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    FORMATION EVALUATION UTILIZING DUAL WAIT TIME NUCLEAR MAGNETIC RESONANCE
    1.
    发明申请
    FORMATION EVALUATION UTILIZING DUAL WAIT TIME NUCLEAR MAGNETIC RESONANCE 审中-公开
    利用双等待时间的核磁共振形成评价

    公开(公告)号：WO2016114835A2

    公开(公告)日：2016-07-21

    申请号：PCT/US2015057067

    申请日：2015-10-23

    申请人： BAKER HUGHES INC

    发明人： COMAN RADU ,  TIETJEN HOLGER ,  THERN HOLGER F ,  BLANZ MARTIN

    IPC分类号： G01V1/28

    CPC分类号： G01V3/32

    摘要： A system for measuring a property of fluid in an earth formation includes a downhole tool disposed in a borehole and configured to be movable within the borehole and a nuclear magnetic resonance (NMR) measurement device including a transmitter configured to emit at least two pulse trains of magnetic energy into the earth formation and a detector configured to detect a long-TW echo train and a short- TW echo train resulting from the at least two pulse trains. The system also includes a processor configured to combine the information from the at least two pulse trains and a rate of penetration of the downhole tool to form a measurement of the property.

    摘要翻译： 一种用于测量地层中的流体性质的系统包括设置在钻孔中并配置成可在钻孔内移动的井下工具和包括发射器的核磁共振（NMR）测量装置，所述发射器构造成发射至少两个脉冲串 将磁能引入到地层中;以及检测器，配置为检测由至少两个脉冲串产生的长TW回波串和短TW回波串。 该系统还包括处理器，该处理器被配置成组合来自至少两个脉冲串的信息和井下工具的穿透速率以形成对性质的测量。

    SYSTEM AND METHOD FOR MEASURING FORMATION TEMPERATURE AND/OR PRESSURE USING NUCLEAR QUADRUPOLE RESONANCE
    2.
    发明申请
    SYSTEM AND METHOD FOR MEASURING FORMATION TEMPERATURE AND/OR PRESSURE USING NUCLEAR QUADRUPOLE RESONANCE 审中-公开
    使用核四极共振来测量形成温度和/或压力的系统和方法

    公开(公告)号：WO2010025315A3

    公开(公告)日：2010-06-03

    申请号：PCT/US2009055274

    申请日：2009-08-28

    申请人： BAKER HUGHES INC ,  BLANZ MARTIN ,  EDWARDS CARL ,  KWAK HYUNG TAE

    发明人： BLANZ MARTIN ,  EDWARDS CARL ,  KWAK HYUNG TAE

    IPC分类号： E21B47/06 ,  G01V3/32

    CPC分类号： E21B47/065 ,  G01K11/006 ,  G01K13/00 ,  G01N24/081 ,  G01R33/441 ,  G01R33/4804

    摘要： A system for measuring at least one of a temperature and a pressure of an earth formation is disclosed. The system includes: a downhole tool disposed in a borehole and configured to be movable within the borehole; at least one nuclear quadrupole resonance (NQR) measurement device including a transmitter configured to emit a radiofrequency magnetic field having at least one selected frequency band into the earth formation to cause a component thereof to produce a NQR signal, and a detector configured to detect the NQR resonance signal; and a processor in operable communication with the measurement device and configured to generate NQR data from the NQR signal and calculate at least one of the temperature and the pressure of the earth formation therefrom. A method of measuring at least one of a temperature and a pressure of an earth formation is also enclosed.

    摘要翻译： 公开了一种用于测量地层的温度和压力中的至少一个的系统。 该系统包括：井下工具，该井下工具设置在钻孔中并被配置成可在井眼内移动; 的至少一个包括配置成发射具有至少一个所选择的频带进入地层，以使它们的组分以产生NQR信号的射频磁场的发送核四极共振（NQR）测量装置，并且被配置为检测所述的检测器 NQR共振信号; 以及处理器，其与测量装置可操作地通信并且被配置为根据NQR信号生成NQR数据并且从中计算温度和地层压力中的至少一个。 还包括测量地层的温度和压力中的至少一个的方法。

