Method and system of an electromagnetic telemetry
    51.
    发明授权
    Method and system of an electromagnetic telemetry 有权
    电磁遥测方法与系统

    公开(公告)号:US08890710B2

    公开(公告)日:2014-11-18

    申请号:US13054819

    申请日:2008-07-31

    申请人: Paul F. Rodney

    发明人: Paul F. Rodney

    摘要: An electromagnetic telemetry repeater. At least some of the illustrative embodiments are methods comprising inducing an electrical signal along a metallic tubular (the electrical signal carrying the information and the inducing within a borehole beneath the ocean floor), sensing an electric field proximate to the ocean floor, sensing a magnetic field proximate to the ocean floor, recreating the information using one sensed field as indicative of the information and the other sensed field as indicative of the noise, and sending the information toward the ocean surface.

    摘要翻译: 电磁遥测中继器。 说明性实施例中的至少一些是包括沿着金属管(电信号承载信息和在海底下的钻孔内诱发)的电信号,感测靠近海底的电场,感测磁 接近海底的场,使用一个感测场再现信息,指示信息,另一个感测场指示噪声,并将信息发送到海洋表面。

    Estimating Adsorbed Gas Volume From NMR And Dielectric Logs
    53.
    发明申请
    Estimating Adsorbed Gas Volume From NMR And Dielectric Logs 有权
    从NMR和介电原子估计吸附气体体积

    公开(公告)号:US20140229112A1

    公开(公告)日:2014-08-14

    申请号:US13767721

    申请日:2013-02-14

    IPC分类号: G01V3/34 G01V3/26 G01V3/32

    摘要: Adsorbed gas in a formation may be estimated. Nuclear magnetic resonance (NMR) data for a subsurface geological formation is obtained, and at least a portion of the NMR data is corrected to produce corrected NMR data. A NMR-based estimate of formation porosity is determined using the corrected NMR data. Dielectric permittivity data for the subsurface geological formation is obtained, and a dielectric permittivity-based estimate of the formation water-filled porosity is determined using the dielectric permittivity data. A gas volume is determined using the determined NMR-based estimate of the formation porosity and the determined dielectric permittivity-based estimate of the formation water-filled porosity. The gas volume may be determined by subtracting the determined dielectric permittivity-based estimate of the formation water-filled porosity from the determined NMR-based estimate of the formation porosity. The gas volume per unit volume of the formation may be determined using an equation of state.

    摘要翻译: 可以估计地层中的吸附气体。 获得地下地质构造的核磁共振(NMR)数据,并校正至少一部分NMR数据,以产生校正的NMR数据。 使用校正的NMR数据确定基于NMR的地层孔隙度估计。 获得地下地质构造的介电常数数据,使用介电常数数据确定地层充水孔隙度的介电常数估计。 使用确定的基于NMR的地层孔隙度估计和基于介电介电常数的地层充水孔隙度的估计来确定气体体积。 气体体积可以通过从确定的基于NMR的地层孔隙度估计中减去确定的基于介电介电常数的地层填充孔隙度的估计来确定。 地层的单位体积的气体体积可以使用状态方程确定。

    Downhole Information Storage and Transmission
    54.
    发明申请
    Downhole Information Storage and Transmission 审中-公开
    井下信息存储与传输

    公开(公告)号:US20130307700A1

    公开(公告)日:2013-11-21

    申请号:US13896228

    申请日:2013-05-16

    IPC分类号: G01V3/34

    CPC分类号: G01V3/34 E21B47/12

    摘要: Apparatus and methods for downhole information storage and transmission are disclosed herein. An example method disclosed herein includes losslessly compressing at least a portion of information received from a portion of a downhole tool disposed in a wellbore. The information is compressed via a processor disposed on the downhole tool and communicatively coupled to the portion of the downhole tool. The example method further includes transmitting at least a portion of the compressed information to a receiver disposed at or near a surface of Earth.

    摘要翻译: 本文公开了井下信息存储和传输的装置和方法。 本文公开的示例性方法包括无损地压缩从设置在井筒中的井下工具的一部分接收的信息的至少一部分。 信息通过设置在井下工具上的处理器进行压缩,并且通信地联接到井下工具的部分。 该示例性方法还包括将压缩信息的至少一部分传送到设置在地球表面或附近的接收机。

    SYSTEM AND METHOD FOR STICK-SLIP CORRECTION
    56.
    发明申请
    SYSTEM AND METHOD FOR STICK-SLIP CORRECTION 有权
    系统和方法用于滑移校正

    公开(公告)号:US20130049982A1

    公开(公告)日:2013-02-28

    申请号:US13219125

    申请日:2011-08-26

    申请人: Andreas Hartmann

    发明人: Andreas Hartmann

    IPC分类号: G01V3/34

    摘要: A method of processing downhole measurement data includes: receiving formation measurement data generated by a downhole tool during a logging-while drilling operation over a selected time period; receiving a measured depth corresponding to the selected time period based on data taken at a surface location; receiving tool rotation data generated by measurements of a rotational rate of the downhole tool taken by a downhole sensor during the selected time period; calculating a new depth of the tool as a function of time over the selected time period based on a relationship between the tool rotation data and the measured depth; and correcting an original depth of the measurement data with the new depth.

