate the oscillation device at a selected oscillation. In one arrangement, the control unit performs a frequency sweep to determine an oscillation that optimizes the cutting action of the drill bit and configures the oscillation device accordingly. One or more sensors connected to the control unit measure parameters used in this determination.
摘要翻译： 用于提高地下切割元件效率的装置和系统使用施加在稳定钻头旋转上的受控振荡来保持选定的岩石断裂水平。 在一个方面，选择的振动被施加到切割元件，使得在开始破坏岩石之后，保持存储在土层中的至少一些应力能量。 因此，此后保持的应力能量可以用于进一步的裂纹扩展。 在一个实施例中，邻近钻头定位的振动装置提供振荡。 可以使用控制单元以选定的振荡来操作振荡装置。 在一种布置中，控制单元执行频率扫描以确定优化钻头的切割动作并相应地配置振荡装置的振荡。 连接到控制单元的一个或多个传感器测量在该确定中使用的参数。
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公开(公告)号：US08455402B2
公开(公告)日：2013-06-04
申请号：US13688366
申请日：2012-11-29
申请人： Larry A. Watkins , Roger W. Fincher
发明人： Larry A. Watkins , Roger W. Fincher
IPC分类号： C09K8/03
CPC分类号： C09K8/32 , C09K8/03 , C09K8/50 , C09K8/516 , E21B7/00 , E21B21/00 , E21B43/121 , E21B43/122 , E21B43/16 , Y10T428/2982
摘要： Fluid systems may contain elements to provide changes in bulk fluid density in response to various environmental conditions. One environmental driver to the variable density is pressure; other environmental drivers include, but are not limited to, temperature or changes in chemistry. The variable density of the fluid is beneficial for controlling sub-surface pressures within desirable pore pressure and fracture gradient envelopes. The variability of fluid density permits construction and operation of a wellbore with much longer hole sections than when using conventional single gradient fluids.
摘要翻译： 流体系统可以包含响应于各种环境条件来提供散装流体密度变化的元件。 可变密度的一个环境驱动力是压力; 其他环境驱动因素包括但不限于温度或化学变化。 流体的可变密度有利于控制所需孔隙压力和裂缝梯度包络内的下表面压力。 流体密度的变化允许建造和操作具有比使用常规单梯度流体时更长的孔部分的井眼。
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公开(公告)号：US20130087338A1
公开(公告)日：2013-04-11
申请号：US13688366
申请日：2012-11-29
申请人： Larry A. Watkins , Roger W. Fincher
发明人： Larry A. Watkins , Roger W. Fincher
CPC分类号： C09K8/32 , C09K8/03 , C09K8/50 , C09K8/516 , E21B7/00 , E21B21/00 , E21B43/121 , E21B43/122 , E21B43/16 , Y10T428/2982
摘要： Fluid systems may contain elements to provide changes in bulk fluid density in response to various environmental conditions. One environmental driver to the variable density is pressure; other environmental drivers include, but are not limited to, temperature or changes in chemistry. The variable density of the fluid is beneficial for controlling sub-surface pressures within desirable pore pressure and fracture gradient envelopes. The variability of fluid density permits construction and operation of a wellbore with much longer hole sections than when using conventional single gradient fluids.
摘要翻译： 流体系统可以包含响应于各种环境条件来提供散装流体密度变化的元件。 可变密度的一个环境驱动力是压力; 其他环境驱动因素包括但不限于温度或化学变化。 流体的可变密度有利于控制所需孔隙压力和裂缝梯度包络内的下表面压力。 流体密度的变化允许建造和操作具有比使用常规单梯度流体时更长的孔部分的井眼。
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10.发明授权Drilling efficiency through beneficial management of rock stress levels via controlled oscillations of subterranean cutting levels 有权通过地下切割水平的受控振荡有效管理岩石应力水平，从而提高钻井效率公开(公告)号：US07730970B2
公开(公告)日：2010-06-08
申请号：US11851183
申请日：2007-09-06
IPC分类号： E21B7/24
CPC分类号： E21B7/24
摘要： A device and system for improving efficiency of subterranean cutting elements uses a controlled oscillation super imposed on steady drill bit rotation to maintain a selected rock fracture level. In one aspect, a selected oscillation is applied to the cutting element so that at least some of the stress energy stored in an earthen formation is maintained after fracture of the rock is initiated. Thus, this maintained stress energy can thereafter be used for further crack propagation. In one embodiment, an oscillation device positioned adjacent to the drill bit provides the oscillation. A control unit can be used to operate the oscillation device at a selected oscillation. In one arrangement, the control unit performs a frequency sweep to determine an oscillation that optimizes the cutting action of the drill bit and configures the oscillation device accordingly. One or more sensors connected to the control unit measure parameters used in this determination.
摘要翻译： 用于提高地下切割元件效率的装置和系统使用施加在稳定钻头旋转上的受控振荡来保持选定的岩石断裂水平。 在一个方面，选择的振动被施加到切割元件，使得在开始破坏岩石之后，保持存储在土层中的至少一些应力能量。 因此，此后保持的应力能量可以用于进一步的裂纹扩展。 在一个实施例中，邻近钻头定位的振动装置提供振荡。 可以使用控制单元以选定的振荡来操作振荡装置。 在一种布置中，控制单元执行频率扫描以确定优化钻头的切割动作并相应地配置振荡装置的振荡。 连接到控制单元的一个或多个传感器测量在该确定中使用的参数。
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