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11. 发明申请

US20080315883A1 Method of Calibrating an Azimuthal Inductive Cross-Coil or Tilted Coil Instrument 有权
标题翻译：校准方位感应交叉线圈或倾斜线圈仪器的方法
公开(公告)号：US20080315883A1
公开(公告)日：2008-12-25
申请号：US11767359
申请日：2007-06-22
申请人： Roland E. Chemali , Wallace H. Meyer , Gulamabbas Merchant , Tsili Wang
发明人： Roland E. Chemali , Wallace H. Meyer , Gulamabbas Merchant , Tsili Wang
IPC分类号： G01V3/28
CPC分类号： G01V3/28
摘要： A phase error in measurements made by a resistivity logging tool is estimated by positioning the tool above a conducting surface. Deviation of the measured phase difference between the transmitter and the receiver from 90° gives the phase error in the electronics. 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.
摘要翻译：通过将工具放置在导电表面上方来估计电阻率测井仪测量的相位误差。发射器和接收器之间的测量相位差的偏差从90°给出了电子设备中的相位误差。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。

12. 发明授权

US06957708B2 Electrical imaging in conductive and non-conductive mud 有权
公开(公告)号：US06957708B2
公开(公告)日：2005-10-25
申请号：US10616857
申请日：2003-07-08
申请人： Roland E. Chemali , Martin Folberth , Tsili Wang , Rene Ritter
发明人： Roland E. Chemali , Martin Folberth , Tsili Wang , Rene Ritter
IPC分类号： E21B17/10 , E21B47/00 , E21B47/01 , G01V3/30 , E21B47/12
CPC分类号： E21B17/1078 , E21B47/0002 , E21B47/01 , G01V3/30
摘要： The invention is a method and apparatus for determining an electrical property a formation surrounding a borehole with a measuring-while-drilling device. The apparatus an antenna configuration disposed along the outer face of an extendable stabilizer joined to a rotatable drill collar. Typically, two receivers and two transmitters are spaced along the longitudinal axis of the drill collar, with the two receivers spaced symmetrically in between the two transmitters. Alternatively, receivers and transmitters can be spaced along the circumference, possibly over multiple stabilizers. Multiple assemblies can be used. Data can be obtained with the transmitter-receiver assembly held in a stationary position or rotating circumferentially. Apparatus can be operated in a “broadside” configuration, an “endfire” configuration, or a configuration in which transmitter coils and receiver coils are oriented orthogonally to each other.

13. 发明授权

US07483793B2 Method of generating a deep resistivity image in LWD measurements 有权
标题翻译：在LWD测量中产生深电阻率图像的方法
公开(公告)号：US07483793B2
公开(公告)日：2009-01-27
申请号：US11489875
申请日：2006-07-20
申请人： Tsili Wang , Roland E. Chemali
发明人： Tsili Wang , Roland E. Chemali
IPC分类号： G01V1/40
CPC分类号： G01V3/28
摘要： A pseudo-image is produced by combining deep-reading azimuthally sensitive resistivity measurements with azimuthally insensitive resistivity measurements made by a multiple propagation resistivity tool. This image is useful in reservoir navigation. Features on the azimuthally sensitive measurements such as saddle-points and mid-points are diagnostic of bed geometry relative to the borehole.
摘要翻译：通过将深读方位敏感电阻率测量与由多传播电阻率工具进行的方位不敏感电阻率测量结合来产生伪图像。此图像在油藏导航中非常有用。诸如鞍点和中点等方位角敏感测量的特征是相对于钻孔的床几何形状的诊断。

14. 发明授权

US07994790B2 Electromagnetic and magnetostatic shield to perform measurements ahead of the drill bit 有权
标题翻译：电磁和静磁屏蔽在钻头前进行测量
公开(公告)号：US07994790B2
公开(公告)日：2011-08-09
申请号：US12401440
申请日：2009-03-10
申请人： Gregory B. Itskovich , Roland E. Chemali , Tsili Wang
发明人： Gregory B. Itskovich , Roland E. Chemali , Tsili Wang
IPC分类号： G01V3/08 , G01V3/10
CPC分类号： G01V3/28
摘要： A transmitter on a bottomhole assembly (BHA) is used for generating a transient electromagnetic signal in an earth formation. A pair of receivers on the BHA receive signals that are indicative of formation resistivity and distances to bed boundaries. A time dependent calibration factor or a time-independent calibration factor may be used to combine the two received signals and estimate the distance to bed boundaries that are unaffected by the drill conductive body. Further improvement can be obtained by using copper shielding.
摘要翻译：井底组件（BHA）上的发射器用于在地层中产生瞬态电磁信号。 BHA上的一对接收器接收指示地层电阻率和与床边界距离的信号。可以使用时间相关的校准因子或时间无关的校准因子来组合两个接收的信号并且估计不受钻孔导电体影响的床边界的距离。通过使用铜屏蔽可以进一步改善。

