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1. 发明申请

US20150233234A1 Methods and Apparatus to Detect Fluid Distributions 有权
标题翻译：检测流体分布的方法和装置
公开(公告)号：US20150233234A1
公开(公告)日：2015-08-20
申请号：US14404473
申请日：2013-05-30
申请人： Schlumberger Technology Corporation
发明人： Gaelle Jannin , Emmanuel Legendre , Edward Nichols
IPC分类号： E21B47/10 , G01V3/20 , E21B49/08 , G01V3/34
CPC分类号： E21B47/102 , E21B43/32 , E21B49/087 , E21B2049/085 , G01V3/20 , G01V3/34
摘要： A disclosed example method involves receiving a first signal transmitted into a reservoir from a production installation in a formation at a wellsite, and determining an apparent resistance of the reservoir based on the first signal. A distance between a fluid extraction tool and a fluid distribution is determined based on the apparent resistance.
摘要翻译：公开的示例性方法包括从在井场的地层中的生产设备接收从储存器传送的第一信号，以及基于第一信号确定储层的表观电阻。基于表观电阻确定流体提取工具与流体分布之间的距离。

2. 发明授权

US09746309B2 Remote field testing using a permeable core 有权
公开(公告)号：US09746309B2
公开(公告)日：2017-08-29
申请号：US14601091
申请日：2015-01-20
申请人： Schlumberger Technology Corporation
发明人： Edward Nichols
IPC分类号： G01B7/06 , G01V3/28 , E21B47/09 , G01V11/00
CPC分类号： G01B7/10 , E21B47/0905 , G01V3/28 , G01V11/002
摘要： Systems, apparatuses, and methods for measuring material thickness of one or more casings using a permeable core are presented. A magnetic field is generated using a permeable core and transmitted through one or more casings. Moreover, one or more receivers measure changes to the magnetic field.

3. 发明申请

US20170176630A1 DECONVOLUTION OF ELECTROMAGNETIC THICKNESS MEASUREMENT 审中-公开
公开(公告)号：US20170176630A1
公开(公告)日：2017-06-22
申请号：US15340258
申请日：2016-11-01
申请人： Schlumberger Technology Corporation
发明人： Martin David , Edward Nichols
IPC分类号： G01V3/38 , G01V3/26
CPC分类号： G01V3/38 , E21B47/0905 , G01V3/26 , G01V3/28
摘要： A tangible, non-transitory, machine-readable medium, includes machine-readable instructions to obtain a measurement relating to a first metal thickness of a casing by passing a transmitter and a receiver of an electromagnetic logging tool over a defect. The tangible, non-transitory, machine-readable medium, also includes machine-readable instructions to obtain a ghosting kernel of the electromagnetic logging tool including a response of the electromagnetic logging tool to a localized change in metal thickness from the first metal thickness of the casing to a second metal thickness, wherein the second thickness is different from the first metal thickness. The tangible, non-transitory, machine-readable medium, further includes machine-readable instructions to determine the metal thickness of the casing at the defect based on the measurement and the ghosting kernel of the electromagnetic logging tool.

4. 发明授权

US09625604B2 Analyzing subterranean formation with current source vectors 有权
公开(公告)号：US09625604B2
公开(公告)日：2017-04-18
申请号：US13928022
申请日：2013-06-26
申请人： Schlumberger Technology Corporation
发明人： Nestor Cuevas , David L. Alumbaugh , Edward Nichols
IPC分类号： G01V3/00 , G01V3/20 , G01V3/38 , G01V3/30
CPC分类号： G01V3/20 , G01V3/30 , G01V3/38
摘要： A method analyzes a subterranean formation. At least one property of a well casing in the subterranean formation is determined and a plurality of current source vectors at respective positions along a trajectory of the well casing are determined. The effect of the well casing is determined based upon the plurality of current source vectors and the at least one property of the well casing.

