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31. 发明授权

US07405563B2 Compensation of magnetic influence in a MWD system 有权
标题翻译： MWD系统中磁力影响的补偿
公开(公告)号：US07405563B2
公开(公告)日：2008-07-29
申请号：US11676462
申请日：2007-02-19
申请人： Thomas Kruspe , Volker Krueger , Martin Blanz , Roland E. Chemali
发明人： Thomas Kruspe , Volker Krueger , Martin Blanz , Roland E. Chemali
IPC分类号： G01V3/00
CPC分类号： G01V3/32 , E21B47/022 , G01N24/081 , G01R33/24 , G01R33/3808 , G01R33/383 , G01R33/3873 , G01R33/421 , G01R33/4808
摘要： The present disclosure provides a downhole tool that includes a magnetometer and a nuclear magnetic resonance (NMR) sensor. One or more compensating magnets are provided on the tool to cancel or offset the effect of the magnetic field of the magnets of the NMR sensor on the magnetometer measurements made during drilling of a wellbore. The compensating magnets may have the same magnetic field characteristics as the sensor magnets and may be made of the same material.
摘要翻译：本公开提供了一种井下工具，其包括磁力计和核磁共振（NMR）传感器。一个或多个补偿磁体设置在工具上以抵消或抵消NMR传感器的磁体的磁场对在井眼钻井期间进行的磁力计测量的影响。补偿磁体可以具有与传感器磁体相同的磁场特性，并且可以由相同的材料制成。

32. 发明授权

US5892460A Logging while drilling tool with azimuthal sensistivity 失效
标题翻译：采用方位角感光度测井
公开(公告)号：US5892460A
公开(公告)日：1999-04-06
申请号：US812216
申请日：1997-03-06
申请人： Al Jerabek , Roland E. Chemali
发明人： Al Jerabek , Roland E. Chemali
IPC分类号： G01V3/28 , G01V3/00
CPC分类号： G01V3/28
摘要： An azimuthally sensitive LWD tool is disclosed, comprising a transmitting antenna, a receiving antenna, wherein the receiving antenna is azimuthally focused so as to be more sensitive to changes in magnetic flux in a particular azimuthal segment of the antenna and means for measuring current induced in the receiving antenna as a result of current flowing through said transmitting antenna.
摘要翻译：公开了一种方位敏感的LWD工具，其包括发射天线，接收天线，其中接收天线被方位角聚焦，以便对天线的特定方位角段中的磁通量的变化更敏感，并且用于测量在作为电流流过所述发射天线的结果的接收天线。

33. 发明授权

US5191290A Logging apparatus for measurement of earth formation resistivity 失效
标题翻译：用于测量地层电阻率的测井装置
公开(公告)号：US5191290A
公开(公告)日：1993-03-02
申请号：US604302
申请日：1990-10-29
申请人： Stanley C. Gianzero , Roland E. Chemali
发明人： Stanley C. Gianzero , Roland E. Chemali
IPC分类号： G01V3/20
CPC分类号： G01V3/20
摘要： A logging apparatus for measurement of earth formation resistivity is disclosed. The apparatus includes an elongated sonde having an insulated section and an electrically isolated conductive pad mounted for lateral extension into contact with a borehole wall. The electrically isolated conductive pad includes a plurality of current electrodes disposed longitudinally along the pad and a return electrode disposed on the reverse face thereof. A focussing section is utilized to provide varying depths of investigation by electrode current to preferably permit measurement of earth formation resistivity in the mudcake, flush zone, and uninvaded formation. In a preferred embodiment of the present invention, the conductive pad includes a pair of hingeably mounted sections which permit the apparatus to accommodate varying radii of curvature of boreholes.
摘要翻译：公开了一种用于测量地层电阻率的测井装置。该装置包括具有绝缘部分的细长探空器和安装用于横向延伸以与钻孔壁接触的电隔离导电垫。电绝缘导电焊盘包括沿焊盘纵向设置的多个电流电极和设置在其反面上的返回电极。利用聚焦部分通过电极电流提供不同的调查深度，以优选地允许测量泥饼，冲洗区和非浸入式地层中的地层电阻率。在本发明的优选实施例中，导电垫包括一对可铰接地安装的部分，其允许该装置适应钻孔的变化的曲率半径。

