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    • 2. 发明申请
    • PRESSURE RELEASE ENCODING SYSTEM FOR COMMUNICATING DOWNHOLE INFORMATION THROUGH A WELLBORE TO A SURFACE LOCATION
    • 压力释放编码系统,用于通过井眼将表面信息通信到表面位置
    • WO2011084939A2
    • 2011-07-14
    • PCT/US2011/020084
    • 2011-01-04
    • CLOSE, DavidWELLTRONICS APPLICATIONS LLC
    • CLOSE, David
    • E21B47/12G01V1/40
    • E21B47/18G01V11/00
    • A pressure release encoding system (1 ) for communicating downhole information through a wellbore (2) to a surface location (20) include a downhole tool (8) with a valve (36) for providing a fluid restriction to fluid passing in the wellbore (2), a sensor (404) positioned in the wellbore for sensing a downhole condition in the wellbore, a brake (44) cooperative with the valve (36) for moving the valve between at least two positions in timed relation to the downhole condition sensed by the sensor, and a detector (18) positioned at the surface location for providing a measurement value at the surface location correlative to the time between the changes of the pressure of the fluid in the wellbore. The system (1 ) associates position of the valve with pressure transduction. The sensor (404) is an inclination sensor for sensing an angle of inclination of the wellbore.
    • 用于将井下信息通过井眼(2)传送到表面位置(20)的压力释放编码系统(1)包括具有阀(36)的井下工具(8),用于向在井眼中流动的流体提供流体限制( 定位在井眼中的传感器(404),用于感测井眼中的井下状况;与阀(36)协作的制动器(44),用于在至少两个位置之间移动阀门,所述至少两个位置与感测到的井下状况 以及位于表面位置处的检测器(18),用于在与井筒内的流体的压力变化之间相关的表面位置提供测量值。 系统(1)将阀的位置与压力传导相关联。 传感器(404)是用于感测井筒的倾斜角度的倾斜传感器。
    • 4. 发明申请
    • SYSTEM FOR COMMUNICATING DOWNHOLE INFORMATION THROUGH A WELLBORE TO A SURFACE LOCATION
    • 通过井眼将井下信息通信到地面位置的系统
    • WO2008014039A3
    • 2008-10-23
    • PCT/US2007068715
    • 2007-05-10
    • CLOSE DAVID
    • CLOSE DAVID
    • E21B47/16E21B47/18G01V3/00
    • G01V11/00E21B47/18
    • A pressure release encoding system, as shown in Figure 13, for communicating downhole information through a wellbore to a surface location has a valve (7) for providing a fluid restriction to fluid passing in the wellbore, an inclination sensor (404) postioned in the wellbore for sensing a downhole condition in the welbore, an actuator (400) cooperative with the valve for moving the valve between at least two positions in timed relation to the downhole condition sensed by die sensor (18), and a detector postioned at the surface location for providing a measurement value at the surface location correlative to the time between the changes of the pressure of the fluid in the wellbore.
    • 如图13所示的用于将井下信息通过井眼传递到表面位置的压力释放编码系统具有阀(7),用于为在井筒中通过的流体提供流体限制;倾斜传感器(404),其位于 用于感测井眼中的井下状况的井筒;与阀相配合的致动器(400),用于在至少两个位置之间移动阀门,该至少两个位置与由模具传感器(18)感测的井下状态成正比关系;以及检测器, 用于在与井筒中的流体的压力变化之间的时间相关的表面位置处提供测量值的位置。
    • 5. 发明申请
    • PRESSURE RELEASE ENCODING SYSTEM FOR COMMUNICATING DOWNHOLE INFORMATION THROUGH A WELLBORE TO A SURFACE LOCATION
    • 通过井眼向地表位置传递井下信息的压力释放编码系统
    • WO2011084939A3
    • 2011-09-29
    • PCT/US2011020084
    • 2011-01-04
    • CLOSE DAVIDWELLTRONICS APPLIC LLC
    • CLOSE DAVID
    • E21B47/12G01V1/40
    • E21B47/18G01V11/00
    • A pressure release encoding system (1 ) for communicating downhole information through a wellbore (2) to a surface location (20) include a downhole tool (8) with a valve (36) for providing a fluid restriction to fluid passing in the wellbore (2), a sensor (404) positioned in the wellbore for sensing a downhole condition in the wellbore, a brake (44) cooperative with the valve (36) for moving the valve between at least two positions in timed relation to the downhole condition sensed by the sensor, and a detector (18) positioned at the surface location for providing a measurement value at the surface location correlative to the time between the changes of the pressure of the fluid in the wellbore. The system (1 ) associates position of the valve with pressure transduction. The sensor (404) is an inclination sensor for sensing an angle of inclination of the wellbore.