5. 发明申请

US20150338541A1 Electromagnetic Assessment of Multiple Conductive Tubulars 审中-公开
标题翻译：多导电管的电磁评估
公开(公告)号：US20150338541A1
公开(公告)日：2015-11-26
申请号：US14718020
申请日：2015-05-20
申请人： Schlumberger Technology Corporation
发明人： Edward Nichols , James J. Kohring , Rafael Vinit
IPC分类号： G01V3/26 , G01B7/06 , G01V1/40 , G01V3/34
CPC分类号： G01V3/26 , E21B41/02 , E21B47/082 , G01B7/06 , G01B7/10 , G01V1/40 , G01V3/34
摘要： Systems, apparatuses, and methods for measuring material thickness of multiple tubulars by placing a logging tool in a well with multiple conductive tubulars and generating an electromagnetic field that interacts with the tubulars. A logging tool obtains the measurements using one or more receivers. A monitoring system or the logging tool applies the measurements to a mathematical model that considers at least a transition zone and one or both of a near field zone and a remote field zone of the electromagnetic field that interacts with the multiple conductive tubulars. Furthermore, the monitoring system or the logging tool may ascertain a thickness of the one or more conductive tubulars using the mathematical model.
摘要翻译：通过将测井工具放置在具有多个导电管的井中并产生与管相互作用的电磁场来测量多个管的材料厚度的系统，装置和方法。测井工具使用一个或多个接收器获得测量结果。监测系统或测井工具将测量值应用于考虑至少一个过渡区域和与多个导电管道相互作用的电磁场的近场区域和远场区域中的一个或两个的数学模型。此外，监视系统或测井工具可以使用数学模型来确定一个或多个导电管的厚度。

6. 发明申请

US20160070018A1 Measurement Compensation Using Multiple Electromagnetic Transmitters 有权
标题翻译：使用多个电磁发射机的测量补偿
公开(公告)号：US20160070018A1
公开(公告)日：2016-03-10
申请号：US14784597
申请日：2014-04-15
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION
发明人： Edward Nichols , Emmanuel Legendre , Jean-Luc Le Calvez
IPC分类号： G01V3/28 , G01V3/38
CPC分类号： G01V3/28 , E21B47/00 , E21B47/0905 , G01V3/38
摘要： Systems, methods, and devices for compensating for environmental conditions on electromagnetic measurements are provided. For example, a downhole logging tool may include a first transmitter coil, a second transmitter coil, and a first receiver coil. The first transmitter coil may provide a first magnetic signal in a wellbore having a conductive casing. The second transmitter coil may provide a second magnetic signal in the wellbore. The first receiver may obtain a first measurement relating to the first magnetic signal and a second measurement relating to the second magnetic signal. The first receiver coil may be near enough to the first transmitter coil and the second transmitter coil to obtain measurements predominantly in the near field eddy current regime. A ratio of the first measurement and the second measurement may cancel environmental dependencies of the first receiver coil.
摘要翻译：提供了用于补偿电磁测量环境条件的系统，方法和设备。例如，井下测井工具可以包括第一发射器线圈，第二发射器线圈和第一接收器线圈。第一发射器线圈可以在具有导电壳体的井眼中提供第一磁信号。第二发射器线圈可以在井眼中提供第二磁信号。第一接收机可以获得与第一磁信号有关的第一测量和与第二磁信号有关的第二测量。第一接收器线圈可以靠近第一发射器线圈和第二发射器线圈以主要在近场涡流状态下获得测量。第一测量和第二测量的比率可以消除第一接收器线圈的环境依赖性。

