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公开(公告)号：US20240393223A1
公开(公告)日：2024-11-28
申请号：US18324857
申请日：2023-05-26
Applicant: ARAMCO SERVICES COMPANY
Inventor： Hui-Hai Liu , Jilin Zhang , Mohammed Boudjatit , Gary Eppler
Abstract: Methods and systems are disclosed. The methods may include determining a first sequence of permeabilities by subjecting a rock sample to a first sequence of confining stress, axial stress, pore pressure (CSASPP) triplets and determining a first rock parameter using the first sequence of permeabilities, the first sequence of CSASPP triplets, and a first permeability model. The methods may further include determining a second sequence of permeabilities by subjecting the rock sample to a second sequence of CSASPP triplets and determining a second rock parameter using the second sequence of permeabilities, the second sequence of CSASPP triplets, and the first permeability model. The method may still further include determining an in situ permeability for an in situ rock based on an initial permeability, a second stress sensitivity parameter, a first stress sensitivity parameter, a confining stress value, axial stress values, a pore pressure value, and a second permeability model.
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公开(公告)号：US20240027378A1
公开(公告)日：2024-01-25
申请号：US17814170
申请日：2022-07-21
Applicant: ARAMCO SERVICES COMPANY
Inventor： Jin-Hong Chen , Stacey M. Althaus , Mohammed Boudjatit , Gary Eppler
CPC classification number: G01N24/081 , G01V99/005 , G01N33/24 , E21B41/00 , E21B47/06 , E21B44/00 , E21B49/02 , E21B2200/20
Abstract: A method and system for determining an uncorrupted NMR response from a sample at a predetermined measurement pressure is provided. The method includes obtaining a sample and a filler fluid with a negligible NMR response, determining a volume of filler fluid based on a dimension of the sample and an interior volume of a pressure cell, injecting the volume of filler fluid at a first temperature into the pressure cell and then changing the temperature of the volume of the filler fluid to a second temperature. The method also includes inserting the sample into the volume of filler fluid within the pressure cell, displacing an upper surface of filler fluid to a predetermined level within the interior volume of the pressure cell. The method still further includes establishing the predetermined measurement pressure within the pressure cell and determining the uncorrupted NMR response from the sample at the predetermined measurement pressure.
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公开(公告)号：US11579326B2
公开(公告)日：2023-02-14
申请号：US17197696
申请日：2021-03-10
Applicant: ARAMCO SERVICES COMPANY
Inventor： Stacey Marie Althaus , Jin-Hong Chen , Mohammed Boudjatit
Abstract: A method for analyzing unconventional rock samples using nuclear magnetic resonance (NMR), tracking fluid change in the rock sample over a time period, calculating transverse relaxation time (T2) generating fluid distribution profiles by the computer processor and based on a NMR imaging, where the fluid distribution profiles representing a movement of the fluid, and obtaining, quantification of fracture volume by the computer processor and based on the NMR imaging.
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公开(公告)号：US20240118224A1
公开(公告)日：2024-04-11
申请号：US17937309
申请日：2022-09-30
Applicant: ARAMCO SERVICES COMPANY
Inventor： Jin-Hong Chen , Stacey M. Althaus , Mohammed Boudjatit , Houzhu Zhang
IPC: G01N24/08 , E21B7/04 , E21B47/022 , G01N33/24
CPC classification number: G01N24/081 , E21B7/04 , E21B47/022 , G01N33/241 , G01N33/246 , E21B2200/20
Abstract: A method and system for determining a mass of an absorbed gas and a mass of a pore gas in a sample using NMR spectroscopy is provided. The method includes acquiring a baseline NMR spectrum of a pressure cell containing the sample, saturating the sample with a gas, acquiring a saturated NMR spectrum and determining a differential NMR spectrum of the sample by subtracting the baseline NMR spectrum from the saturated NMR spectrum. The method also includes separating the differential NMR spectrum into an absorbed gas NMR spectrum to determine an absorbed gas NMR signal and a pore gas NMR spectrum to determine a pore gas NMR signal by performing a spectral deconvolution. The method further includes acquiring a normalization NMR spectrum of the pressure cell containing a gas to determine a gas calibration NMR signal and determining the mass of the absorbed gas and pore gas.
