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1. 发明申请

WO2016022192A1 CALIBRATION OF SENSITIVITY AND AXIAL ORTHOGONALITY FOR MAGNETOMETERS 审中-公开
标题翻译：磁测仪的灵敏度和轴向正交性校准
公开(公告)号：WO2016022192A1
公开(公告)日：2016-02-11
申请号：PCT/US2015/031562
申请日：2015-05-19
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： LI, Wenquan , BESTE, Randal Thomas , HENSARLING, Jesse Kevin , ROBERSON, Brian , FARRAH, John Harrison , VU, Tony
IPC分类号： G01R35/00 , G01R33/02
CPC分类号： G01R33/0035 , G01V3/081 , G01V13/00
摘要： A reduced-cost apparatus for calibrating the sensitivity and orthogonality of a triaxial magnetometer, and a method for adjusting the distance between the two coils of a Helmholtz coil and other related parameters are described herein. A method can include positioning a calibrated magnetometer within a mounting fixture between two coils of a Helmholtz coil, the two coils arranged in mutually parallel planes and separated by the radius of the Helmholtz coil, the mounting fixture mounted such that a position of the mounting fixture is adjustable along an axis orthogonal to the mutually parallel planes; adjusting the position of the mounting fixture over at least some of the positions and measuring the magnetic field at each position to generate a set of magnetic field measurements associated with the positions; and adjusting the first distance based on the first set of magnetic field measurements. Additional apparatuses, systems, and methods are disclosed.
摘要翻译：本文描述了用于校准三轴磁力计的灵敏度和正交性的降低成本的装置，以及用于调整亥姆霍兹线圈的两个线圈之间的距离的方法和其他相关参数。一种方法可以包括将校准的磁力计定位在亥姆霍兹线圈的两个线圈之间的安装夹具内，两个线圈布置在相互平行的平面中并被亥姆霍兹线圈的半径分开，安装夹具安装成使得安装夹具可沿着与相互平行的平面垂直的轴线调节; 调整安装夹具的位置在至少一些位置上，并测量每个位置处的磁场以产生与该位置相关联的一组磁场测量; 以及基于所述第一组磁场测量来调整所述第一距离。公开了附加装置，系统和方法。

2. 发明申请

WO2016022194A1 LOW-NOISE FLUXGATE MAGNETOMETER WITH INCREASED OPERATING TEMPERATURE RANGE 审中-公开
标题翻译：低噪声磁通量计具有增加的工作温度范围
公开(公告)号：WO2016022194A1
公开(公告)日：2016-02-11
申请号：PCT/US2015/032403
申请日：2015-05-26
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： LI, Wenquan , BESTE, Randal Thomas , ROBERSON, Brian
IPC分类号： E21B47/00 , G01V3/18 , G01V3/38
CPC分类号： G01R33/0017 , G01R33/045 , G01V3/26
摘要： In some embodiments, an apparatus and a system, as well as a method and an article, may include synchronic symmetrical integrator circuitry and a magnetic field measurement device comprising an excitation circuit including an excitation coil, the excitation coil being wound around an amorphous soft magnetic core having a certain temperature coefficient such that inductance of the excitation circuit will change with temperature variations of the amorphous soft magnetic core; a detection circuit including a detection coil, the detection coil being wound around the same amorphous soft magnetic core, such that inductance variation of the detection circuit with temperature of the core can be detected from the excitation coil; and a resonation control circuit coupled to the excitation circuit and to the detection circuit to adjust a resonant frequency of the detection circuit responsive to temperature variations of the core. Additional apparatus, systems, and methods are disclosed.
摘要翻译：在一些实施例中，装置和系统以及方法和制品可以包括同步对称积分器电路和包括激励电路的磁场测量装置，所述激励电路包括激励线圈，所述激励线圈围绕无定形软磁体磁芯具有一定的温度系数，使得激励电路的电感随着无定形软磁芯的温度变化而变化; 检测电路，其包括检测线圈，所述检测线圈缠绕在相同的非晶软磁芯上，使得可以从所述励磁线圈检测所述检测电路与所述芯的温度的电感变化; 以及耦合到激励电路和检测电路的谐振控制电路，以响应于芯的温度变化来调整检测电路的谐振频率。公开了附加装置，系统和方法。

3. 发明申请

WO2018111221A1 TECHNOLOGIES FOR IN-SITU CALIBRATION OF MAGNETIC FIELD MEASUREMENTS 审中-公开
公开(公告)号：WO2018111221A1
公开(公告)日：2018-06-21
申请号：PCT/US2016/066189
申请日：2016-12-12
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： WU, Hsu-Hsiang , LI, Wenquan , SHAH, Faisal Farooq , ROBERSON, Brian
IPC分类号： G01V13/00 , G01V3/26 , E21B47/00
CPC分类号： G01V13/00 , G01V3/26
摘要： Systems, methods, and computer-readable media for in-situ calibration of magnetic field measurements. In some examples, a method can involve generating a magnetic field via a magnetic field source that is coupled to a downhole tool. The magnetic field source can be located within a fixed distance from one or more sensors coupled to the downhole tool. The method can also involve obtaining respective field measurements of the known magnetic field from the one or more sensors, and comparing the respective field measurements from the one or more sensors with respective reference measurements previously obtained from the one or more sensors to yield respective comparisons. The method can then involve determining, based on the respective comparisons, a respective sensitivity drift for each of the one or more sensors.

4. 发明申请

WO2016025232A1 WELL RANGING APPARATUS, SYSTEMS, AND METHODS 审中-公开
标题翻译：良好的测距装置，系统和方法
公开(公告)号：WO2016025232A1
公开(公告)日：2016-02-18
申请号：PCT/US2015/043566
申请日：2015-08-04
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： ROBERSON, Brian , WU, Hsu-Hsiang , BESTE, Randal Thomas
IPC分类号： E21B47/022 , E21B47/09 , G01V3/18
CPC分类号： E21B47/02216 , E21B7/04 , E21B33/14 , E21B43/2406 , E21B47/024 , E21B47/12 , E21B47/122 , E21B47/18 , G01V3/26 , G01V99/005 , G06F17/11
摘要： Embodiments include well ranging apparatus, systems, and methods which operate to measure a total magnetic field strength at each of three sensors attached to a down hole tool housing, wherein each sensor is to provide normal, tangential, and longitudinal field strength component amplitude values, and wherein at least one of the sensors is attached to the housing spaced approximately equidistant from the other two sensors in an azimuthal plane of the housing, and wherein each of the sensors is spaced apart from the other sensors in a longitudinal direction of the housing. Further activity includes determining at least three gradient field values from the total magnetic field strength measured by the three sensors, and determining an approximate range from a first well in which the sensors are disposed, to a casing of a second well, using the at least three gradient field values. Additional apparatus, systems, and methods are disclosed.
摘要翻译：实施例包括测量装置，系统和方法，其操作以测量附接到井下工具壳体的三个传感器中的每一个处的总磁场强度，其中每个传感器将提供正常的，切向的和纵向的场强分量振幅值，并且其中所述传感器中的至少一个连接到所述壳体，所述壳体在所述壳体的方位平面中与所述另外两个传感器大致等距离间隔开，并且其中每个所述传感器在所述壳体的纵向方向上与所述其它传感器间隔开。进一步的活动包括根据由三个传感器测量的总磁场强度来确定至少三个梯度场值，并且确定从其中设置传感器的第一井到第二井的壳体的近似范围，至少使用至少三个梯度字段值。公开了附加装置，系统和方法。

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