    CORRECTION FOR GAIN VARIATION DUE TO FAST CHANGING NMR SENSOR GAIN
    5.
    发明申请
    CORRECTION FOR GAIN VARIATION DUE TO FAST CHANGING NMR SENSOR GAIN 审中-公开
    由于快速变化的NMR传感器增益，增益变化的校正

    公开(公告)号：WO2012125935A3

    公开(公告)日：2012-12-27

    申请号：PCT/US2012029462

    申请日：2012-03-16

    申请人： BAKER HUGHES INC ,  BLANZ MARTIN ,  KRUSPE THOMAS

    发明人： BLANZ MARTIN ,  KRUSPE THOMAS

    IPC分类号： G01V3/32 ,  G01V3/34

    CPC分类号： G01N24/081 ,  G01R33/5659

    摘要： An apparatus for performing nuclear magnetic resonance (NMR) measurements of a material of interest includes an NMR tool and a processor. The NMR tool includes a transmitter antenna; a transmitter coupled to the transmitter antenna; and a receiver antenna configured to receive NMR signals in response to transmitted pulses of electromagnetic energy transmitted by the transmitter antenna. The NMR signals include at least a first signal and a second signal of a phase-alternated group of signals. The processor is configured to receive the NMR signals; receive a first system gain related to the first signal and a second system gain related to the second signal, each system gain being related to a system comprising the NMR tool and the material of interest; and calibrate the NMR signals using the first system gain and the second system gain.

    摘要翻译： 用于对感兴趣的材料进行核磁共振（NMR）测量的装置包括NMR工具和处理器。 NMR工具包括发射机天线; 耦合到发射机天线的发射机; 以及接收器天线，其被配置为响应于由所述发射机天线发送的电磁能量的传输脉冲而接收NMR信号。 NMR信号至少包括相位交替信号组的第一信号和第二信号。 处理器被配置为接收NMR信号; 接收与第一信号相关的第一系统增益和与第二信号相关的第二系统增益，每个系统增益与包括NMR工具和感兴趣材料的系统相关; 并使用第一系统增益和第二系统增益校准NMR信号。

    PROTECTION OF A MULTIDIRECTIONAL ANTENNA
    6.
    发明申请
    PROTECTION OF A MULTIDIRECTIONAL ANTENNA 审中-公开
    多方向天线的保护

    公开(公告)号：WO2009082530A3

    公开(公告)日：2010-10-21

    申请号：PCT/US2008079281

    申请日：2008-10-09

    申请人： BAKER HUGHES INC ,  BLANZ MARTIN

    发明人： BLANZ MARTIN

    IPC分类号： G01V3/18

    CPC分类号： G01V3/18

    摘要： The disclosure provides an apparatus and method for estimating one or more formation properties down hole. The apparatus includes a tool body that has a longitudinal axis. The tool body has a number of metallic pillars (401a, 401b, 401c) that are attached to or are an integral part of the tool body. Antenna wires may be positioned on the tool body between the pillars in a plurality of orientations to provide a multidirectional antenna. An insulating material is used to cover the antenna wires. A high magnetic permeability material is placed between the antenna wires and the tool body. The antenna may be configured to operate as a transmitter or as a receiver for a resistivity sensor or an NMR sensor.

    摘要翻译： 本公开提供了一种用于估计一个或多个地层属性井下的装置和方法。 该装置包括具有纵向轴线的工具主体。 工具主体具有多个金属支柱（401a，401b，401c），它们附接到工具主体上或作为工具主体的一部分。 天线可以以多个取向定位在支柱之间的工具主体上，以提供多向天线。 绝缘材料用于覆盖天线。 天线与工具主体之间放置高磁导率材料。 天线可以被配置为作为电阻率传感器或NMR传感器的发射器或接收器操作。

    PHASE-ALTERNATED CARR-PURCELL NMR ECHO SEQUENCE
    7.
    发明申请
    PHASE-ALTERNATED CARR-PURCELL NMR ECHO SEQUENCE 审中-公开
    相变的CARR-PURCELL NMR ECHO序列

