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公开(公告)号：US20230221236A1
公开(公告)日：2023-07-13
申请号：US17999990
申请日：2021-06-28
Applicant: SHELL OIL COMPANY
Inventor： Nishank SAXENA , Amie Marie HOWS , John Justin FREEMAN , John Justin FREEMAN , Matthias APPEL , Ronny HOFMANN , Bochao ZHAO
IPC: G01N15/08 , G01N23/046 , G01N23/083 , G01N33/24 , G06T7/11 , G06T7/00
CPC classification number: G01N15/088 , G01N23/046 , G01N23/083 , G01N33/24 , G06T7/11 , G06T7/0002 , G01N2015/0846 , G01N2223/401 , G01N2223/616 , G01N2223/649 , G06T2207/10081 , G06T2207/30181 , G06T2200/04 , G06T2207/20081
Abstract: The present invention provides a method for estimating hydrocarbon saturation of a hydrocarbon-bearing rock from a measurement for an electrical property a resistivity log and a rock image. The image is segmented to represent either a pore space or solid material in the rock. An image porosity is estimated from the segmented image, and a corrected porosity is determined to account for the sub-resolution porosity missing in the image of the rock. A corrected saturation exponent of the rock is determined from the image porosity and the corrected porosity and is used to estimate the hydrocarbon saturation. A backpropagation-enabled trained model can be used to segment the image. A backpropagation-enabled method can be used to estimate the hydrocarbon saturation using an image selected from a series of 2D projection images, 3D reconstructed images and combinations thereof.
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公开(公告)号：US20230408431A1
公开(公告)日：2023-12-21
申请号：US18248467
申请日：2021-11-02
Applicant: SHELL OIL COMPANY
Inventor： Daan Willem DE KORT , Matthias APPEL , Benjamin Charles ANGER , John Justin FREEMAN , Faruk Ömer ALPAK , Lynn Faith GLADDEN , Andrew John SEDERMAN , Michael David MANTLE , Kaspars KARLSONS
IPC: G01N24/08 , G01N23/046 , G01N33/24 , G01N23/083
CPC classification number: G01N24/081 , G01N23/046 , G01N33/241 , G01N23/083
Abstract: A method for calibrating a direct flow simulation of a rock sample involves providing a 3D image of a rock sample and generating a segmented structural image of the rock sample from the 3D image by selecting voxels to represent either a pore space or a solid material. Fluid flow is simulated on the segmented structural image with a direct flow simulation. A 3D spatially-resolved fluid velocity map is generated for one or more fluid phases at a pore-scale resolution using pulsed field gradient nuclear magnetic resonance imaging. The simulated fluid flow and the 3D spatially-resolved fluid velocity map are compared to calibrate the direct flow simulation across the rock sample.
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3.发明申请METHOD OF INTERPRETING NMR SIGNALS TO GIVE MULTIPHASE FLUID FLOW MEASUREMENTS FOR A GAS/LIQUID SYSTEM 有权解释核磁共振信号为气体/液体系统提供多相流体流量测量的方法公开(公告)号：US20160313159A1
公开(公告)日：2016-10-27
申请号：US15103429
申请日：2014-12-05
Applicant: SHELL OIL COMPANY
Inventor： Matthias APPEL , John Justin FREEMAN
CPC classification number: G01F1/716 , G01F1/74 , G01F25/0007
Abstract: A method for assessing a gas phase in a flowing multi-phase fluid comprises flowing the fluid through magnetic resonance and pre-polarization modules and applying to the fluid a radio-frequency pulse sequence at least once with and at least once without a magnetic field gradient. The method further includes measuring an NMR signal. The method also includes using a calibration between the ratio of slope and intercept of the NMR signal and flow velocity for at least one non-gas phase with the gradient applied to determine that phase's velocity. A calibration between the signal intensity of the liquid phases as function of flow velocity is used, with and without gradient, to correct the gradient-induced attenuation of the liquid signals and to calculate a gradient-corrected signal intensity of the liquid phases without a magnetic field gradient. Additionally, the method includes subtracting the gradient-corrected signal intensity from the NMR signal to calculate the volumetric fraction of the liquid phase.
Abstract translation: 用于评估流动多相流体中的气相的方法包括使流体通过磁共振和预偏振模块流动，并且在至少一次无磁场梯度下至少一次地向流体施加射频脉冲序列 。 该方法还包括测量NMR信号。 该方法还包括使用NMR信号的斜率和截距的比率与至少一个非气相的流速之间的校准，并施加梯度以确定该相的速度。 使用作为流速函数的液相的信号强度之间的校准，具有和不具有梯度，以校正液体信号的梯度诱导衰减，并计算没有磁性的液相的梯度校正信号强度 场梯度。 此外，该方法包括从NMR信号中减去梯度校正的信号强度以计算液相的体积分数。
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公开(公告)号：US20240044768A2
公开(公告)日：2024-02-08
申请号：US17999990
申请日：2021-06-28
Applicant: SHELL OIL COMPANY
Inventor： Nishank SAXENA , Faruk ALPAK , Amie HOWS , John FREEMAN , Matthias APPEL , Ronny HOFMANN , Bochao ZHAO
IPC: G01N15/08 , G01N23/046 , G01N23/083 , G01N33/24 , G06T7/11 , G06T7/00
CPC classification number: G01N15/088 , G01N23/046 , G01N23/083 , G01N33/24 , G06T7/11 , G06T7/0002 , G01N2015/0846 , G01N2223/401 , G01N2223/616 , G01N2223/649 , G06T2207/10081 , G06T2207/30181 , G06T2200/04 , G06T2207/20081
Abstract: The present invention provides a method for estimating hydrocarbon saturation of a hydrocarbon-bearing rock from a measurement for an electrical property a resistivity log and a rock image. The image is segmented to represent either a pore space or solid material in the rock. An image porosity is estimated from the segmented image, and a corrected porosity is determined to account for the sub-resolution porosity missing in the image of the rock. A corrected saturation exponent of the rock is determined from the image porosity and the corrected porosity and is used to estimate the hydrocarbon saturation. A backpropagation-enabled trained model can be used to segment the image. A backpropagation-enabled method can be used to estimate the hydrocarbon saturation using an image selected from a series of 2D projection images, 3D reconstructed images and combinations thereof.
