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1.发明申请Method and apparatus for cement bond evaluation using transversely polarized shear waves 有权使用横向极化剪切波进行水泥粘结评估的方法和装置公开(公告)号：US20050190648A1
公开(公告)日：2005-09-01
申请号：US10787628
申请日：2004-02-26
CPC分类号： G01V1/50
摘要： A method and apparatus useful to determine the integrity of a cement bond log disposed in the annular space between a casing and a wellbore. The method and apparatus produce a transversely polarized shear wave and emit the wave through the casing and into the wellbore. The transversely polarized shear wave attenuates upon passage through the cement bond log. The integrity of the cement bond log can be determined through an analysis and evaluation of the attenuation results.
摘要翻译： 一种用于确定设置在壳体和井眼之间的环形空间中的水泥结合对数的完整性的方法和装置。 该方法和装置产生横向偏振的剪切波，并通过壳体并发射到井眼中。 横向极化剪切波在通过水泥粘结测井时衰减。 可以通过对衰减结果的分析和评估来确定水泥结合对数的完整性。
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公开(公告)号：US06850168B2
公开(公告)日：2005-02-01
申请号：US10045263
申请日：2001-11-07
CPC分类号： G01V1/44
摘要： The logging tool of this invention includes a transmitter conveyed on a drilling collar for exciting a quadrupole signal in a borehole being drilled by a drill bit and a receiver for receiving the signal. The transmitter is operated at a frequency below the cut-off frequency of the quadrupole collar mode. The received signal consists primarily of the formation quadrupole mode which, at low frequencies, has a velocity that approaches the formation shear velocity. The transmitter, in one embodiment, consists of eight equal sectors of a piezoelectric cylinder mounted on the rim of the drilling collar. The value of the cut-off frequency is primarily dependent on the thickness of the drilling collar. Alternatively, the transmitter may be operated to produce both the collar mode and the formation mode and a processor may be used to filter out the collar mode.
摘要翻译： 本发明的测井工具包括在钻铤上传送的发射器，用于激发由钻头钻的钻孔中的四极杆信号和用于接收信号的接收器。 发射机的工作频率低于四极杆模式的截止频率。 接收的信号主要由形成四极杆模式组成，在低频时，其具有接近地层剪切速度的速度。 在一个实施例中，发射器由安装在钻铤的边缘上的压电圆柱体的八个相等的部分组成。 截止频率的值主要取决于钻铤的厚度。 或者，发射机可以被操作以产生领模和形成模式，并且处理器可以用于过滤掉套环模式。
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公开(公告)号：US20090000859A1
公开(公告)日：2009-01-01
申请号：US11770377
申请日：2007-06-28
申请人： Tsili Wang , Xiao Ming Tang
发明人： Tsili Wang , Xiao Ming Tang
IPC分类号： G01V1/44
CPC分类号： G01V1/46
摘要： A downhole acoustic logging tool uses a phased-array of transmitters and/or receivers to improve the signal level of compressional waves generated by the transmitters and propagating in the formation. 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： 井下声波测井工具使用发射器和/或接收器的相控阵来改善发射器产生的压缩波的信号水平并在地层中传播。 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。
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4.发明授权Method of using electrical and acoustic anisotropy measurements for fracture identification 有权使用电气和声学各向异性测量进行断裂识别的方法公开(公告)号：US06925031B2
公开(公告)日：2005-08-02
申请号：US10317457
申请日：2002-12-12
申请人： Berthold Kriegshauser , Otto N. Fanini , Richard A. Mollison , Liming Yu , Tsili Wang , Xiao Ming Tang
发明人： Berthold Kriegshauser , Otto N. Fanini , Richard A. Mollison , Liming Yu , Tsili Wang , Xiao Ming Tang
摘要： Measurements made by a cross-dipole acoustic logging tool in a borehole are processed to determine the principal directions of azimuthal anisotropy of a subsurface formation. Measurements indicative of azimuthal resistivity variations are also made with a multicomponent induction logging tool. These electrical measurements are processed using the principal direction determined from acoustic measurements to give an estimate of azimuthal resistivity variations. Based on modeling results, azimuthal resistivity variations are interpreted to estimate a fracture depth in the rock for known fluids therein.
摘要翻译： 对钻孔中的交叉偶极声波测井仪进行测量，以确定地下地层方位角各向异性的主要方向。 也可以用多组分感应测井工具进行指示方位电阻率变化的测量。 使用从声学测量确定的主方向来处理这些电测量，以给出方位电阻率变化的估计。 基于模拟结果，方位角电阻率变化被解释为估计岩石中已知流体的断裂深度。
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公开(公告)号：US06985086B2
公开(公告)日：2006-01-10
申请号：US10958221
申请日：2004-10-04
IPC分类号： G01V3/00
CPC分类号： G01V1/44
摘要： The logging tool of this invention includes a transmitter conveyed on a drilling collar for exciting a quadrupole signal in a borehole being drilled by a drill bit and a receiver for receiving the signal. The transmitter is operated at a frequency below the cut-off frequency of the quadrupole collar mode. The received signal consists primarily of the formation quadrupole mode which, at low frequencies, has a velocity that approaches the formation shear velocity. The transmitter, in one embodiment, consists of eight equal sectors of a piezoelectric cylinder mounted on the rim of the drilling collar. The value of the cut-off frequency is primarily dependent on the thickness of the drilling collar. Alternatively, the transmitter may be operated to produce both the collar mode and the formation mode and a processor may be used to filter out the collar mode.
