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1. 发明授权

US12025767B2 Measuring spectral contributions of elements in regions in and about a borehole using a borehole spectroscopy tool 有权
公开(公告)号：US12025767B2
公开(公告)日：2024-07-02
申请号：US16972022
申请日：2019-06-03
申请人： Schlumberger Technology Corporation
发明人： James Anthony Grau , Jeffrey Miles , Laurent Mosse
IPC分类号： G01N23/222 , E21B47/003 , E21B47/113 , E21B49/08 , G01V5/10 , G01V5/22
CPC分类号： G01V5/101 , E21B47/003 , E21B47/114 , E21B49/0875 , G01N23/222 , G01V5/234
摘要： An earth formation traversed by a borehole is investigated. A borehole tool having a neutron source and a photon detector is located in the borehole and used to obtain photon scatter information in or about the borehole. A chemical element located in a region in or about the borehole is quantified by using the photon scatter information and at least two different spectral standards for that element.

2. 发明授权

US11073635B2 Compensated spectroscopy measurements 有权
公开(公告)号：US11073635B2
公开(公告)日：2021-07-27
申请号：US16442302
申请日：2019-06-14
申请人： Schlumberger Technology Corporation
发明人： Tong Zhou , David Rose , Jeffrey Miles
IPC分类号： G01V5/10
摘要： Elemental concentrations in subterranean formations may be determined using neutron spectroscopy. For example, neutrons may be emitted by a downhole tool into the formation and produce gamma rays via inelastic scattering of fast neutrons or capture of slow neutrons. The borehole surrounding a downhole tool may introduce artifacts in the neutron spectroscopy measurement. Embodiments of the present disclosure are directed to techniques that reduce artifacts signals in downhole tools that include one or multiple detectors based at least in part on the inelastic and capture measurements.

3. 发明授权

US09417355B2 Composition-matched inelastic or capture spectroscopy tool 有权
标题翻译：组合匹配非弹性或捕获光谱仪
公开(公告)号：US09417355B2
公开(公告)日：2016-08-16
申请号：US14144871
申请日：2013-12-31
申请人： Schlumberger Technology Corporation
发明人： Christian Stoller , Fabien Haranger , James Grau , Jeffrey Miles , Markus Berheide
IPC分类号： G01V5/10 , E21B47/00
CPC分类号： G01V5/101 , E21B47/00 , G01V5/10
摘要： Composition-matched downhole tools and methods for using such tools are provided. One such method includes emitting neutrons using a neutron source in the downhole tool to generate formation gamma rays in a surrounding formation. At the same time, however, some of the neutrons may interact with different parts of the downhole tool to form tool gamma rays. The gamma ray spectra of at least some of the formation gamma rays and the tool gamma rays may be detected using a gamma ray detector. The tool gamma rays from the different parts of the tool may have a substantially similar spectral shape. As such, a processor may be used to analyze the spectra of the tool gamma rays using a single tool background standard, thereby simplifying the analysis and improving the precision of the results.
摘要翻译：提供了组合匹配的井下工具和使用这种工具的方法。一种这样的方法包括在井下工具中使用中子源发射中子，以在周围地层中产生地层γ射线。然而，同时，一些中子可能与井下工具的不同部分相互作用，以形成工具伽马射线。可以使用γ射线检测器检测至少一些形成γ射线和工具伽马射线的伽马射线光谱。来自工具的不同部分的工具伽马射线可以具有基本相似的光谱形状。因此，处理器可以用于使用单个工具背景标准来分析工具伽马射线的光谱，从而简化分析并提高结果的精度。

4. 发明授权

US11774629B2 Systems and methods for determining the presence of cement behind at least one casing using spectroscopy measurement 有权
公开(公告)号：US11774629B2
公开(公告)日：2023-10-03
申请号：US17460825
申请日：2021-08-30
申请人： Schlumberger Technology Corporation
发明人： Pascal Millot , Adil Busaidy , Jeffrey Miles , Tong Zhou , Christian Stoller , David Rose , Richard Radtke
IPC分类号： G01V5/10 , E21B47/12
CPC分类号： G01V5/102 , E21B47/12 , G01V5/104
摘要： A presence of cement may be identified based on a downhole tool that may emit neutrons into a wellbore having at least one cement casing. The neutrons may interact with the particular material via inelastic scattering, inelastic neutron reactions, capture of neutrons and/or neutron activation through one of these reactions and cause a material to emit an energy spectrum of gamma rays, and wherein the downhole tool is configured to detect an energy spectrum of the gamma rays that is specific to at least one of a plurality of elements and associated a region within the wellbore. An amount of elements, such as calcium and silicon, may be determined from the gamma ray spectra that may indicate a present of cement within the wellbore.

