专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08947093B2 Electromagnetic survey using naturally occurring electromagnetic fields as a source 有权
标题翻译：使用天然电磁场作为源的电磁测量
公开(公告)号：US08947093B2
公开(公告)日：2015-02-03
申请号：US12645965
申请日：2009-12-23
申请人： David Alumbaugh , Edward Nichols , Nestor Cuevas
发明人： David Alumbaugh , Edward Nichols , Nestor Cuevas
IPC分类号： G01V3/08
CPC分类号： G01V3/088
摘要： Methods and related systems are described for measuring naturally occurring electromagnetic fields both at the earth's surface as well as downhole. These fields originate from currents in the ionosphere above the earth, and are the same fields as employed by known magnetotelluric geophysical methods based on surface measurements. Some embodiments are especially useful in horizontal wells that are uncased at depth, although some embodiments are also useful in normal vertical wells that are both uncased or cased with a conductive liner. The method includes receiving downhole electromagnetic survey data of the naturally occurring electromagnetic fields obtained using a downhole receiver deployed at a first location in a borehole. A second set of electromagnetic survey data of the naturally occurring electromagnetic fields is also received that has been obtained using a receiver deployed at a second location. A transfer function is estimated between the first and second locations for portions of the electromagnetic fields based on the two sets of electromagnetic survey data.
摘要翻译：描述了用于测量地球表面以及井下天然存在的电磁场的方法和相关系统。这些场源于地球上电离层的电流，并且是与基于表面测量的已知大地电磁地球物理方法所采用的相同的场。一些实施例在深度未被消除的水平井中是特别有用的，尽管一些实施例也可用于使用导电衬套未被套管或套管的正常垂直井中。该方法包括接收使用部署在钻孔中的第一位置处的井下接收器获得的天然存在的电磁场的井下电磁勘测数据。还接收到使用部署在第二位置处的接收器获得的第二组自然发生的电磁场的电磁勘测数据。基于两组电磁勘测数据，估计电磁场部分的第一和第二位置之间的传递函数。

2. 发明授权

US08614578B2 Attenuation of electromagnetic signals passing through conductive material 有权
标题翻译：通过导电材料的电磁信号的衰减
公开(公告)号：US08614578B2
公开(公告)日：2013-12-24
申请号：US12641898
申请日：2009-12-18
申请人： Guozhong Gao , H. Frank Morrison , Hong Zhang , Richard A. Rosthal , David Alumbaugh , Cyrille Levesque
发明人： Guozhong Gao , H. Frank Morrison , Hong Zhang , Richard A. Rosthal , David Alumbaugh , Cyrille Levesque
IPC分类号： G01V3/10 , G01V3/18
CPC分类号： G01V3/28
摘要： The present disclosure relates to determining the attenuation of an electromagnetic signal passing through a conductive material. An antenna is provided and placed in relatively close proximity to the conductive material. An alternating current is passed through the antenna and the impedance of the antenna is measured. The attenuation is determined using the measured impedance. A single frequency measurement may be made, or multiple measurements using different frequencies may be made. Grouped parameters based on properties of the material and the frequency of the current are used to relate the coil impedance to the attenuation. A current frequency for which the ratio of the antenna's resistive part of the impedance to the angular frequency of the current is substantially insensitive to at least one of the parameters is preferred.
摘要翻译：本公开涉及确定通过导电材料的电磁信号的衰减。提供天线并将其放置在相对靠近导电材料的位置。交流电流通过天线，测量天线的阻抗。使用测量的阻抗确定衰减。可以进行单个频率测量，或者可以进行使用不同频率的多个测量。基于材料性质和电流频率的分组参数用于将线圈阻抗与衰减相关联。阻抗的电阻部分与电流的角频率的比率对于至少一个参数基本上不敏感的当前频率是优选的。