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公开(公告)号：US06930616B2
公开(公告)日：2005-08-16
申请号：US10753509
申请日：2004-01-08
摘要： Array quadrupole data obtained in a LWD environment are processed to determine the shear velocity of an earth formation taking into account dispersion effects caused by the logging tool. When this processing is done in an azimuthally anisotropic formation, the shear velocity that is obtained is the slow shear velocity. When 4C (cross-dipole) data are also obtained, then both the fast and slow shear velocities of an azimuthally anisotropic formation can be obtained.
摘要翻译： 在LWD环境中获得的阵列四极杆数据被处理以确定考虑由测井工具引起的分散效应的地层的剪切速度。 当这种处理在方位角各向异性地层中进行时，所获得的剪切速度是缓慢的剪切速度。 当也获得4C（交叉偶极）数据时，可以获得方位角各向异性地层的快速和慢速剪切速度。
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7.发明授权Method and apparatus for cement bond evaluation using transversely polarized shear waves 有权使用横向极化剪切波进行水泥粘结评估的方法和装置公开(公告)号：US07525872B2
公开(公告)日：2009-04-28
申请号：US10787628
申请日：2004-02-26
CPC分类号： G01V1/50
摘要： A method and apparatus useful to determine the integrity of a cement bond log disposed in the annular space between a casing and a wellbore. The method and apparatus produce a transversely polarized shear wave and emit the wave through the casing and into the wellbore. The transversely polarized shear wave attenuates upon passage through the cement bond log. The integrity of the cement bond log can be determined through an analysis and evaluation of the attenuation results.
摘要翻译： 一种用于确定设置在壳体和井眼之间的环形空间中的水泥结合对数的完整性的方法和装置。 该方法和装置产生横向偏振的剪切波，并通过壳体并发射到井眼中。 横向极化剪切波在通过水泥粘结测井时衰减。 可以通过对衰减结果的分析和评估来确定水泥结合对数的完整性。
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公开(公告)号：US08625390B2
公开(公告)日：2014-01-07
申请号：US12858626
申请日：2010-08-18
申请人： Tsili Wang , Paul Boonen
发明人： Tsili Wang , Paul Boonen
IPC分类号： G01V1/40
CPC分类号： G01V1/46 , G01V2210/47
摘要： A method for making acoustic logging measurements includes grouping received acoustic waveforms into one of a plurality of groups, each group being representative of a measured borehole condition (e.g., a range of measured standoff values and/or a range of measured azimuth angles). The waveforms stored in at least one of the groups are stacked so as to obtain an averaged waveform. The averaged waveform may be further processed, for example, via a semblance algorithm to obtain at least one acoustic wave slowness.
摘要翻译： 用于进行声学测井测量的方法包括将接收到的声波形分组成多个组中的一个组，每组代表测量的井眼状况（例如，测量的间隔值的范围和/或测量的方位角的范围）。 存储在至少一个组中的波形被堆叠以获得平均波形。 可以例如经由相似算法进一步处理平均波形以获得至少一个声波慢度。
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9.发明授权公开(公告)号：US08547788B2
公开(公告)日：2013-10-01
申请号：US12781266
申请日：2010-05-17
申请人： Tsili Wang , Paul Boonen
发明人： Tsili Wang , Paul Boonen
IPC分类号： G01V1/00
CPC分类号： G01V1/50
摘要： A method for determining an acoustic anisotropy of a subterranean formation includes measuring acoustic wave slownesses at three or more toolface angles while rotating a logging while drilling tool in a borehole. Compressional, shear, and/or guided wave slownesses may be measured. The measured slownesses are fit to a mathematical model to obtain maximum and minimum slownesses. The maximum and minimum slownesses are processed to determine the acoustic anisotropy of the formation.
摘要翻译： 用于确定地下地层的声学各向异性的方法包括在钻孔中钻探工具的同时旋转测井同时测量三个或更多个工具面角度的声波慢度。 可以测量压缩，剪切和/或引导的波慢。 测量的慢度适合于获得最大和最小慢度的数学模型。 处理最大和最小慢度以确定地层的声学各向异性。
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公开(公告)号：US08542553B2
公开(公告)日：2013-09-24
申请号：US12700546
申请日：2010-02-04
申请人： Tsili Wang
发明人： Tsili Wang
IPC分类号： G01V1/00
CPC分类号： G01V1/46
摘要： A downhole acoustic measurement tool includes at least one transmitter longitudinally spaced apart from a non-uniformly spaced longitudinal array of acoustic receivers. The array has a non-uniform spacing such that a first spacing between a first pair of consecutive acoustic receivers in the array is not equal to a second spacing between a second pair of consecutive acoustic receivers in the array. Non-uniform spacing of the receivers in the array reduces aliasing when the received waveforms are processed, for example, to obtain semblance data.
摘要翻译： 井下声学测量工具包括与声学接收器的不均匀间隔的纵向阵列纵向间隔开的至少一个发射器。 阵列具有不均匀的间隔，使得阵列中的第一对连续声接收器之间的第一间隔不等于阵列中第二对连续声接收器之间的第二间隔。 阵列中的接收器的不均匀间隔在处理接收的波形时减少了混叠，例如获得相似数据。
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