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公开(公告)号：US20250044473A1
公开(公告)日：2025-02-06
申请号：US18362624
申请日：2023-07-31
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Jun Gao , Hyung Tae Kwak
Abstract: Methods and systems are disclosed. Methods may include obtaining well data along an interval of a well and identifying a first candidate interval within the interval using the well data. The well data includes acoustic data and porosity data. A formation surrounding the well within the first candidate interval includes micropores. The methods may further include determining mechanical parameter data along the first candidate interval based on the acoustic data and identifying a second candidate interval within the first candidate interval based on the mechanical parameter data and the porosity data. The methods may still further include determining water saturation data along the second candidate interval based on the well data, identifying a productive interval within the second candidate interval based on the water saturation data and a water saturation threshold, and determining a completion plan for the well based on the productive interval.
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公开(公告)号：US20230305186A1
公开(公告)日：2023-09-28
申请号：US17656831
申请日：2022-03-28
Inventor： Marwah Mufid Alsinan , Xupeng He , Hyung Tae Kwak , Hussein Hoteit
CPC classification number: G01V99/005 , G01N15/0806 , E21B41/00 , E21B49/00 , E21B2200/20
Abstract: A method is disclosed for modeling fluid flow through a fracture. The method includes obtaining a normal stress, and a shear stress and determining a first three-dimensional (3D) aperture model. Further, the method includes estimating a normal fracture closure displacement under the normal stress and a fracture dilation under the shear stress and simulating a fluid flow through a second 3D aperture model of the fracture. The second 3D aperture model of the fracture is based on the first 3D aperture, the normal fracture closure displacement, and the fracture dilation. Additionally, the method includes calculating a permeability of the second 3D aperture model of the fracture based on the simulated fluid flow.
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公开(公告)号：US11371335B2
公开(公告)日：2022-06-28
申请号：US17002267
申请日：2020-08-25
Inventor： Hyung Tae Kwak , Mahmoud Elsayed , Ammar El-Husseiny , Mohamed Mahmoud
Abstract: A fracture geometry mapping method includes determining a value of a diffusive tortuosity in a first direction in a first rock sample from a subterranean formation with one or more hardware processors; determining a value of a diffusive tortuosity in a second direction in the first rock sample from the subterranean formation with the one or more hardware processors, the second direction orthogonal to the first direction in the first rock sample; determining a value of a diffusive tortuosity in third direction in the first rock sample from the subterranean formation with the one or more hardware processors, the third direction orthogonal to both the first direction and the second direction in the first rock sample; comparing the values of the diffusive tortuosities in the in the first direction, the second direction, and the third direction; and based on the comparison, generating a first fracture network map of the subterranean formation, the first fracture network map including a first plurality of anisotropic fracture pathways.
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公开(公告)号：US20220187491A1
公开(公告)日：2022-06-16
申请号：US17489445
申请日：2021-09-29
Inventor： Marwah Mufid AlSinan , Hyung Tae Kwak , Xupeng He , Hussein Hoteit
Abstract: Systems and methods for determining a 3D hydraulic aperture of a 3D fracture are disclosed. The method includes, obtaining a geometry of the 3D fracture, determining a fluid flow direction through the 3D fracture, and dividing the 3D fracture into a plurality of 2D cross-sections oriented substantially parallel to the fluid flow direction. The method further includes dividing each 2D cross-section into a plurality of Type I and Type II fracture segments based on a segment aspect ratio and a segment roughness ratio, determining a 2D segment hydraulic aperture for each of the plurality of Type I and Type II fracture segments, and determining the 3D hydraulic aperture of the 3D fracture based, at least in part, on the 2D segment hydraulic apertures of the plurality of Type I and Type II fracture segments.
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公开(公告)号：US11112373B1
公开(公告)日：2021-09-07
申请号：US16801492
申请日：2020-02-26
Applicant: Saudi Arabian Oil Company
Inventor： Marwah Mufid AlSinan , Hyung Tae Kwak
IPC: G01N24/08 , G01R33/483 , G01R33/44 , G01V3/14
Abstract: Provided is a local slice selective T2 nuclear magnetic resonance (NMR) test procedure that includes: (1) identifying a location of a fracture within a core plug; (2) conducting an initial local slice selective T2 NMR test on a slice of the plug that corresponds to the location to generate initial T2 measurements; (3) determining an initial fracture pore volume of the fracture based on the initial T2 measurements; (4) conducting an in-situ local slice selective T2 NMR test on the slice of the plug to generate in-situ T2 measurements and corresponding measures of a volume of fluid expelled from the plug; (5) determining an in-situ fracture pore volume for the fracture based on the in-situ T2 measurements; and (6) comparing the volume of water to a difference between the initial and the in-situ fracture pore volumes to confirm the accuracy of the in-situ pore volume.
