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公开(公告)号：US10353111B2
公开(公告)日：2019-07-16
申请号：US12740262
申请日：2008-08-21
IPC分类号： G01V11/00
摘要： Disclosed systems and methods provide automated log quality monitoring, thereby enabling fast, on-site determination of log quality by logging engineers as well as re-assurance to interpreters faced with geologically-improbable features in the logs. Such uses can provide early detection of logging issues, increase confidence in acquired logs, reduce unnecessary duplication of effort, and improve the reputation of the logging company. In at least some embodiments, log monitoring software applies a comparison function to axially-spaced (and/or azimuthally-spaced) sensors. The comparison function can be, inter alia, cross-correlation, mutual information, mean-square error, and ratio image uniformity, each of which can be determined as a function of a sliding window position to indicate regions wherein the log quality falls below a threshold value. It is not necessary for the log sensors to be of the same type, e.g., resistivity image sensors.
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公开(公告)号：US09765609B2
公开(公告)日：2017-09-19
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
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.
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3.发明授权Multi-component resistivity logging tool with multiple antennas using common antenna grooves 有权具有多个天线的多分量电阻率测井仪使用公共天线槽公开(公告)号：US07839149B2
公开(公告)日：2010-11-23
申请号：US12350099
申请日：2009-01-07
申请人： Tsili Wang , John A. Signorelli , Sheng Fang , Roland E. Chemali
发明人： Tsili Wang , John A. Signorelli , Sheng Fang , Roland E. Chemali
IPC分类号： G01V3/10
CPC分类号： G01V3/28
摘要： The disclosure provides a resistivity tool for use in a wellbore, wherein at least two orthogonal antennas are located at the same or substantially the same location of the tool. A single set of vertically aligned grooves is provided for the at least two orthogonal antennas. Each antenna may be configured to operate as a transmitter or receiver. A tool with collocated antennas may be used to provide azimuthally sensitive measurements even if the tool is non-rotating.
摘要翻译： 本公开提供了一种用于井眼的电阻率工具，其中至少两个正交天线位于工具的相同或基本相同的位置。 为至少两个正交天线提供单组垂直排列的凹槽。 每个天线可以被配置为作为发射机或接收机工作。 即使工具不旋转，也可以使用具有并置天线的工具来提供方位灵敏度测量。
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公开(公告)号：US20090230967A1
公开(公告)日：2009-09-17
申请号：US12048966
申请日：2008-03-14
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。
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公开(公告)号：US20090179647A1
公开(公告)日：2009-07-16
申请号：US12350099
申请日：2009-01-07
申请人： Tsili Wang , John A. Signorelli , Sheng Fang , Roland E. Chemali
发明人： Tsili Wang , John A. Signorelli , Sheng Fang , Roland E. Chemali
IPC分类号： G01V3/28
CPC分类号： G01V3/28
摘要： The disclosure provides a resistivity tool for use in a wellbore, wherein at least two orthogonal antennas are located at the same or substantially the same location of the tool. A single set of vertically aligned grooves is provided for the at least two orthogonal antennas. Each antenna may be configured to operate as a transmitter or receiver. A tool with collocated antennas may be used to provide azimuthally sensitive measurements even if the tool is non-rotating.
摘要翻译： 本公开提供了一种用于井眼的电阻率工具，其中至少两个正交天线位于工具的相同或基本相同的位置。 为至少两个正交天线提供单组垂直排列的凹槽。 每个天线可以被配置为作为发射机或接收机工作。 即使工具不旋转，也可以使用具有并置天线的工具来提供方位灵敏度测量。
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公开(公告)号：US07114565B2
公开(公告)日：2006-10-03
申请号：US10771675
申请日：2004-02-04
申请人： Robert A. Estes , Roland E. Chemali
发明人： Robert A. Estes , Roland E. Chemali
IPC分类号： E21B45/00
CPC分类号： E21B47/0002 , E21B44/00 , E21B47/024 , E21B47/026 , G01V5/04
摘要： This invention provides a measurement-while-drilling (MWD) downhole assembly for use in drilling boreholes which utilizes directional formation evaluation devices on a rotating assembly in conjunction with toolface orientation sensors. The data from the toolface orientation sensors are analyzed by a processor and toolface angle measurements are determined at defined intervals. Formation evaluation sensors operate substantially independently of the toolface orientation sensors and measurements of the formation evaluation sensors are analyzed in combination with the determined toolface angle to obtain formation parameters.
