公开(公告)号：US06179066B2

公开(公告)日：2001-01-30

申请号：US09231568

申请日：1999-01-14

申请人： Hatem Nasr ,  Macmillan M. Wisler ,  Joachim Oppelt

发明人： Hatem Nasr ,  Macmillan M. Wisler ,  Joachim Oppelt

IPC分类号： E21B706

CPC分类号： E21B47/124 ,  E21B17/1014 ,  E21B17/1064 ,  E21B44/00 ,  E21B44/005 ,  E21B47/01 ,  E21B47/082 ,  E21B47/12 ,  G01V11/005 ,  G01V2210/161

摘要： The present invention provides a drilling assembly with a stabilization system that stabilizes at least a section of the drilling assembly as a function of one or more downhole measured parameters or parameters of interest. One or more sensors carried by the drilling assembly measure the desired parameters of interest and a control system controls the stabilizer system in response to one or more determined parameters of interest to provide desired stabilization of a section of the drilling assembly. Measurement-while-drilling sensors whose measurements are affected by the parameters of interest are preferably disposed in the stabilized section. In one embodiment, the stabilization system includes at least two axially spaced apart stabilizers. Each such stabilizer includes a plurality of independently adjustable members that radially extend from the drilling assembly to exert force on the wellbore inside. A control circuit processes the signals from the sensors and in response thereto causes a power unit to independently adjust the force applied by the adjustable members so as to maintain a parameter of interest below a predetermined value. The measurement-while-drilling sensors take measurements while the stabilization system is activated, which may be during the drilling of the wellbore or during retrieval of the drilling assembly from the wellbore. In an alternative embodiment, the stabilization system includes only one stabilizer that may contain a plurality of independently adjustable members.

摘要翻译： 本发明提供一种具有稳定系统的钻井组件，该稳定系统根据一个或多个井下测量参数或感兴趣的参数来调节钻井组件的至少一部分。 由钻井组件承载的一个或多个传感器测量所期望的感兴趣的参数，并且控制系统响应于一个或多个所确定的感兴趣的参数来控制稳定器系统，以提供钻孔组件的一部分的期望的稳定性。 其测量受感兴趣的参数影响的钻探传感器测量优选设置在稳定部分中。 在一个实施例中，稳定系统包括至少两个轴向隔开的稳定器。 每个这样的稳定​​器包括多个独立可调的构件，其从钻井组件径向延伸以在井筒内部施加力。 控制电路处理来自传感器的信号，并且响应于此使得功率单元独立地调节由可调节构件施加的力，以将感兴趣的参数保持在预定值以下。 钻井测量传感器在稳定系统被激活时进行测量，这可能是在钻井期间或在从井筒取回钻井组件期间进行的。 在替代实施例中，稳定系统仅包括可以包含多个可独立调节的构件的一个稳定器。

公开(公告)号：US5369599A

公开(公告)日：1994-11-29

申请号：US925058

申请日：1992-08-04

申请人： Firooz A. Sadjadi ,  Mike E. Bazakos ,  Hatem Nasr

发明人： Firooz A. Sadjadi ,  Mike E. Bazakos ,  Hatem Nasr

IPC分类号： G01S13/89 ,  G01S17/89 ,  G06K9/62 ,  G06T7/60 ,  G01S13/04

CPC分类号： G06K9/6217 ,  G01S13/89 ,  G01S17/89 ,  G06T7/60

摘要： A performance measure of an ATR is made from ancillary target data and the ATR output. A parameter of the ATR is varied to determine the change an ATR performance due to the parameter variation. Separate performance in the form of a quadratic equation models provide performance as a function of parameter and metrics. The performance model is partially differentiated with respect to the parameter. The partial differentiation allows solution for the estimated metric.

摘要翻译： ATR的性能测量由辅助目标数据和ATR输出进行。 改变ATR的参数以确定由于参数变化而导致的ATR性能的变化。 以二次方程模型的形式分离性能提供了作为参数和度量的函数的性能。 性能模型在参数方面有部分差异。 偏微分允许估计度量的解。