5. 发明申请

US20190383962A1 COMPENSATED SPECTROSCOPY MEASUREMENTS 审中-公开
公开(公告)号：US20190383962A1
公开(公告)日：2019-12-19
申请号：US16442302
申请日：2019-06-14
申请人： Schlumberger Technology Corporation
发明人： Tong Zhou , David Rose , Jeffrey Miles
IPC分类号： G01V5/10
摘要： Elemental concentrations in subterranean formations may be determined using neutron spectroscopy. For example, neutrons may be emitted by a downhole tool into the formation and produce gamma rays via inelastic scattering of fast neutrons or capture of slow neutrons. The borehole surrounding a downhole tool may introduce artifacts in the neutron spectroscopy measurement. Embodiments of the present disclosure are directed to techniques that reduce artifacts signals in downhole tools that include one or multiple detectors based at least in part on the inelastic and capture measurements.

6. 发明授权

US10053979B2 Characterization of non-radioactive laced cement using logging while drilling and wireline nuclear measurements 有权
公开(公告)号：US10053979B2
公开(公告)日：2018-08-21
申请号：US15274277
申请日：2016-09-23
申请人： Schlumberger Technology Corporation
发明人： John Rasmus , Alex Ahrenst , Ana Peternell , Jeffrey Miles , Martinus Johannes Bernardus Bogaerts
IPC分类号： E21B49/00 , G01V5/10 , E21B33/14 , E21B43/26 , E21B43/267 , E21B47/00
CPC分类号： E21B49/00 , E21B33/14 , E21B43/267 , E21B47/0005 , G01V5/10 , G01V5/101
摘要： A method of performing a wellbore operation includes: circulating a doped wellbore fluid comprising a non-radioactive doped particulate material in a wellbore; and logging the wellbore with a logging-while-drilling tool to determine at least one characteristic of the doped wellbore fluid. A method of performing a wellbore operation includes: circulating a doped wellbore fluid comprising a non-radioactive doped particulate material in a wellbore; logging the wellbore with a logging tool; and determining a location of at least one fracture by elemental spectroscopy measurements.

7. 发明申请

US20150331141A1 Geological Constituent Estimation Using Calculated Spectra Relationships 有权
标题翻译：使用计算光谱关系的地质构成估计
公开(公告)号：US20150331141A1
公开(公告)日：2015-11-19
申请号：US14279843
申请日：2014-05-16
申请人： Schlumberger Technology Corporation
发明人： James Grau , Jeffrey Miles
IPC分类号： G01V5/12
CPC分类号： G01V5/12 , G01T7/005 , G01V5/101
摘要： A method for estimating at least one geological constituent may include obtaining a measured energy spectrum for the at least one geological constituent for a first borehole configuration, generating a calculated energy spectrum for the at least one geological constituent for the first borehole configuration, and generating a calculated energy spectrum for the at least one geological constituent for a second borehole configuration different than the first borehole configuration. The method may further include determining a relationship between the calculated energy spectra for the first and second borehole configurations, and generating an estimated energy spectrum for the at least one geological constituent for the second borehole configuration based upon the measured energy spectrum and the relationship between the calculated energy spectra for the first and second borehole configurations.
摘要翻译：用于估计至少一个地质构件的方法可以包括获得用于第一钻孔构造的至少一个地质构件的测量能谱，产生用于第一钻孔构造的至少一个地质构件的计算能谱，对于与第一钻孔构造不同的第二钻孔构造的至少一个地质构件的计算能谱。该方法还可以包括确定计算出的第一和第二钻孔配置的能量谱之间的关系，并且基于测量的能谱以及第二钻孔配置之间的关系，生成用于第二钻孔配置的至少一个地质构件的估计能谱计算第一和第二钻孔配置的能谱。

