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公开(公告)号：US20070227775A1
公开(公告)日：2007-10-04
申请号：US11706143
申请日：2007-02-13
申请人： Ning Ma , Ralf J. Muller , Leyland Smith
发明人： Ning Ma , Ralf J. Muller , Leyland Smith
CPC分类号： E21B7/06 , E21B17/1014 , E21B36/00
摘要： A rotary steerable apparatus is provided having an actuator for pushing the bit or pointing the bit that includes a shape memory alloy. An elongated form of the alloy, such as a wire or rod, is employed in a mechanism that applies force in a direction transverse to the wellbore in response to a change in length of the alloy. Temperature of the alloy is controlled to change shape and produce the desired force on pads for operating the apparatus. The apparatus may be used with downhole power generation and control electronics to steer a bit, either in response to signals from the surface or from downhole instruments.
摘要翻译： 提供了一种旋转导向装置，具有用于推动钻头或指向包括形状记忆合金的钻头的致动器。 合金的细长形式，例如线或杆，用于响应于合金的长度变化沿横向于井眼的方向施加力的机构。 控制合金的温度以改变形状并在用于操作该装置的垫上产生期望的力。 该装置可以与井下发电和控制电子装置一起使用，以响应于来自表面或井下仪器的信号而转向一点。
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公开(公告)号：US07631707B2
公开(公告)日：2009-12-15
申请号：US11706143
申请日：2007-02-13
申请人： Ning Ma , Ralf J. Muller , Leyland Smith
发明人： Ning Ma , Ralf J. Muller , Leyland Smith
IPC分类号： E21B7/04
CPC分类号： E21B7/06 , E21B17/1014 , E21B36/00
摘要： A rotary steerable apparatus is provided having an actuator for pushing the bit or pointing the bit that includes a shape memory alloy. An elongated form of the alloy, such as a wire or rod, is employed in a mechanism that applies force in a direction transverse to the wellbore in response to a change in length of the alloy. Temperature of the alloy is controlled to change shape and produce the desired force on pads for operating the apparatus. The apparatus may be used with downhole power generation and control electronics to steer a bit, either in response to signals from the surface or from downhole instruments.
摘要翻译： 提供了一种旋转导向装置，具有用于推动钻头或指向包括形状记忆合金的钻头的致动器。 合金的细长形式，例如线或杆，用于响应于合金的长度变化沿横向于井眼的方向施加力的机构。 控制合金的温度以改变形状并在用于操作该装置的垫上产生期望的力。 该装置可以与井下发电和控制电子装置一起使用，以响应于来自表面或井下仪器的信号而转向一点。
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公开(公告)号：US20100108382A1
公开(公告)日：2010-05-06
申请号：US12620387
申请日：2009-11-17
申请人： Ning Ma , Ralf J. Muller , Leyland Smith
发明人： Ning Ma , Ralf J. Muller , Leyland Smith
CPC分类号： E21B7/06 , E21B17/1014 , E21B36/00
摘要： A rotary steerable apparatus is provided having an actuator for pushing the bit or pointing the bit that includes a shape memory alloy. An elongated form of the alloy, such as a wire or rod, is employed in a mechanism that applies force in a direction transverse to the wellbore in response to a change in length of the alloy. Temperature of the alloy is controlled to change shape and produce the desired force on pads for operating the apparatus. The apparatus may be used with downhole power generation and control electronics to steer a bit, either in response to signals from the surface or from downhole instruments.
摘要翻译： 提供了一种旋转导向装置，具有用于推动钻头或指向包括形状记忆合金的钻头的致动器。 合金的细长形式，例如线或杆，用于响应于合金的长度变化沿横向于井眼的方向施加力的机构。 控制合金的温度以改变形状并在用于操作该装置的垫上产生期望的力。 该装置可以与井下发电和控制电子装置一起使用，以响应于来自表面或井下仪器的信号而转向一点。
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公开(公告)号：US08104548B2
公开(公告)日：2012-01-31
申请号：US12620387
申请日：2009-11-17
申请人： Ning Ma , Ralf J. Muller , Leyland Smith
发明人： Ning Ma , Ralf J. Muller , Leyland Smith
IPC分类号： E21B7/04
CPC分类号： E21B7/06 , E21B17/1014 , E21B36/00
摘要： A rotary steerable apparatus is provided having an actuator for pushing the bit or pointing the bit that includes a shape memory alloy. An elongated form of the alloy, such as a wire or rod, is employed in a mechanism that applies force in a direction transverse to the wellbore in response to a change in length of the alloy. Temperature of the alloy is controlled to change shape and produce the desired force on pads for operating the apparatus. The apparatus may be used with downhole power generation and control electronics to steer a bit, either in response to signals from the surface or from downhole instruments.
摘要翻译： 提供了一种旋转导向装置，具有用于推动钻头或指向包括形状记忆合金的钻头的致动器。 合金的细长形式，例如线或杆，用于响应于合金的长度变化沿横向于井眼的方向施加力的机构。 控制合金的温度以改变形状并在用于操作该装置的垫上产生期望的力。 该装置可以与井下发电和控制电子装置一起使用，以响应于来自表面或井下仪器的信号而转向一点。
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