34. 发明授权

US4646026A Method and apparatus for measuring resistivity of an earth formation 失效
标题翻译：测量地层电阻率的方法和装置
公开(公告)号：US4646026A
公开(公告)日：1987-02-24
申请号：US786184
申请日：1985-10-10
申请人： Roland E. Chemali , William C. Dirk
发明人： Roland E. Chemali , William C. Dirk
IPC分类号： G01V3/24 , G01V3/18
CPC分类号： G01V3/24
摘要： A method and apparatus are described for reducing "Groeningen" effect and other anomaly induced errors in resistivity measurements of an earth formation. Such errors are typically noted during resistivity measurements of an earth layer and are generally referred to as "Groeningen" effect or "casing" effect. A sonde having a plurality of voltage measuring electrodes and current emitting electrodes is provided and suspended in a borehold by means of a conductive cable. The sonde is attached to the conductive cable by means of a length of insulated cable and two reference electrodes are disposed above the sonde. A survey current and at least two focusing currents are emitted from the sonde at alternate times or on alternate frequencies and various voltages induced by each current are measured and utilized to calculate a corresponding set of transfer impedances for that current. By utilizing the calculated transfer impedances, the relationships of focusing currents to survey current which is necessary to properly focus the sonde may be calculated. With the relationship of the survey current and focusing currents thus defined, the apparent resistivity of the formation may be expressed as a function of the transfer impedances and the currents without the necessity of actually altering the amounts of focusing current. One of the focusing currents is operated at a very low frequency to minimize the effect of a resistive anomaly and, by measuring the voltages induced by that current between widely spaced electrodes, the sonde may be operated at a faster rate than would otherwise be possible.
摘要翻译：描述了一种用于降低“Groeningen”效应和其他异常导致的地层电阻率测量误差的方法和装置。通常在地层的电阻率测量过程中会注意到这种误差，通常将其称为“Groeningen”效应或“套管”效应。具有多个电压测量电极和电流发射电极的探空器通过导电电缆提供并悬挂在钻孔中。探头通过一定长度的绝缘电缆连接到导电电缆，并且两个参考电极设置在探空仪的上方。调查电流和至少两个聚焦电流在交替时间或交替频率从发射器发射，并且测量并利用由每个电流感应的各种电压来计算该电流的相应的传输阻抗集合。通过利用计算出的传递阻抗，可以计算聚焦电流与探测器正确对焦所需的测量电流的关系。利用如此定义的测量电流和聚焦电流的关系，可以将形成的视电阻率表示为转移阻抗和电流的函数，而不需要实际改变聚焦电流的量。聚焦电流之一以非常低的频率运行，以最小化电阻异常的影响，并且通过测量由间隔很远的电极之间的电流引起的电压，探头可以以比其它方式更快的速度运行。

35. 发明授权

US10041343B2 Micro-sonic density imaging while drilling systems and methods 有权
公开(公告)号：US10041343B2
公开(公告)日：2018-08-07
申请号：US13813343
申请日：2010-09-22
申请人： Roland E. Chemali , Moustafa E. Oraby
发明人： Roland E. Chemali , Moustafa E. Oraby
IPC分类号： E21B47/00 , G01V1/46
CPC分类号： E21B47/00 , G01V1/46
摘要： Various micro-sonic density imaging-while-drilling systems and methods are disclosed. In at least some forms, the micro-sonic logging tool is embodied in a drill collar having at least one stabilizer blade. One or more acoustic transmitters are set in a distal face of the stabilizer blade to generate acoustic waves. One or more receivers can also be set in the distal face of the stabilizer blade to detect P-waves and S-waves that have propagated through the formation making up the borehole wall. Processing circuitry measures the velocity or slowness of the acoustic waves and optionally associates the measured values with a spot on the borehole wall as identified. Multiple transmitters can be used if it is desired to obtain compensated measurements. The tool can further include a fluid cell to measure acoustical properties of the borehole fluid, which can be used to convert the formation slowness measurements into density measurements.