3. 发明申请

US20100321023A1 ATTENUATION OF ELECTROMAGNETIC SIGNALS PASSING THROUGH CONDUCTIVE MATERIAL 有权
标题翻译：电磁信号通过导电材料的衰减
公开(公告)号：US20100321023A1
公开(公告)日：2010-12-23
申请号：US12641898
申请日：2009-12-18
申请人： Guozhong Gao , H. Frank Morrison , Hong Zhang , Richard A. Rosthal , David Alumbaugh , Cyrille Levesque
发明人： Guozhong Gao , H. Frank Morrison , Hong Zhang , Richard A. Rosthal , David Alumbaugh , Cyrille Levesque
IPC分类号： G01V3/10
CPC分类号： G01V3/28
摘要： The present disclosure relates to determining the attenuation of an electromagnetic signal passing through a conductive material. An antenna is provided and placed in relatively close proximity to the conductive material. An alternating current is passed through the antenna and the impedance of the antenna is measured. The attenuation is determined using the measured impedance. A single frequency measurement may be made, or multiple measurements using different frequencies may be made. Grouped parameters based on properties of the material and the frequency of the current are used to relate the coil impedance to the attenuation. A current frequency for which the ratio of the antenna's resistive part of the impedance to the angular frequency of the current is substantially insensitive to at least one of the parameters is preferred.
摘要翻译：本公开涉及确定通过导电材料的电磁信号的衰减。提供天线并将其放置在相对靠近导电材料的位置。交流电流通过天线，测量天线的阻抗。使用测量的阻抗确定衰减。可以进行单个频率测量，或者可以进行使用不同频率的多个测量。基于材料性质和电流频率的分组参数用于将线圈阻抗与衰减相关联。阻抗的电阻部分与电流的角频率的比率对于至少一个参数基本上不敏感的当前频率是优选的。

4. 发明申请

US20100305863A1 Characterizing an Earth Subterranean Structure by Iteratively Performing Inversion Based on a Function 有权
标题翻译：基于函数迭代执行反演来表征地球地下结构
公开(公告)号：US20100305863A1
公开(公告)日：2010-12-02
申请号：US12791655
申请日：2010-06-01
申请人： Aria Abubakar , Tarek Habashy , David Alumbaugh , Ping Zhang , Guozhong Gao , Jianguo Liu
发明人： Aria Abubakar , Tarek Habashy , David Alumbaugh , Ping Zhang , Guozhong Gao , Jianguo Liu
IPC分类号： G01V3/18 , G06F19/00
CPC分类号： G01V11/00 , G01V3/38
摘要： To characterize an earth subterranean structure using a measurement assembly including electromagnetic (EM) receivers and one or more EM sources, measured voltage data collected by EM receivers in response to transmission by one or more EM sources is received. Based on a model, predicted EM data is computed. Inversion is iteratively performed according to a function that computes a difference between the measured voltage data and a product of a term containing the predicted EM data and a term containing distortion data that accounts at least for distortion effect by an environment of the measurement assembly. The inversion is iteratively performed to solve for parameters of the model and the distortion data.
摘要翻译：为了使用包括电磁（EM）接收器和一个或多个EM源的测量组件来表征地球地下结构，接收由EM接收机响应于一个或多个EM源的传输而收集的测量电压数据。基于模型，计算预测的EM数据。根据计算测量电压数据与包含预测的EM数据的术语的乘积和包含至少考虑到测量组件的环境的失真效应的失真数据的术语的项的迭代执行反转。迭代执行反演以求解模型的参数和失真数据。

5. 发明授权

US07565244B2 Method and system for removing effects of conductive casings and wellbore and surface heterogeneity in electromagnetic imaging surveys 有权
标题翻译：用于消除电磁成像测量中导电壳体和井筒的影响和表面异质性的方法和系统
公开(公告)号：US07565244B2
公开(公告)日：2009-07-21
申请号：US11768975
申请日：2007-06-27
申请人： David Alumbaugh , Ping Zhang , Edward Nichols , Frank Morrison , Aria Abubakar , Tarek Habashy
发明人： David Alumbaugh , Ping Zhang , Edward Nichols , Frank Morrison , Aria Abubakar , Tarek Habashy
IPC分类号： G01V1/40
CPC分类号： G01V3/30
摘要： Characterizing a reservoir with electromagnetic imaging surveys includes normalizing measured voltage data by transmitter moment, sorting the normalized voltage data into common receiver profiles, densely resampling transmitter locations using common positions for the receiver profiles, coarsely resampling the data at discreet transmitter locations, defining a starting model for inversion, weighting the data by a factor, converting the normalized voltage data to ratios, calculating a conductivity image using a ratio inversion method, and verifying that an inversion has converged and the image is geologically reasonable. The image can then be displayed. The invention can be used for cross-well, surface-to-borehole, and borehole-to-surface measurements by which the effects of steel casing are reduced.
摘要翻译：用电磁成像测量表征储层包括通过发射机时刻归一化测量的电压数据，将归一化电压数据分类为公共接收机配置文件，使用接收机配置文件的公共位置密集地重新采样发射机位置，在偏心的发射机位置粗略重新采样数据，用于反演的模型，通过因子对数据进行加权，将归一化电压数据转换为比率，使用比例反演方法计算电导率图像，以及验证反演已经收敛并且图像在地理上是合理的。然后可以显示图像。本发明可用于交叉井，井对井和钻孔到地面的测量，通过该测量钢壳的作用降低。