15. 发明申请

US20090243618A1 Method for Compensating Drill Pipe and Near-Borehole Effect on and Electronic Noise in Transient Resistivity Measurements 有权
标题翻译：在瞬态电阻率测量中补偿钻管和近钻孔效应和电子噪声的方法
公开(公告)号：US20090243618A1
公开(公告)日：2009-10-01
申请号：US12402592
申请日：2009-03-12
申请人： Tsili Wang , Roland E. Chemali
发明人： Tsili Wang , Roland E. Chemali
IPC分类号： G01V3/18
CPC分类号： G01V3/28
摘要： Transient measurements made at two spaced apart receivers responsive to separate activation of two transmitters symmetrically disposed about the two receivers. The transmitters and receivers are on an instrument having a conductive body induces currents in the earth formation. The effect of the conductive body is removed by using deconvolving the signal at one receiver using the measured signal at the other receiver. The symmetric transmitter configuration also enables compensation for receiver differences.
摘要翻译：在两个间隔开的接收器进行的瞬态测量响应于两个对称地布置在两个接收器周围的两个发射器的分离激活。发射器和接收器在具有导电体的仪器上引起地层中的电流。通过使用在另一个接收器处的测量信号在一个接收机处去除信号来消除导电体的影响。对称发射机配置还可以补偿接收机的差异。

16. 发明授权

US07375530B2 Method for signal enhancement in azimuthal propagation resistivity while drilling 有权
标题翻译：钻井时方位传播电阻率信号增强的方法
公开(公告)号：US07375530B2
公开(公告)日：2008-05-20
申请号：US11299053
申请日：2005-12-09
申请人： Roland E. Chemali , Paul Cairns , Tsili Wang , Wallace H. Meyer , Andrew G. Brooks , Otto N. Fanini , Gulamabbas Merchant
发明人： Roland E. Chemali , Paul Cairns , Tsili Wang , Wallace H. Meyer , Andrew G. Brooks , Otto N. Fanini , Gulamabbas Merchant
IPC分类号： G01V3/30
CPC分类号： G01V3/28 , E21B47/022
摘要： Cross-component measurements made at a plurality of toolface angles are processed to remove bias. The amplitude of the resulting sinusoid is used to estimate a distance to an interface in an earth formation.
摘要翻译：处理在多个工具面角度进行的横向成分测量以消除偏压。所得到的正弦曲线的振幅用于估计到地层中界面的距离。

17. 发明授权

US08332152B2 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：US08332152B2
公开(公告)日：2012-12-11
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： G01V1/40 , G01V3/18 , G01V9/00
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。

18. 发明申请

US20100312477A1 Automated Log Quality Monitoring Systems and Methods 审中-公开
标题翻译：自动日志质量监控系统和方法
公开(公告)号：US20100312477A1
公开(公告)日：2010-12-09
申请号：US12740262
申请日：2008-08-21
申请人： William C. Sanstrom , Roland E. Chemali
发明人： William C. Sanstrom , Roland E. Chemali
IPC分类号： G06F19/00 , G01V9/00
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。

19. 发明授权

US5446654A Shoulder effect logging method 失效
标题翻译：肩部效果测井方法
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
IPC分类号： G01V3/20 , G01V3/38 , G06F17/00 , E21B47/00 , G01V3/10
CPC分类号： G01V3/38 , G01V3/20
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。

20. 发明授权

US5038107A Method and apparatus for making induction measurements through casing 失效
标题翻译：通过套管进行感应测量的方法和装置
公开(公告)号：US5038107A
公开(公告)日：1991-08-06
申请号：US454605
申请日：1989-12-21
申请人： Stanley C. Gianzero , Roland E. Chemali , Paul Sinclair , Shey-Min Su
发明人： Stanley C. Gianzero , Roland E. Chemali , Paul Sinclair , Shey-Min Su
IPC分类号： G01V3/28
CPC分类号： G01V3/28
摘要： High resolution induction logs (28) are obtained through borehole casing (15) by magnetically saturating the casing (15), logging with a tool (10) having different transmitter (35a, 35b)-to-receiver (40) coil spacings, and determining the formation (30) conductivities as a function of the coil spacings, coil frequency, and phase difference between the signals at these spacings. The logging is preferably done at an intermediate frequency which gives good resolution but is little affected by the saturated casing.

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