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Patent Agency Ranking
公开(公告)号：US11988620B2
公开(公告)日：2024-05-21
申请号：US17814170
申请日：2022-07-21
Applicant: ARAMCO SERVICES COMPANY
Inventor： Jin-Hong Chen , Stacey M. Althaus , Mohammed Boudjatit , Gary Eppler
CPC classification number: G01N24/081 , E21B44/00 , E21B47/06 , E21B49/02 , G01N15/082 , G01N33/24 , G01V20/00 , E21B7/04 , E21B2200/20
Abstract: A method and system for determining an uncorrupted NMR response from a sample at a predetermined measurement pressure is provided. The method includes obtaining a sample and a filler fluid with a negligible NMR response, determining a volume of filler fluid based on a dimension of the sample and an interior volume of a pressure cell, injecting the volume of filler fluid at a first temperature into the pressure cell and then changing the temperature of the volume of the filler fluid to a second temperature. The method also includes inserting the sample into the volume of filler fluid within the pressure cell, displacing an upper surface of filler fluid to a predetermined level within the interior volume of the pressure cell. The method still further includes establishing the predetermined measurement pressure within the pressure cell and determining the uncorrupted NMR response from the sample at the predetermined measurement pressure.
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公开(公告)号：US12153003B2
公开(公告)日：2024-11-26
申请号：US17937309
申请日：2022-09-30
Applicant: ARAMCO SERVICES COMPANY
Inventor： Jin-Hong Chen , Stacey M. Althaus , Mohammed Boudjatit , Houzhu Zhang
IPC: G01N24/08 , E21B7/04 , E21B47/022 , G01N33/24
Abstract: A method and system for determining a mass of an absorbed gas and a mass of a pore gas in a sample using NMR spectroscopy is provided. The method includes acquiring a baseline NMR spectrum of a pressure cell containing the sample, saturating the sample with a gas, acquiring a saturated NMR spectrum and determining a differential NMR spectrum of the sample by subtracting the baseline NMR spectrum from the saturated NMR spectrum. The method also includes separating the differential NMR spectrum into an absorbed gas NMR spectrum to determine an absorbed gas NMR signal and a pore gas NMR spectrum to determine a pore gas NMR signal by performing a spectral deconvolution. The method further includes acquiring a normalization NMR spectrum of the pressure cell containing a gas to determine a gas calibration NMR signal and determining the mass of the absorbed gas and pore gas.
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7.发明授权公开(公告)号：US11740381B2
公开(公告)日：2023-08-29
申请号：US17372161
申请日：2021-07-09
Applicant: ARAMCO SERVICES COMPANY
Inventor： Jin-Hong Chen , Stacey M. Althaus , HouZhu Zhang , Hui-Hai Liu , Mohammed Boudjatit
CPC classification number: G01V3/32 , E21B49/02 , E21B49/0875 , G01N24/081 , G01N33/241 , E21B2200/20
Abstract: A method for determining maximum recoverable hydrocarbon (EMR) in a tight reservoir is disclosed. The method includes determining, based on downhole logs, a total measure of hydrocarbon amount within the tight reservoir, determining, by at least attributing fluid loss during core surfacing of the core sample to hydrocarbons, a non-recoverable measure of hydrocarbon amount within a core sample of the tight reservoir, and determining an EMR measure based on the total measure of hydrocarbon amount and the non-recoverable measure of hydrocarbon amount, wherein during the core surfacing pore pressure reduces from a reservoir condition to a surface condition.
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8.发明申请公开(公告)号：US20230012861A1
公开(公告)日：2023-01-19
申请号：US17372161
申请日：2021-07-09
Applicant: ARAMCO SERVICES COMPANY
Inventor： Jin-Hong Chen , Stacey M. Althaus , HouZhu Zhang , Hui-Hai Liu , Mohammed Boudjatit
Abstract: A method for determining maximum recoverable hydrocarbon (EMR) in a tight reservoir is disclosed. The method includes determining, based on downhole logs, a total measure of hydrocarbon amount within the tight reservoir, determining, by at least attributing fluid loss during core surfacing of the core sample to hydrocarbons, a non-recoverable measure of hydrocarbon amount within a core sample of the tight reservoir, and determining an EMR measure based on the total measure of hydrocarbon amount and the non-recoverable measure of hydrocarbon amount, wherein during the core surfacing pore pressure reduces from a reservoir condition to a surface condition.
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公开(公告)号：US20220291411A1
公开(公告)日：2022-09-15
申请号：US17197696
申请日：2021-03-10
Applicant: ARAMCO SERVICES COMPANY
Inventor： Stacey Marie Althaus , Jin-Hong Chen , Mohammed Boudjatit
Abstract: A method for analyzing unconventional rock samples using nuclear magnetic resonance (NMR), tracking fluid change in the rock sample over a time period, calculating transverse relaxation time (T2) generating fluid distribution profiles by the computer processor and based on a NMR imaging, where the fluid distribution profiles representing a movement of the fluid, and obtaining, quantification of fracture volume by the computer processor and based on the NMR imaging.
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