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公开(公告)号：US11747508B2
公开(公告)日：2023-09-05
申请号：US16940492
申请日：2020-07-28
Applicant: Schlumberger Technology Corporation
Inventor： Siddharth Misra , Dean Homan , Yuteng Jin , John Rasmus
Abstract: Aspects of the present disclosure relate to a method for determining a wettability of one or more types of solid particles within a geological formation. The method may include receiving a plurality of electromagnetic measurements within a frequency range from an electromagnetic well-logging tool. The method may also include determining a contact angle associated with at least one type of solid particles within the geological formation using the electromagnetic measurements.
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公开(公告)号：US20180372905A1
公开(公告)日：2018-12-27
申请号：US16120843
申请日：2018-09-04
Applicant: Schlumberger Technology Corporation
Inventor： Dean M. Homan , John Rasmus , Gerald Minerbo , Siddharth Misra , Aditya Gupta
Abstract: An electromagnetic measurement tool for making multi-frequency, full tensor, complex, electromagnetic measurements includes a triaxial transmitter and a triaxial receiver deployed on a tubular member. An electronic module is configured to obtain electromagnetic measurements at four or more distinct frequencies. The measurement tool may be used for various applications including obtaining a resistivity of sand layers in an alternating shale-sand formation; computing a dielectric permittivity, a conductivity anisotropy, and/or a permittivity anisotropy of a formation sample; and/or identifying formation mineralization including discriminating between pyrite and graphite inclusions and/or computing weight percent graphite and/or pyrite in the formation sample.
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公开(公告)号：US20160187521A1
公开(公告)日：2016-06-30
申请号：US14827632
申请日：2015-08-17
Applicant: Schlumberger Technology Corporation
Inventor： Dean Homan , John Rasmus , Gerald Minerbo , Siddharth Misra , Aditya Gupta
Abstract: An electromagnetic measurement tool for making multi-frequency, full tensor, complex, electromagnetic measurements includes a triaxial transmitter and a triaxial receiver deployed on a tubular member. An electronic module is configured to obtain electromagnetic measurements at four or more distinct frequencies. The measurement tool may be used for various applications including obtaining a resistivity of sand layers in an alternating shale-sand formation; computing a dielectric permittivity, a conductivity anisotropy, and/or a permittivity anisotropy of a formation sample; and/or identifying formation mineralization including discriminating between pyrite and graphite inclusions and/or computing weight percent graphite and/or pyrite in the formation sample.
Abstract translation: 用于制造多频，全张力，复杂的电磁测量的电磁测量工具包括三轴发射器和部署在管状构件上的三轴接收器。 电子模块被配置为以四个或更多个不同的频率获得电磁测量。 测量工具可用于各种应用，包括在交替的页岩砂层中获得砂层的电阻率; 计算形成样品的介电常数，导电率各向异性和/或介电常数各向异性; 和/或识别地层矿化，包括区分黄铁矿和石墨夹杂物和/或计算地层样品中石墨和/或黄铁矿的重量百分比。
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公开(公告)号：US20210165121A1
公开(公告)日：2021-06-03
申请号：US17175985
申请日：2021-02-15
Applicant: Schlumberger Technology Corporation
Inventor： Siddharth Misra , Dean Homan , Yuteng Jin , John Rasmus
IPC: G01V3/30 , G01V3/26 , E21B47/092
Abstract: Aspects of the present disclosure relate to a method for determining a contact angle, a wettability, or both, of one or more types of solid particles within a geological formation. The method may include identifying a relative conductive of the type of solid particles and identifying a frequency range for one or more EM measurements. The method may also include determining a contact angle associated with at least one type of solid particles within the geological formation using the electromagnetic measurements corresponding to the frequency range.
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公开(公告)号：US20160139293A1
公开(公告)日：2016-05-19
申请号：US14944312
申请日：2015-11-18
Applicant: Schlumberger Technology Corporation
Inventor： Siddharth Misra , John Rasmus , Dean Homan , Carlos Torres-Verdin
Abstract: A method for determining a level of organic maturity of a shale gas formation includes inverting multifrequency complex conductivity data to estimate a volume fraction of graphite, turbostatic carbon nanostructures, and pyrite. The inversion is validated using estimates of the volume fraction of graphite, turbostatic carbon nanostructures, and pyrite. The volume fraction of graphite and turbostatic carbon nanostructures is correlated to a level of organic maturity log of the shale gas formation. The level of organic maturity log is validated using sulfur content obtained from pyrolysis or vitrinite reflectance. A variation of an electromagnetic response due to the volume fraction of graphite, turbostatic carbon nanostructures, and pyrite is quantified. The electromagnetic response is modified by removing the quantified variation to obtain resistivity and permittivity values.