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公开(公告)号：US5448171A
公开(公告)日：1995-09-05
申请号：US164625
申请日：1993-12-08
CPC分类号： G01V3/28
摘要： The present disclosure is directed to a method of obtaining a different radial depth of investigation from an induction log. A typical induction log is moved along a well borehole to obtain two logs one being at a medium depth and the other being at a larger depth of investigation. By utilization of data from the two curves, the present disclosure enables determination of a log at some other depth i.e. a different radius of investigation which is between the medium and deep depths of investigation.
摘要翻译： 本公开涉及从感应日志获得不同径向深度的方法。 典型的感应日志沿着井眼移动，以获得两个原木，一个处于中等深度，另一个处于较大的勘探深度。 通过利用来自两条曲线的数据，本公开使得能够在某个其他深度即在调查深度和深度之间的不同调查范围内确定对数。
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8.发明授权Method and apparatus for eliminating drill effect in pulse induction measurements 有权消除脉冲感应测量中钻头效应的方法和装置公开(公告)号：US08332152B2
公开(公告)日：2012-12-11
申请号：US12077338
申请日：2008-03-19
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。
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公开(公告)号：US20100312477A1
公开(公告)日：2010-12-09
申请号：US12740262
申请日：2008-08-21
CPC分类号： G01V11/00
摘要： Disclosed systems and methods provide automated log quality monitoring, thereby enabling fast, on-site determination of log quality by logging engineers as well as re-assurance to interpreters faced with geologically-improbable features in the logs. Such uses can provide early detection of logging issues, increase confidence in acquired logs, reduce unnecessary duplication of effort, and improve the reputation of the logging company. In at least some embodiments, log monitoring software applies a comparison function to axially-spaced (and/or azimuthally-spaced) sensors. The comparison function can be, inter alia, cross-correlation, mutual information, mean-square error, and ratio image uniformity, each of which can be determined as a function of a sliding window position to indicate regions wherein the log quality falls below a threshold value. It is not necessary for the log sensors to be of the same type, e.g., resistivity image sensors.
摘要翻译： 公开的系统和方法提供自动日志质量监控，从而通过记录工程师快速现场确定日志质量，并重新确认面临日志中地质不可能特征的口译员。 这种用途可以提前检测日志记录问题，提高对采集日志的信心，减少不必要的重复工作量，提高采伐公司的声誉。 在至少一些实施例中，日志监视软件将比较功能应用于轴向间隔（和/或方位角间隔）的传感器。 比较功能可以是互相关，互信息，均方误差和比例图像均匀性，其中每个可以被确定为滑动窗口位置的函数，以指示其中对数质量低于 阈值。 对数传感器不必是相同的类型，例如电阻率图像传感器。
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公开(公告)号：US5446654A
公开(公告)日：1995-08-29
申请号：US914076
申请日：1992-07-16
申请人： Roland E. Chemali , David O. Torres
发明人： Roland E. Chemali , David O. Torres
摘要： In a resistivity log, a curve is obtained showing the values of resistivity where adjacent beds impact the measured resistivity. The curve as a function of well depth is first converted into a rectangularized curve so that the interfaces of the adjacent strata are located, and by a suitable number of iterations, a correction factor is applied. The corrected rectangular log is obtained with a correction coefficient computed at each depth. For each computation, the impact of all the strata within a specified depth window is considered, while strata beyond that window are simplified by representing the strata beyond the window with single equivalent bed values to reduce the number of computations required. This then provides a resistivity log which is substantially free of shoulder bed effect.
摘要翻译： 在电阻率测井中，获得曲线，表示相邻的床撞击测得的电阻率的电阻率值。 作为井深的函数的曲线首先被转换为矩形曲线，使得相邻层的界面位于，并且通过适当数量的迭代应用校正因子。 使用在每个深度处计算的校正系数获得校正的矩形日志。 对于每个计算，考虑在指定深度窗口内的所有层的影响，而通过用单个等效床值表示超过窗口的层来简化超过该窗口的层，以减少所需的计算次数。 然后提供基本上没有肩峰效应的电阻率测井。
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