    公开(公告)号：WO2005124396A3

    公开(公告)日：2006-12-14

    申请号：PCT/US2005020585

    申请日：2005-06-10

    申请人： BAKER HUGHES INC

    发明人： BLANZ MARTIN ,  KRUSPE THOMAS

    IPC分类号： G01V3/32 ,  G01R33/44 ,  G01V3/00

    CPC分类号： G01V3/32 ,  G01N24/081

    摘要： A phase alternated Carr Purcell (PACP) sequence is effective in removing DC offset from spin echo signals in earth formations. Modifications of PACP sequences, possibly in combination with other pulse sequences, can remove both DC offset and ringing. Such sequences may be used where the ringing is non-repeatable.

    摘要翻译： 相位交替的Carr Purcell（PACP）序列有效地去除地层中自旋回波信号的直流偏移。 可能与其他脉冲序列组合的PACP序列的修改可以去除DC偏移和振铃。 这种序列可以用于不可重复的振铃。

    REDUCTION OF MOTION ARTIFACTS IN NMR
    8.
    发明申请
    REDUCTION OF MOTION ARTIFACTS IN NMR 审中-公开
    减少运动制品在NMR

    公开(公告)号：WO2005109038A3

    公开(公告)日：2006-09-14

    申请号：PCT/US2005015613

    申请日：2005-05-05

    申请人： BAKER HUGHES INC ,  BLANZ MARTIN

    发明人： BLANZ MARTIN ,  KRUSPE THOMAS ,  ROTTENGATTER PETER ,  THERN HOLGER F ,  FECHETE RADU

    IPC分类号： G01V3/32

    CPC分类号： G01V3/32

    摘要： NMR spin echo signals, acquired on a MWD logging tool, are susceptible to errors if the magnet on the logging tool is moving relative to the earth magnetic flux density has a gradient. The errors can be corrected by having the excitation pulse cover a smaller or a larger volume than the refocusing pulses. Correction may also be made by selective saturation, or by echo averaging.

    摘要翻译： 在MWD测井工具上获取的NMR自旋回波信号如果测井工具上的磁体相对于地磁通密度移动，则会有误差。 可以通过使激发脉冲覆盖比重新聚焦脉冲更小或更大的体积来校正误差。 还可以通过选择性饱和或通过回波平均来进行校正。

    A METHOD AND APPARATUS FOR NMR MEASUREMENTS IN SMALL BOREHOLES AND IN UNDERBALANCED DRILLING
    10.
    发明申请
    A METHOD AND APPARATUS FOR NMR MEASUREMENTS IN SMALL BOREHOLES AND IN UNDERBALANCED DRILLING 审中-公开
    小孔和不平衡钻井中NMR测量的方法和装置

    公开(公告)号：WO2010129173A2

    公开(公告)日：2010-11-11

    申请号：PCT/US2010031903

    申请日：2010-04-21

    申请人： BAKER HUGHES INC ,  KRUSPE THOMAS ,  BLANZ MARTIN

    发明人： KRUSPE THOMAS ,  BLANZ MARTIN

    IPC分类号： G01V3/32 ,  E21B47/10 ,  G01V3/18 ,  G01V3/38

    CPC分类号： G01V3/32 ,  E21B47/10

    摘要： NMR spin echo signals are measured in a borehole during underbalanced drilling. A magnetic field gradient in the region of examination is selected to suppress an effect of a formation fluid flow on the produced signals, the fluid flow being caused by the excess of the formation pressure over the borehole fluid pressure. NMR measurements while drilling of small boreholes is done by combining signals from multiple regions of examination. By making measurements in a plurality of radially spaced regions, a radial profile of a formation property can be estimated. Additionally, a warning of a gas kick may be provided.

    摘要翻译： 在非平衡钻井期间，在钻孔中测量NMR自旋回波信号。 选择检查区域中的磁场梯度以抑制地层流体流对生成的信号的影响，流体流是由于地层压力超过井眼流体压力而引起的。 通过组合来自多个检查区域的信号来完成小钻孔钻探时的NMR测量。 通过在多个径向间隔的区域中进行测量，可以估计形成特性的径向轮廓。 此外，可以提供气体踢脚的警告。