36. 发明申请

US20130125641A1 Micro-Sonic Density Imaging While Drilling Systems and Methods 审中-公开
标题翻译：微声波密度成像在钻井系统和方法
公开(公告)号：US20130125641A1
公开(公告)日：2013-05-23
申请号：US13813343
申请日：2010-09-22
申请人： Roland E. Chemali , Moustafa E. Oraby
发明人： Roland E. Chemali , Moustafa E. Oraby
IPC分类号： E21B47/00
CPC分类号： E21B47/00 , G01V1/46
摘要： Various micro-sonic density imaging-while-drilling systems and methods are disclosed. In at least some forms, the micro-sonic logging tool is embodied in a drill collar having at least one stabilizer blade. One or more acoustic transmitters are set in a distal face of the stabilizer blade to generate acoustic waves. One or more receivers can also be set in the distal face of the stabilizer blade to detect P-waves and S-waves that have propagated through the formation making up the borehole wall. Processing circuitry measures the velocity or slowness of the acoustic waves and optionally associates the measured values with a spot on the borehole wall as identified. Multiple transmitters can be used if it is desired to obtain compensated measurements. The tool can further include a fluid cell to measure acoustical properties of the borehole fluid, which can be used to convert the formation slowness measurements into density measurements.
摘要翻译：公开了各种微声波密度成像同时钻井系统和方法。在至少一些形式中，微声波测井工具体现在具有至少一个稳定器叶片的钻铤中。一个或多个声发射器设置在稳定器叶片的远侧面中以产生声波。还可以在稳定器叶片的远侧面设置一个或多个接收器，以检测已经传播通过构成井壁的地层的P波和S波。处理电路测量声波的速度或速度，并且可选地将测量值与所确定的井壁上的点相关联。如果需要获得补偿测量，可以使用多个发射器。该工具还可以包括用于测量井眼流体的声学性质的流体池，其可用于将地层缓慢度测量值转换成密度测量值。

37. 发明申请

US20120169841A1 Downhole Optical Imaging Tools and Methods 有权
标题翻译：井下光学成像工具和方法
公开(公告)号：US20120169841A1
公开(公告)日：2012-07-05
申请号：US13391419
申请日：2010-09-24
申请人： Roland E. Chemali , Ron Dirksen
发明人： Roland E. Chemali , Ron Dirksen
IPC分类号： H04N7/00 , H04N13/02 , H04N7/18
CPC分类号： E21B47/0002
摘要： A disclosed downhole optical imaging tool includes a light source and a camera enclosed within a tool body having at least two sidewall windows. A first window transmits light from the light source to a target region in the borehole, while a second window passes reflected light from the target region to the internal camera. The target region is spaced along the borehole away from the second window in a direction opposite the first window. In some embodiments, this configuration is provided by angling the first and second windows with respect to the sidewall, or by shaping the windows to cast and receive light from a “forward” direction. Some tool embodiments include motion and/or orientation sensors that are employed by a processor to combine separately captured images into a panoramic borehole image. It can be employed during drilling operations employing air or a substantially transparent liquid as a drilling fluid.
摘要翻译：所公开的井下光学成像工具包括光源和封闭在具有至少两个侧壁窗口的工具主体内的照相机。第一窗口将光从光源传输到钻孔中的目标区域，而第二窗口将来自目标区域的反射光传递到内部照相机。目标区域沿着与第一窗口相反的方向沿着钻孔与第二窗口间隔开。在一些实施例中，通过使第一和第二窗口相对于侧壁倾斜，或者通过使窗户成形来投射和接收来自“向前”方向的光来提供该配置。一些工具实施例包括运动和/或定向传感器，其被处理器采用以将分离的捕获的图像组合成全景钻孔图像。它可以用于采用空气或基本上透明的液体作为钻井液的钻井操作。