6. 发明授权

US08886463B2 Characterizing an earth subterranean structure by iteratively performing inversion based on a function 有权
标题翻译：通过基于函数迭代地执行反演来表征地球地下结构
公开(公告)号：US08886463B2
公开(公告)日：2014-11-11
申请号：US12791655
申请日：2010-06-01
申请人： Aria Abubakar , Tarek Habashy , David Alumbaugh , Ping Zhang , Guozhong Gao , Jianguo Liu
发明人： Aria Abubakar , Tarek Habashy , David Alumbaugh , Ping Zhang , Guozhong Gao , Jianguo Liu
IPC分类号： G01V1/28 , G01V3/38 , G01V11/00
CPC分类号： G01V11/00 , G01V3/38
摘要： To characterize an earth subterranean structure using a measurement assembly including electromagnetic (EM) receivers and one or more EM sources, measured voltage data collected by EM receivers in response to transmission by one or more EM sources is received. Based on a model, predicted EM data is computed. Inversion is iteratively performed according to a function that computes a difference between the measured voltage data and a product of a term containing the predicted EM data and a term containing distortion data that accounts at least for distortion effect by an environment of the measurement assembly. The inversion is iteratively performed to solve for parameters of the model and the distortion data.
摘要翻译：为了使用包括电磁（EM）接收器和一个或多个EM源的测量组件来表征地球地下结构，接收由EM接收机响应于一个或多个EM源的传输而收集的测量电压数据。基于模型，计算预测的EM数据。根据计算测量电压数据与包含预测的EM数据的术语的乘积和包含至少考虑到测量组件的环境的失真效应的失真数据的术语的项的迭代执行反转。迭代执行反演以求解模型的参数和失真数据。

7. 发明申请

US20120191353A1 MODEL BASED WORKFLOW FOR INTERPRETING DEEP-READING ELECTROMAGNETIC DATA 审中-公开
标题翻译：用于解读深度读数电磁数据的基于模型的工作流程
公开(公告)号：US20120191353A1
公开(公告)日：2012-07-26
申请号：US13438763
申请日：2012-04-03
申请人： MICHAEL WILT , HERVE DENACLARA , PING ZHANG , DAVID ALUMBAUGH , THOR JOHNSEN
发明人： MICHAEL WILT , HERVE DENACLARA , PING ZHANG , DAVID ALUMBAUGH , THOR JOHNSEN
IPC分类号： G06F19/00 , G01V3/12 , G06G7/48
CPC分类号： G06F17/5018 , G01V3/38 , G01V99/00 , G06F2217/16
摘要： One embodiment of the invention involves a model-based method of inverting electromagnetic data associated with a subsurface area that includes developing a three-dimensional electromagnetic property model of the area, and restricting changes that may be made to the model during the electromagnetic data inversion process. Other related embodiments of the inventive method are also described and claimed.
摘要翻译：本发明的一个实施例涉及一种反转与地下区域相关的电磁数据的基于模型的方法，其包括开发该区域的三维电磁特性模型，并且限制在电磁数据反演过程期间可能对该模型进行的改变。还描述和要求保护本发明方法的其它相关实施例。

