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    • 26. 发明公开
    • APPARATUS TO REDUCE PRESSURE AND THERMAL SENSITIVITY OF HIGH PRECISION OPTICAL DISPLACEMENT SENSORS
    • 装置以降低压力和热量高灵敏度精密光学SHIFT探测器
    • EP3063368A1
    • 2016-09-07
    • EP14858104.4
    • 2014-10-27
    • Baker Hughes Incorporated
    • EDWARDS, Carl, M.
    • E21B47/002G01N21/01
    • G01B9/02067E21B47/011E21B49/00G01B9/02052G01B9/02075G01B2290/25G01D5/266G01D5/34G01V11/00
    • Methods, systems and devices for estimating a parameter of interest in a borehole. The method may include generating information from an optical displacement device relating to relative motion between two or more reflective surfaces thereof that is indicative of the parameter of interest; and preventing changes in the information resulting from changes at the optical displacement device in at least one of i) temperature, or ii) pressure, by compensating for the changes. Compensating may include adjusting at least one light source generating an electromagnetic beam at least partly received by the optical displacement device responsive to information relating to a control optical displacement device at the optical displacement device. Compensating may include using an optical displacement device and configuring the optical displacement device such that a difference between a first variable gap and a second variable gap is substantially zero while the apparatus is subject to nominal conditions.
    • 方法,系统和设备在钻孔估计感兴趣的参数。 该方法可以包括从在光学位移装置中的两个或多个反射表面之间与相对运动其确实产生信息表示的感兴趣的参数的; 预防和在信息更改自于光学移位装置变化产生在i的至少一个)温度,或ii)的压力,通过补偿的变化。 补偿的步骤可包括:调整至少部分地由响应于信息在光学位移装置有关的控制的光学位移装置的光学位移装置接收电磁波束中的至少一个光源产生。 补偿的步骤可包括使用在光学位移装置以及配置所述光学位移装置搜索做了第一可变间隙和第二可变间隙之间的差基本为零,而该装置是受标称条件。
    • 30. 发明公开
    • METHOD AND APPARATUS FOR OPTIMIZING DEEP RESISTIVITY MEASUREMENTS WITH MULTI-COMPONENT ANTENNAS
    • 方法和设备优化利用多个天线深电阻测量
    • EP3037847A1
    • 2016-06-29
    • EP16155873.9
    • 2012-12-19
    • HALLIBURTON ENERGY SERVICES, INC.
    • WU, Hsu-HsiangDonderici, BurkayGuner, Baris
    • G01V3/28G01V3/38G01V11/00E21B47/026
    • G01V3/08E21B47/026G01V3/28G01V3/38G01V11/00
    • According to aspects of the present disclosure, systems and methods for optimizing deep resistivity measurements are described herein. The method may include obtaining one or more first multi-component measurements from a downhole tool disposed in a borehole. The downhole tool may comprise multi-component antennae. A relative structural dip angle, Φ, of the downhole tool relative to formations may be determined, for example, through the use of an additional downhole tool, or computationally using the one or more first multi-component measurements. A tilt angle of at least one of the multi-component antenna may be adjusted, with the adjusted tilt angle being based on the dip angle. The method may further include obtaining one or more second multi-component measurements associated with the adjusted tilt angle, and determining a formation characteristic based, at least in part, on the one or more second multi-component measurements, without including or considering formation anisotropy effects.
    • 。根据本发明的方面,系统和用于优化深电阻率测量方法被描述英寸 该方法可以包括从钻孔中的处理完毕的井下工具获得的一个或多个第一多组分测量。 井下工具可以包括多组分的天线。 甲相对结构倾角,|,相对于地层的井下工具可以是确定的开采,例如,通过使用附加的井下工具,或计算使用所述一个或多个第一多组分测量。 所述多组分天线中的至少一个的倾斜角可与经调节倾斜角度是基于所述倾角进行调整。 该方法还可以包括获取一个或多个与所调整的倾斜角相关联的多个第二多组分的测量,并确定开采地层特性基于,至少部分地基于所述一个或多个第二多组分的测量,而不包括或考虑形成各向异性 效果。