7. 发明授权

US10324218B2 Electromagnetic assessment of multiple conductive tubulars 有权
公开(公告)号：US10324218B2
公开(公告)日：2019-06-18
申请号：US14718020
申请日：2015-05-20
申请人： Schlumberger Technology Corporation
发明人： Edward Nichols , James J. Kohring , Rafael Vinit
IPC分类号： G01V3/26 , G01B7/06 , G01V1/40 , G01V3/34 , E21B47/08 , E21B41/02
摘要： Systems, apparatuses, and methods for measuring material thickness of multiple tubulars by placing a logging tool in a well with multiple conductive tubulars and generating an electromagnetic field that interacts with the tubulars. A logging tool obtains the measurements using one or more receivers. A monitoring system or the logging tool applies the measurements to a mathematical model that considers at least a transition zone and one or both of a near field zone and a remote field zone of the electromagnetic field that interacts with the multiple conductive tubulars. Furthermore, the monitoring system or the logging tool may ascertain a thickness of the one or more conductive tubulars using the mathematical model.

8. 发明授权

US10012753B2 Measurement compensation using multiple electromagnetic transmitters 有权
公开(公告)号：US10012753B2
公开(公告)日：2018-07-03
申请号：US14784597
申请日：2014-04-15
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION
发明人： Edward Nichols , Emmanuel Legendre , Jean-Luc Le Calvez
IPC分类号： G01V3/28 , E21B47/00 , E21B47/09 , G01V3/38
CPC分类号： G01V3/28 , E21B47/00 , E21B47/0905 , G01V3/38
摘要： Systems, methods, and devices for compensating for environmental conditions on electromagnetic measurements are provided. For example, a downhole logging tool may include a first transmitter coil, a second transmitter coil, and a first receiver coil. The first transmitter coil may provide a first magnetic signal in a wellbore having a conductive casing. The second transmitter coil may provide a second magnetic signal in the wellbore. The first receiver may obtain a first measurement relating to the first magnetic signal and a second measurement relating to the second magnetic signal. The first receiver coil may be near enough to the first transmitter coil and the second transmitter coil to obtain measurements predominantly in the near field eddy current regime. A ratio of the first measurement and the second measurement may cancel environmental dependencies of the first receiver coil.

9. 发明授权

US09587485B2 Methods and apparatus to detect fluid distributions 有权
标题翻译：检测流体分布的方法和装置
公开(公告)号：US09587485B2
公开(公告)日：2017-03-07
申请号：US14404473
申请日：2013-05-30
申请人： Schlumberger Technology Corporation
发明人： Gaelle Jannin , Emmanuel Legendre , Edward Nichols
IPC分类号： G01V3/24 , E21B47/10 , G01V3/34 , G01V3/20 , E21B49/08
CPC分类号： E21B47/102 , E21B43/32 , E21B49/087 , E21B2049/085 , G01V3/20 , G01V3/34
摘要： A disclosed example method involves receiving a first signal transmitted into a reservoir from a production installation in a formation at a wellsite, and determining an apparent resistance of the reservoir based on the first signal. A distance between a fluid extraction tool and a fluid distribution is determined based on the apparent resistance.
摘要翻译：公开的示例性方法包括从在井场的地层中的生产设备接收从储存器传送的第一信号，以及基于第一信号确定储层的表观电阻。基于表观电阻确定流体提取工具与流体分布之间的距离。

10. 发明申请

US20150204648A1 Remote Field Testing Using A Permeable Core 有权
标题翻译：使用透光核心的远程现场测试
公开(公告)号：US20150204648A1
公开(公告)日：2015-07-23
申请号：US14601091
申请日：2015-01-20
申请人： Schlumberger Technology Corporation
发明人： Edward Nichols
IPC分类号： G01B7/06
CPC分类号： G01B7/10 , E21B47/0905 , G01V3/28 , G01V11/002
摘要： Systems, apparatuses, and methods for measuring material thickness of one or more casings using a permeable core are presented. A magnetic field is generated using a permeable core and transmitted through one or more casings. Moreover, one or more receivers measure changes to the magnetic field.
摘要翻译：提出了使用可渗透芯测量一个或多个外壳的材料厚度的系统，设备和方法。使用可渗透芯产生磁场并通过一个或多个壳体传输。此外，一个或多个接收器测量磁场的变化。

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