8. 发明授权

US07657391B2 Electromagnetically detecting thin resistive bodies in shallow water and terrestrial environments 失效
标题翻译：在浅水和陆地环境中电磁检测薄电阻体
公开(公告)号：US07657391B2
公开(公告)日：2010-02-02
申请号：US11457623
申请日：2006-07-14
申请人： David Alumbaugh , Jiuping Chen , Frank Morrison
发明人： David Alumbaugh , Jiuping Chen , Frank Morrison
IPC分类号： G01V3/00 , G06F19/00
CPC分类号： G01V3/12 , G01V3/083 , Y02A90/344
摘要： A technique includes performing first electromagnetic field measurements to obtain a first set of data and performing second electromagnetic field measurements to obtain a second set of data. The first set of data is relatively sensitive to an effect caused by an air layer boundary and is relatively insensitive to the presence of a resistive body. The second set of data is relatively insensitive to the effect and is relatively sensitive to the presence of the resistive body. The technique includes combining the first and second sets of data to generate a third set of data, which is relatively insensitive to the effect and is relatively sensitive to the presence of the resistive body.
摘要翻译：一种技术包括执行第一电磁场测量以获得第一组数据并执行第二电磁场测量以获得第二组数据。第一组数据对于由空气层边界引起的影响相对敏感，并且对电阻体的存在相对不敏感。第二组数据对效果相对不敏感，并且对电阻体的存在相对敏感。该技术包括组合第一组数据和第二组数据以产生对该效果相对不敏感且对电阻体的存在相对敏感的第三组数据。

9. 发明申请

US20090302852A1 MEASURING CASING ATTENUATION COEFFICIENT FOR ELECTRO-MAGNETICS MEASUREMENTS 失效
标题翻译：用于电磁测量的测量振幅衰减系数
公开(公告)号：US20090302852A1
公开(公告)日：2009-12-10
申请号：US12416411
申请日：2009-04-01
申请人： Cyrille Levesque , David Alumbaugh , Richard Rosthal , Hong Zhang
发明人： Cyrille Levesque , David Alumbaugh , Richard Rosthal , Hong Zhang
IPC分类号： G01V3/12
CPC分类号： G01V3/30
摘要： Methods and related systems are described for making an electromagnetic induction survey of a formation surrounding a cased section of a borehole. An electromagnetic transmitter and/or receiver are deployed into the cased section of the borehole. One or more additional devices are used to measure the properties of a conductive casing relating to conductivity, thickness and magnetic permeability. A casing coefficient is then calculated that can then be used for the processing of the deep-sensing induction measurements.
摘要翻译：描述了用于对围绕钻孔的套管部分的地层进行电磁感应测量的方法和相关系统。电磁发射器和/或接收器部署在钻孔的套管部分中。一个或多个附加装置用于测量与导电性，厚度和磁导率有关的导电外壳的性能。然后计算套管系数，然后可以将其用于深感应感应测量的处理。

10. 发明申请

US20090157316A1 METHOD AND SYSTEM FOR REMOVING EFFECTS OF CONDUCTIVE CASINGS AND WELLBORE AND SURFACE HETEROGENEITY IN ELECTROMAGNETIC IMAGING SURVEYS 有权
标题翻译：导电壳和井眼和电磁成像测量中表面异质性的影响的方法和系统
公开(公告)号：US20090157316A1
公开(公告)日：2009-06-18
申请号：US12142408
申请日：2008-06-19
申请人： David Alumbaugh , Ping Zhang , Edward Nichols , Frank Morrison , Aria Abubakar , Tarek Habashy
发明人： David Alumbaugh , Ping Zhang , Edward Nichols , Frank Morrison , Aria Abubakar , Tarek Habashy
IPC分类号： G01V3/38 , G01V3/30
CPC分类号： G01V3/30
摘要： Characterizing a reservoir with electromagnetic imaging surveys includes normalizing measured voltage data by transmitter moment, sorting the normalized voltage data into common receiver profiles, densely resampling transmitter locations using common positions for the receiver profiles, coarsely resampling the data at discreet transmitter locations, defining a starting model for inversion, weighting the data by a factor, converting the normalized voltage data to ratios, calculating a conductivity image using a ratio inversion method, and verifying that an inversion has converged and the image is geologically reasonable. The image can then be displayed. The invention can be used for cross-well, surface-to-borehole, borehole-to-surface, and single-well (borehole-to-borehole) measurements by which the effects of steel casing are reduced.
摘要翻译：用电磁成像测量表征储层包括通过发射机时刻归一化测量的电压数据，将归一化电压数据分类为公共接收机配置文件，使用接收机配置文件的公共位置密集地重新采样发射机位置，在偏心的发射机位置粗略重新采样数据，用于反演的模型，通过因子对数据进行加权，将归一化电压数据转换为比率，使用比例反演方法计算电导率图像，以及验证反演已经收敛并且图像在地理上是合理的。然后可以显示图像。本发明可用于横向井，井对井，钻井到地面和单井（井眼到井眼）的测量，通过该测量钢壳的作用减小。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式