8. 发明申请

US20150185358A1 Composition-Matched Inelastic or Capture Spectroscopy Tool 有权
标题翻译：组合匹配非弹性或捕获光谱工具
公开(公告)号：US20150185358A1
公开(公告)日：2015-07-02
申请号：US14144871
申请日：2013-12-31
申请人： Schlumberger Technology Corporation
发明人： Christian Stoller , Fabien Haranger , James Grau , Jeffrey Miles , Markus Berheide
IPC分类号： G01V5/10
CPC分类号： G01V5/101 , E21B47/00 , G01V5/10
摘要： Composition-matched downhole tools and methods for using such tools are provided. One such method includes emitting neutrons using a neutron source in the downhole tool to generate formation gamma rays in a surrounding formation. At the same time, however, some of the neutrons may interact with different parts of the downhole tool to form tool gamma rays. The gamma ray spectra of at least some of the formation gamma rays and the tool gamma rays may be detected using a gamma ray detector. The tool gamma rays from the different parts of the tool may have a substantially similar spectral shape. As such, a processor may be used to analyze the spectra of the tool gamma rays using a single tool background standard, thereby simplifying the analysis and improving the precision of the results.
摘要翻译：提供了组合匹配的井下工具和使用这种工具的方法。一种这样的方法包括在井下工具中使用中子源发射中子，以在周围地层中产生地层γ射线。然而，同时，一些中子可能与井下工具的不同部分相互作用，以形成工具伽马射线。可以使用γ射线检测器检测至少一些形成γ射线和工具伽马射线的伽马射线光谱。来自工具的不同部分的工具伽马射线可以具有基本相似的光谱形状。因此，处理器可以用于使用单个工具背景标准来分析工具伽马射线的光谱，从而简化分析并提高结果的精度。

9. 发明申请

US20140286539A1 INVERSION-BASED WORKFLOW FOR PROCESSING NUCLEAR DENSITY IMAGES IN HIGH-ANGLE AND HORIZONTAL WELLS 有权
标题翻译：用于处理高角度和水平井中的核密度图像的基于反演的工作流
公开(公告)号：US20140286539A1
公开(公告)日：2014-09-25
申请号：US14352566
申请日：2012-10-24
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION
发明人： Sushil Shetty , Dzevat Omeragic , Tarek M. Habashy , John Rasmus , Jeffrey Miles
IPC分类号： G01V5/12
CPC分类号： G01V5/12 , G01V5/08
摘要： Methods and apparatus for characterizing a subterranean formation traversed by a wellbore including collecting data from the formation using a tool wherein the tool collects data to form an azimuthal image, characterizing a section of the formation comprising data and images acquired in a high angle wellbore section or horizontal wellbore section using a parametric model, and performing an inversion using apparent densities and volumetric photoelectric factor images to build a formation model wherein the inversion is tailored for high angle wellbore sections and/or horizontal wellbore sections.
摘要翻译：用于表征由井眼穿过的地下地层的方法和装置，包括使用工具收集来自地层的数据，其中工具收集数据以形成方位角图像，表征地层的包括在高角度井眼部分中获取的数据和图像的部分，使用参数模型进行水平井筒剖面，并使用表观密度和体积光电因子图像进行反演以建立地层模型，其中反演适用于大角度井眼段和/或水平井筒剖面。

10. 发明授权

US12061308B2 Porosity measurements from nuclear spectroscopy 有权
公开(公告)号：US12061308B2
公开(公告)日：2024-08-13
申请号：US17929446
申请日：2022-09-02
申请人： Schlumberger Technology Corporation
发明人： James Grau , Jeffrey Miles , Richard Radtke , Laurent Mosse , ZhanGuo Shi , David Rose
IPC分类号： G01V5/10
CPC分类号： G01V5/102
摘要： Systems and method presented herein enable the estimation of porosity using neutron-induced gamma ray spectroscopy. For example, the systems and methods presented herein include receiving, via a control and data acquisition system, data relating to energy spectra of gamma rays captured by one or more gamma ray detectors of a neutron-induced gamma ray spectroscopy logging tool. The method also includes deriving, via the control and data acquisition system, one or more spectral yields relating to one or more elemental components from the data relating to the energy spectra of the gamma rays. The method further includes estimating, via the control and data acquisition system, a measurement of porosity based on the one or more spectral yields relating to the one or more elemental components.

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