    摘要翻译: 一种处理井下测量数据的方法包括:在所选择的时间段内在钻井操作期间接收由井下工具产生的地层测量数据; 基于在表面位置拍摄的数据接收对应于所选择的时间段的测量深度; 接收通过在所选择的时间段期间由井下传感器获取的井下工具的旋转速率的测量而产生的工具旋转数据; 基于所述刀具旋转数据和所测量的深度之间的关系,在所选择的时间段内计算所述刀具的新深度作为时间的函数; 并用新的深度校正测量数据的原始深度。

    Seismic data acquisition system and method for downhole use
    58.
    发明授权
    Seismic data acquisition system and method for downhole use 有权
    地震数据采集系统及井下使用方法

    公开(公告)号:US07535795B2

    公开(公告)日:2009-05-19

    申请号:US12128492

    申请日:2008-05-28

    IPC分类号: G01V3/34

    CPC分类号: G01V11/002

    摘要: A method and system for conducting a seismic survey by lowering a string of intelligent clampable sensor pods with 3-C sensors into a borehole. The string of pods is serially interconnected by a cable having a conductor pair which provides both power and data connectivity. The uppermost sensor pod is connected to a downhole telemetry and control module. The cables and pods use connectors to allow assembly, customization, repair, and disassembly on site. Each pod has an upper and a lower connector, a processor, and memory which is coupled to both the upper and the lower connectors. Each pod is capable of simultaneous and independent serial communications at each connector with the memory. The telemetry and control module is designed to query the pods to determine the system configuration. The telemetry and control module then simultaneously triggers all pods to acquire data, the pods storing the collected data locally in the memory. After data collection, the controller simultaneously signals the pods to immediately transfer data serially from the local memory to the next higher adjacent pod and receive data, if any, from the lower adjacent pod, if any, storing the received data in memory. The first data transferred from each pod is that data collected by its local sensors. Subsequent data originates from lower pods and is simply passed up the string of pods to the telemetry and control module. In other words, the pods communicate in a bucket brigade fashion.

    摘要翻译: 通过将具有3-C传感器的智能可夹式传感器盒串降到钻孔中进行地震勘测的方法和系统。 荚串通过具有导体对的电缆串联连接,该导线对提供电力和数据连接性。 最上面的传感器盒连接到井下遥测和控制模块。 电缆和荚使用连接器,以便现场组装,定制,修理和拆卸。 每个吊舱具有连接到上连接器和下连接器的上下连接器,处理器和存储器。 每个插槽都能够在与存储器的每个连接器上同时独立的串行通信。 遥测和控制模块设计用于查询吊舱以确定系统配置。 然后,遥测和控制模块同时触发所有荚获取数据,荚将存储收集的数据本地存储在存储器中。 在收集数据之后,控制器同时发信号通知信箱,以便立即将数据从本地存储器传输到下一个较高的相邻吊舱,并接收来自较低的相邻吊舱的数据(如果有的话),将数据存储在存储器中。 从每个pod传输的第一个数据是由其本地传感器收集的数据。 随后的数据来源于较低的pod,并且简单地将一串pods传递给遥测和控制模块。 换句话说,荚是以斗旅方式进行沟通。

    Apparatus and Method for Azimuthal MWD Resistivity Imaging at Multiple Depths of Investigation
    59.
    发明申请
    Apparatus and Method for Azimuthal MWD Resistivity Imaging at Multiple Depths of Investigation 有权
    多重深度方位角MWD电阻率成像装置及方法

    公开(公告)号:US20090085570A1

    公开(公告)日:2009-04-02

    申请号:US11865844

    申请日:2007-10-02

    IPC分类号: G01V3/30 G01V3/34

    CPC分类号: G01V3/28

    摘要: A combination of a shallow-reading and a deep-reading, azimuthally sensitive, multiple propagation devices is used for providing depth images the earth formation with different depth of investigation. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

    摘要翻译: 浅读取和深度读数,方位角敏感的多重传播设备的组合被用于为深度图像提供具有不同深度调查深度的地层。 要强调的是,该摘要被提供以符合要求摘要的规则,这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是,它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72(b)。

    Oscillating shear valve for mud pulse telemetry and associated methods of use
    60.
    发明授权
    Oscillating shear valve for mud pulse telemetry and associated methods of use 有权
    用于泥浆脉冲遥测的摆动剪切阀及相关使用方法

    公开(公告)号:US06975244B2

    公开(公告)日:2005-12-13

    申请号:US10223169

    申请日:2002-08-19

    摘要: An oscillating shear valve system for generating pressure fluctuations in a flowing drilling fluid comprising a stationary stator and an oscillating rotor, both with axial flow passages. The rotor oscillates in close proximity to the stator, at least partially blocking the flow through the stator and generating oscillating pressure pulses. The rotor passes through two zero speed positions during each cycle, facilitating rapid changes in signal phase, frequency, and/or amplitude facilitating enhanced, multivalent data encoding. The rotor is driven by a motorized gear drive. In one embodiment, a torsional spring is attached to the motor and the resulting spring mass system is designed to be near resonance at the desired pulse frequency. The system enables the use of multivalent encoding schemes for increasing data rates.

    摘要翻译: 一种用于在流动的钻井流体中产生压力波动的摆动剪切阀系统,其包括具有轴向流动通道的固定定子和振荡转子。 转子在定子附近振动,至少部分地阻塞通过定子的流动并产生振荡压力脉冲。 转子在每个循环期间通过两个零速度位置,促进信号相位,频率和/或振幅的快速变化,促进增强的多值数据编码。 转子由电动齿轮传动驱动。 在一个实施例中,扭转弹簧连接到电动机,并且所得到的弹簧质量系统被设计为在期望的脉冲频率处接近谐振。 该系统能够使用多值编码方案来提高数据速率。