38. 发明授权

US07973532B2 Downhole spread spectrum induction instruments 有权
标题翻译：井下扩频感应仪
公开(公告)号：US07973532B2
公开(公告)日：2011-07-05
申请号：US12048966
申请日：2008-03-14
申请人： Stanislav W. Forgang , Roland E. Chemali
发明人： Stanislav W. Forgang , Roland E. Chemali
IPC分类号： G01V3/30
CPC分类号： G01V3/28
摘要： A plurality of transmitters on a logging tool are activated simultaneously at substantially the same frequency. When the transmitter outputs are phase-modulated using a mutually orthogonal set of modulating functions, it is possible to recover, from the signal at each receiver, a response corresponding to each of the transmitters.
摘要翻译：在测井工具上的多个发射器以基本上相同的频率同时被激活。当使用相互正交的调制函数集发射机输出进行相位调制时，可以从每个接收机处的信号中恢复对应于每个发射机的响应。

39. 发明申请

US20090240435A1 Method and apparatus for eliminating drill effect in pulse induction measurements 有权
标题翻译：消除脉冲感应测量中钻头效应的方法和装置
公开(公告)号：US20090240435A1
公开(公告)日：2009-09-24
申请号：US12077338
申请日：2008-03-19
申请人： Gregory B. Itskovich , Roland E. Chemali
发明人： Gregory B. Itskovich , Roland E. Chemali
IPC分类号： G01V3/38
CPC分类号： G01V3/28
摘要： A method and apparatus provide a time-dependent calibration to essentially eliminate pipe effect in pulse-induction logging while drilling. Use of two receivers to provide calibration and measurement information allows determination of formation properties in a downhole environment while eliminating the effect of tool effects.
摘要翻译：一种方法和装置提供时间依赖性校准，以在钻孔时基本上消除脉冲诱导测井中的管道效应。使用两个接收器提供校准和测量信息可以在井下环境中确定地层特性，同时消除工具效应的影响。

40. 发明申请

US20080247273A1 APPARATUS AND METHODS FOR SELF-POWERED COMMUNICATION AND SENSOR NETWORK 有权
标题翻译：自动通信和传感器网络的设备和方法
公开(公告)号：US20080247273A1
公开(公告)日：2008-10-09
申请号：US12132497
申请日：2008-06-03
申请人： Roland E. Chemali , Volker Krueger , Peter Aronstam
发明人： Roland E. Chemali , Volker Krueger , Peter Aronstam
IPC分类号： E21B47/16
CPC分类号： E21B41/0085 , E21B17/028 , E21B47/122 , E21B47/123 , E21B47/14 , E21B47/16 , G01V11/002
摘要： A system for communicating between a first location and a second location comprises a jointed tubular string having a first section and a second section connected at a connection joint, with the tubular string having a fluid in an internal passage thereof. A first acoustic transducer is mounted in the internal passage of the first section proximate the connection joint, and a second acoustic transducer is mounted in the internal passage of the second section proximate the connection joint. A signal transmitted from the first location to the second location is transmitted across the connection joint as an acoustic signal in the fluid from the first acoustic transducer to the second acoustic transducer.
摘要翻译：用于在第一位置和第二位置之间连通的系统包括具有连接在连接接头处的第一部分和第二部分的连接的管状管柱，其中管状管线在其内部通道中具有流体。第一声学换能器安装在靠近连接接头的第一部分的内部通道中，并且第二声学换能器安装在靠近连接接头的第二部分的内部通道中。从第一位置发送到第二位置的信号通过连接接头作为来自第一声换能器的流体中的声信号传递到第二声换能器。

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