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Patent Agency Ranking
公开(公告)号：US20220404330A1
公开(公告)日：2022-12-22
申请号：US17775720
申请日：2020-12-10
Applicant: SHELL OIL COMPANY
Inventor： Nishank SAXENA , Amie Marie HOWS , Matthias APPEL , John Justin FREEMAN
Abstract: The present invention provides a method for estimating hydrocarbon saturation of a hydrocarbon-bearing rock from a resistivity log and a rock image. The image is segmented to represent either a pore space or solid material in the rock. An image porosity is estimated from the segmented image, and a corrected porosity is determined to account for the sub-resolution porosity missing in the image of the rock. A corrected cementation exponent of the rock is determined from the image porosity and the corrected porosity and is used to estimate the hydrocarbon saturation. A backpropagation-enabled trained model can be used to segment the image. A backpropagation-enabled method can be used to estimate the hydrocarbon saturation using an image selected from a series of 2D projection images, 3D reconstructed images and combinations thereof.
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公开(公告)号：US20180356556A1
公开(公告)日：2018-12-13
申请号：US16046298
申请日：2018-07-26
Applicant: SHELL OIL COMPANY
Inventor： Matthias APPEL , Anton NIKITIN , Robert Adam WALSH , Ronny HOFMANN
Abstract: A gamma ray scintillation spectrometer is disclosed in which an inorganic scintillation crystal has a channel extending therethrough for receiving a sample into, and disposing a sample out of, the scintillation crystal. The spectrometer further includes a photomultiplier tube optically coupled to the scintillation crystal to detect photons generated by the scintillation crystal. A system and a method for using the gamma ray scintillation spectrometer are also provided.
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公开(公告)号：US20220099551A1
公开(公告)日：2022-03-31
申请号：US17414421
申请日：2019-12-16
Applicant: SHELL OIL COMPANY
Inventor： Nishank SAXENA , Amie Marie HOWS , Ronny HOFMANN , Matthias APPEL , John Justin FREEMAN
IPC: G01N15/08 , G01N33/24 , G01N23/046 , G01N23/083 , G06T7/11
Abstract: The present invention provides a method for estimating the permeability of rock from a digital image of the rock. A three-dimensional image of a rock is obtained and segmented, and an image permeability is determined from the segmented image of the rock. Permeability correction factors are obtained from the segmented image and from a non-wetting liquid capillary pressure curve derived from the segmented image, and the permeability correction parameters are applied to the image permeability to obtain a corrected image permeability of the rock.
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公开(公告)号：US20180239051A1
公开(公告)日：2018-08-23
申请号：US15897674
申请日：2018-02-15
Applicant: SHELL OIL COMPANY
Inventor： Matthias APPEL , Anton NIKITIN , Robert Adam WALSH , Ronny HOFMANN
CPC classification number: G01V5/06 , E21B49/005 , G01T1/2026 , G01V3/32 , G01V11/002
Abstract: A gamma ray scintillation spectrometer is disclosed in which an inorganic scintillation crystal has a channel extending therethrough for receiving a sample into, and disposing a sample out of, the scintillation crystal. The spectrometer further includes a photomultiplier tube optically coupled to the scintillation crystal to detect photons generated by the scintillation crystal. A system and a method for using the gamma ray scintillation spectrometer are also provided.
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9.发明申请公开(公告)号：US20170254920A1
公开(公告)日：2017-09-07
申请号：US15448183
申请日：2017-03-02
Applicant: SHELL OIL COMPANY
Inventor： Matthias APPEL , Benjamin Charles ANGER , Hilko de JONG , Lynn Faith GLADDEN , Michael David MANTLE , Andrew John SEDERMAN , Nicholas Philip RAMSKILL
CPC classification number: G01V3/32 , E21B47/0002 , E21B47/06 , E21B47/065 , E21B49/06 , E21B49/10 , G01N24/081 , G01R33/4828 , G01R33/5611 , G01R33/5617
Abstract: An imager and method for imaging fluid of a subsurface formation is disclosed. The imager includes a housing having a sidewall defining a passage to receive a core sample of the subsurface formation therethrough. The housing is positioned in a downhole tool and has a fluid inlet to receive fluid from the subsurface formation into the passage. The imager also includes a permanent magnet positioned in the sidewall of the housing, a radio frequency coil positioned in the sidewall of the housing between the permanent magnet and the passage, a gradient field in the sidewall of the housing between the permanent magnet and the radio frequency coil, and a chemically-selective imager. The chemically-selective imager is operatively connected to the radio frequency coil to selectively pulse frequencies according to a pulse sequence whereby individual fluid measurements of the sample are generated.
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