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Patent Agency Ranking
公开(公告)号：US10976274B2
公开(公告)日：2021-04-13
申请号：US16574764
申请日：2019-09-18
Applicant: Saudi Arabian Oil Company
Inventor： Hyung Tae Kwak , Ahmad Mubarak Al-Harbi
Abstract: The present disclosure describes methods and systems, including computer-implemented methods, computer program products, and computer systems, for measuring wettability of a rock sample. One method includes: at each temperature of a plurality of temperatures, obtaining a first Nuclear Magnetic Resonance (NMR) surface relaxation time for a rock sample having a saturation level; determining a first temperature sensitivity based on the first NMR surface relaxation times and corresponding temperatures; at each temperature of the plurality of temperatures, obtaining a second NMR surface relaxation time for the rock sample that is saturated with oil; determining a second temperature sensitivity based on the second NMR surface relaxation times and corresponding temperature; and determining a wettability of the rock sample based on the first temperature sensitivity and the second temperature sensitivity.
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公开(公告)号：US10732316B2
公开(公告)日：2020-08-04
申请号：US16102992
申请日：2018-08-14
Applicant: Saudi Arabian Oil Company
Inventor： Ahmad Mubarak Alharbi , Hyung Tae Kwak , Jun Gao
Abstract: Embodiments relate to methods for assessing inaccessible pore volume for polymer flooding. The methods include utilizing nuclear magnetic resonance to monitor polymer-based fluid displacements into porous media. According to an embodiment, the method includes providing a core sample of a porous medium, determining a total pore volume of the core sample, introducing polymer solutions, obtaining nuclear magnetic resonance relaxation time distributions of water within the core sample, and assessing the inaccessible pore volume.
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8.发明申请公开(公告)号：US20190391060A1
公开(公告)日：2019-12-26
申请号：US16529260
申请日：2019-08-01
Applicant: Saudi Arabian Oil Company
Inventor： Hyung Tae Kwak , Ahmad Mubarak Al-Harbi
Abstract: Nuclear magnetic resonance (NMR) gas isotherm techniques to evaluate wettability of porous media, such as hydrocarbon reservoir rock, can include constructing a NMR gas isotherm curve for a porous media sample gas adsorption under various pressures. A hydrophobic or hydrophilic nature of the porous media sample can be determined using the NMR gas isotherm curves. A wettability of the porous media sample can be determined based on the NMR gas isotherm curve. The wettability can be determined for porous media samples with different pore sizes. In the case of reservoir rock samples, the determined wettability can be used, among other things, to model the hydrocarbon reservoir that includes such rock samples, to simulate fluid flow through such reservoirs, or to model enhanced hydrocarbon recovery from such reservoirs.
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9.发明申请公开(公告)号：US20190113429A1
公开(公告)日：2019-04-18
申请号：US16208156
申请日：2018-12-03
Applicant: Saudi Arabian Oil Company
Inventor： Hyung Tae Kwak , Ahmad Mubarak Al-Harbi
Abstract: Nuclear magnetic resonance (NMR) gas isotherm techniques to evaluate wettability of porous media, such as hydrocarbon reservoir rock, can include constructing a NMR gas isotherm curve for a porous media sample gas adsorption under various pressures. A hydrophobic or hydrophilic nature of the porous media sample can be determined using the NMR gas isotherm curves. A wettability of the porous media sample can be determined based on the NMR gas isotherm curve. The wettability can be determined for porous media samples with different pore sizes. In the case of reservoir rock samples, the determined wettability can be used, among other things, to model the hydrocarbon reservoir that includes such rock samples, to simulate fluid flow through such reservoirs, or to model enhanced hydrocarbon recovery from such reservoirs.
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10.发明申请公开(公告)号：US20190086312A1
公开(公告)日：2019-03-21
申请号：US16182280
申请日：2018-11-06
Applicant: Saudi Arabian Oil Company
Inventor： Hyung Tae Kwak , Ahmad Mubarak Al-Harbi
CPC classification number: G01N11/00 , G01N24/081 , G01N24/082 , G01N2011/0006 , G01N2011/0086 , G01R33/305 , G01R33/448 , G01R33/5617 , G01V3/32
Abstract: Nuclear magnetic resonance (NMR) gas isotherm techniques to evaluate wettability of porous media, such as hydrocarbon reservoir rock, can include constructing a NMR gas isotherm curve for a porous media sample gas adsorption under various pressures. A hydrophobic or hydrophilic nature of the porous media sample can be determined using the NMR gas isotherm curves. A wettability of the porous media sample can be determined based on the NMR gas isotherm curve. The wettability can be determined for porous media samples with different pore sizes. In the case of reservoir rock samples, the determined wettability can be used, among other things, to model the hydrocarbon reservoir that includes such rock samples, to simulate fluid flow through such reservoirs, or to model enhanced hydrocarbon recovery from such reservoirs.
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