Abstract translation: 用于确定页岩气形成层的有机成熟度的方法包括反演多频复合电导率数据以估计石墨，涡旋型碳纳米结构和黄铁矿的体积分数。 使用石墨，涡轮增压碳纳米结构和黄铁矿体积分数的估计验证反演。 石墨和涡轮增压碳纳米结构的体积分数与页岩气形成的有机成熟度对数相关。 有机成熟度的水平通过从裂解或镜质体反射率获得的硫含量来验证。 量化了由石墨，涡旋型碳纳米结构和黄铁矿的体积分数引起的电磁响应的变化。 通过去除量化变化来获得电阻率和介电常数值来修改电磁响应。
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Patent Agency Ranking
公开(公告)号：US11822038B2
公开(公告)日：2023-11-21
申请号：US17175985
申请日：2021-02-15
Applicant: Schlumberger Technology Corporation
Inventor： Siddharth Misra , Dean Homan , Yuteng Jin , John Rasmus
IPC: G01V3/30 , E21B47/092 , G01V3/26
CPC classification number: G01V3/30 , E21B47/092 , G01V3/26
Abstract: Aspects of the present disclosure relate to a method for determining a contact angle, a wettability, or both, of one or more types of solid particles within a geological formation. The method may include identifying a relative conductive of the type of solid particles and identifying a frequency range for one or more EM measurements. The method may also include determining a contact angle associated with at least one type of solid particles within the geological formation using the electromagnetic measurements corresponding to the frequency range.
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公开(公告)号：US10330618B2
公开(公告)日：2019-06-25
申请号：US15569094
申请日：2016-04-29
Applicant: Schlumberger Technology Corporation
Inventor： Siddharth Misra , John Rasmus , Dean Homan
Abstract: A method to estimate water saturation in electromagnetic measurements includes making an electromagnetic measurement and performing at least one of (a) creating an analytical forward model of the EM measurement, (b) creating a numerical finite difference forward model of the EM measurement, and (c) performing an inversion. The method also includes removing at least one petrophysically-adverse alteration of EM measurements in the frequency range from 1 Hz to 100 MHz. A petrophysically-adverse alteration is due to the presence of at least one of the following: pyrite, graphitic-precursors, magnetite, and other conductive minerals.
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公开(公告)号：US10067257B2
公开(公告)日：2018-09-04
申请号：US14827632
申请日：2015-08-17
Applicant: Schlumberger Technology Corporation
Inventor： Dean Homan , John Rasmus , Gerald Minerbo , Siddharth Misra , Aditya Gupta
IPC: G01V3/00 , G01V3/02 , G01V3/04 , G01V3/10 , G01V3/12 , G01N33/24 , G01V3/30 , G01V3/38 , G01V3/28
Abstract: An electromagnetic measurement tool for making multi-frequency, full tensor, complex, electromagnetic measurements includes a triaxial transmitter and a triaxial receiver deployed on a tubular member. An electronic module is configured to obtain electromagnetic measurements at four or more distinct frequencies. The measurement tool may be used for various applications including obtaining a resistivity of sand layers in an alternating shale-sand formation; computing a dielectric permittivity, a conductivity anisotropy, and/or a permittivity anisotropy of a formation sample; and/or identifying formation mineralization including discriminating between pyrite and graphite inclusions and/or computing weight percent graphite and/or pyrite in the formation sample.
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9.发明申请Petrophysically-Consistent Calibration of Full-Tensor Electromagnetic Induction Tools 审中-公开全张度电磁感应工具的物理一致校准公开(公告)号：US20160139231A1
公开(公告)日：2016-05-19
申请号：US14944288
申请日：2015-11-18
Applicant: Schlumberger Technology Corporation
Inventor： Dean Homan , Siddharth Misra , John Rasmus , Gerald N. Minerbo
Abstract: A method for calibrating an electromagnetic core analysis tool is disclosed. The method includes disposing a tilted test loop inside of or outside of a tool having more than one antenna. A uniform test pack, a layered test pack, and an effective media test pack are each disposed in the tool. A signal is induced in a receiver antenna in the tool when a second antenna is energized with a known current of a known frequency. The induced signal is measured and a calibration gain and offset is determined. A corrected signal is produced and compared with the determined signal based on a forward model.
Abstract translation: 公开了一种用于校准电磁核心分析工具的方法。 该方法包括在具有多于一个天线的工具的内部或外部设置倾斜测试回路。 均匀的测试包，分层的测试包和有效的介质测试包各自被放置在工具中。 当第二天线以已知频率的已知电流通电时，在工具中的接收机天线中感应信号。 测量感应信号，并确定校准增益和偏移。 基于正向模型产生校正信号并与确定的信号进行比较。
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公开(公告)号：US10036827B2
公开(公告)日：2018-07-31
申请号：US14944288
申请日：2015-11-18
Applicant: Schlumberger Technology Corporation
Inventor： Dean Homan , Siddharth Misra , John Rasmus , Gerald N. Minerbo
Abstract: A method for calibrating an electromagnetic core analysis tool is disclosed. The method includes disposing a tilted test loop inside of or outside of a tool having more than one antenna. A uniform test pack, a layered test pack, and an effective media test pack are each disposed in the tool. A signal is induced in a receiver antenna in the tool when a second antenna is energized with a known current of a known frequency. The induced signal is measured and a calibration gain and offset is determined. A corrected signal is produced and compared with the determined signal based on a forward model.
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