    • 用于将井下信息通过井眼(2)传送到地面位置(20)的压力释放编码系统(1)包括具有阀(36)的井下工具(8),所述阀用于对流过井眼的流体提供流体限制 位于井筒中用于感测井眼中的井下条件的传感器(404),与阀门(36)配合用于在至少两个位置之间移动阀门的制动器(44),所述位置与感测到的井下条件 通过传感器和位于表面位置的检测器(18),用于在表面位置处提供与井眼中的流体的压力变化之间的时间相关的测量值。 系统(1)将阀的位置与压力转换联系起来。 传感器(404)是用于感测井筒的倾斜角度的倾斜传感器。
    • 6. 发明申请
    • METHOD FOR DETERMINING POSITION WITH IMPROVED CALIBRATION BY OPPOSING SENSORS
    • 用反射传感器改进校准确定位置的方法
    • WO2017214416A1
    • 2017-12-14
    • PCT/US2017/036581
    • 2017-06-08
    • NORALIS LIMITEDCLOSE, DavidTROY, George, W.
    • CLOSE, DavidTROY, George, W.
    • E21B47/024G01V13/00E21B47/26
    • The method and system for determining position with improved calibration allows a device to initiate activity at the proper location, such as navigating a drill bit through a rock formation. A pair of position sensors (30, 30') in opposite orientations generates position data signals. A temperature sensor (40) detects temperature and duration of the temperature. An adjusted plastic bias value is determined by a processor module (50) based on the temperature data signal, the duration of the temperature, and the position data signals so as to account for bias and hysteresis errors and error correction based on the opposing orientations of the pair of position sensors. A position value is set according to the adjusted plastic bias value so that the position value is more accurate. The activity of the terminal device (20) is initiated or maintained according to the position value calibrated by the adjusted plastic bias value.
    • 用于通过改进的校准来确定位置的方法和系统允许装置在适当的位置开始活动,例如在岩层中导航钻头。 位置相反的一对位置传感器(30,30')产生位置数据信号。 温度传感器(40)检测温度和温度的持续时间。 通过处理器模块(50)基于温度数据信号,温度持续时间和位置数据信号来确定调整的塑料偏置值,以便基于反向偏置和滞后误差以及基于 一对位置传感器。 位置值根据调整后的塑料偏置值进行设置,以使位置值更准确。 终端设备(20)的活动根据由调整的塑料偏差值校准的位置值来启动或维持。
    • 7. 发明申请
    • METHOD FOR DETERMINING POSITION WITH IMPROVED CALIBRATION
    • 用改进的校准确定位置的方法
    • WO2017214412A1
    • 2017-12-14
    • PCT/US2017/036577
    • 2017-06-08
    • NORALIS LIMITEDCLOSE, DavidTROY, George, W.
    • CLOSE, DavidTROY, George, W.
    • G01D18/00E21B47/09
    • The method and system for determining position with improved calibration allows a device to initiate activity at the proper location, such as navigating a drill bit through a rock formation. A position sensor (30) having an oscillation element with a range of displacement in a set direction according to gravity generates a position data signal based on an amount of displacement in the set direction. A temperature sensor (40) detects temperature and duration of the temperature. A plastic bias value is determined by a processor module (50) based on the temperature data signal, the duration of the temperature, and the position data signal so as to account for bias and hysteresis errors. A position value is set according to the plastic bias value so that the position value is more accurate. The activity of the terminal device is initiated or maintained according to the position value calibrated by the plastic bias value.
    • 用于通过改进的校准来确定位置的方法和系统允许装置在适当的位置开始活动,例如在岩层中导航钻头。 具有振动元件的位置传感器(30)根据重力在设定方向上具有一定的位移范围,基于设定方向上的位移量生成位置数据信号。 温度传感器(40)检测温度和温度的持续时间。 处理器模块(50)基于温度数据信号,温度持续时间和位置数据信号来确定塑料偏置值,以便考虑偏置和滞后误差。 根据塑料偏置值设置位置值,以使位置值更精确。 根据由塑料偏差值校准的位置值启动或维护终端设备的活动。
    • 8. 发明申请
    • SYSTEM FOR COMMUNICATING DOWNHOLE INFORMATION THROUGH A WELLBORE TO A SURFACE LOCATION
    • 通过井眼将井下信息通信到地面位置的系统
    • WO2008014039A2
    • 2008-01-31
    • PCT/US2007/068715
    • 2007-05-10
    • CLOSE, David
    • CLOSE, David
    • E21B47/12G01V3/00
    • G01V11/00E21B47/18
    • A pressure release encoding system for communicating downhole information through a wellbore to a surface location has a valve for providing a fluid restriction to fluid passing in the wellbore, a sensor positioned in the wellbore for sensing a downhole condition in the wellbore, an actuator cooperative with the valve for moving the valve between at least two positions in timed relation to the downhole condition sensed by the sensor, and a detector positioned at the surface location for providing a measurement value at the surface location correlative to the time between the changes of the pressure of the fluid in the wellbore. The sensor is an inclination sensor for sensing an angle of inclination of a drill bit in the wellbore.
    • 用于将井下信息通过井筒传送到表面位置的压力释放编码系统具有阀,用于为在井眼中流动的流体提供流体限制;定位在井眼中的传感器,用于感测井眼中的井下状况;致动器与 所述阀用于在至少两个位置之间移动阀,所述至少两个位置与由所述传感器感测的所述井下状态定时关联,以及位于所述表面位置处的检测器,用于在所述表面位置处提供与所述压力变化之间的时间相关的测量值 的井眼中的液体。 传感器是用于感测钻孔中钻头的倾斜角度的倾角传感器。