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11.发明申请公开(公告)号：US20220236226A1
公开(公告)日：2022-07-28
申请号：US17157340
申请日：2021-01-25
Applicant: ARAMCO SERVICES COMPANY
Inventor： Chao Liu , Dung T. Phan , Younane N. Abousleiman
Abstract: A method for measuring a fracture permeability and a matrix permeability of a naturally fractured cylindrical rock sample, includes sealing both flat ends of the cylindrical sample; immersing the naturally fractured cylindrical rock sample in a fluid, and attaching an axial and a radial strain sensor to the curved surface of the sample. Furthermore, the method includes attaching a signal generator to one flat end of sample, and a signal receiver to the other flat end of the sample, and generating a harmonic excitation using the signal generator at a plurality of frequencies and recording the excitation at each of the plurality of frequencies. The method includes calculating an elastic wave propagation attribute at each of the plurality of frequencies, and inverting the elastic wave propagation attribute at each of the plurality of frequencies to determine the fracture permeability and the matrix permeability of the naturally fractured cylindrical rock sample.
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Patent Agency Ranking
公开(公告)号：US20240402384A1
公开(公告)日：2024-12-05
申请号：US18326986
申请日：2023-05-31
Applicant: ARAMCO SERVICES COMPANY
Inventor： Yanhui Han , Khaqan Khan , Rima Taqi AlFaraj , Dung T. Phan , Chao Liu , Khalid M. Alruwaili , Murtadha J. AlTammar
Abstract: A method of constructing a mechanical earth model (MEM) includes integrating a density logging data set to compute vertical stress and applying correlation models or equations to estimate a pore pressure and mechanical properties. The method also includes calibrating the pore pressure with drill stem test data, calibrating the mechanical properties with laboratory tests on core plugs or on rock cuttings, estimating a minimum horizontal stress using correlation models, and calibrating the minimum horizontal stress with minifrac tests. The method further includes estimating a maximum horizontal stress using the correlation models while assuming one or more correlation parameters, calibrating the maximum horizontal stress with a global pattern of tectonic strains and a basin stress regime, evaluating one or more breakout regions using the MEM, a trajectory of a well, and a geometry of a pilot hole, and comparing the one or more breakout regions and a caliper logging data set.
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公开(公告)号：US20240393226A1
公开(公告)日：2024-11-28
申请号：US18324586
申请日：2023-05-26
Applicant: ARAMCO SERVICES COMPANY
Inventor： Chao Liu , Dung T. Phan , Younane N. Abousleiman
Abstract: Systems and methods for determining breakdown overpressure are disclosed. The methods may include obtaining a borehole radius and a porosity value in a borehole; determining a rock brittleness index value from the porosity value; determining a breakdown overpressure radius from the rock brittleness index value and the borehole radius; and determining a breakdown overpressure from the breakdown overpressure radius. The methods may further include planning a fracking operation in a well based on the determined breakdown overpressure.
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公开(公告)号：US20240192391A1
公开(公告)日：2024-06-13
申请号：US18065392
申请日：2022-12-13
Applicant: ARAMCO SERVICES COMPANY
Inventor： Chao Liu , Dung T. Phan
CPC classification number: G01V1/306 , G01V1/303 , G01V1/46 , G01V99/005 , G06F17/16 , G01V2210/6244
Abstract: Systems and methods are disclosed. The method includes obtaining well data for a fluid-saturated rock and obtaining a poroelastodynamic relationship linking a deformation of the fluid-saturated rock to a poromechanical property of the fluid-saturated rock. The method further includes determining the poromechanical property of the fluid-saturated rock by applying a vector operator to the poroelastodynamic relationship. The method still further includes determining a value of the poromechanical property by substituting the well data into the vector-operated poroelastodynamic relationship.
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15.发明授权公开(公告)号：US11952882B2
公开(公告)日：2024-04-09
申请号：US17648034
申请日：2022-01-14
Applicant: ARAMCO SERVICES COMPANY
Inventor： Chao Liu , Yanhui Han , Dung T. Phan , Younane N. Abousleiman
Abstract: A method includes obtaining total stresses and pore pressures of each porous medium of a formation, determining a first and second set of effective stresses for the formation, determining an individual collapse and fracturing mud weight for each porous medium of the formation using a first set of associated failure criteria, wherein the first set of associated failure criteria are based on the first set of effective stresses, determining an overall collapse and fracturing mud weight for the formation using a second set of associated failure criteria, wherein the second set of associated failure criteria is based on the second set of effective stresses, determining a mud weight window for the formation using the individual collapse mud weight, the individual fracturing mud weight, the overall collapse mud weight, and the overall fracturing mud weight, and transmitting a command to a drilling system based on the mud weight window.
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16.发明公开公开(公告)号：US20230383648A1
公开(公告)日：2023-11-30
申请号：US17804273
申请日：2022-05-26
Applicant: ARAMCO SERVICES COMPANY
Inventor： Chao Liu , Vladimir Kazei , Dung T. Phan , Younane N. Abousleiman
CPC classification number: E21B49/088 , G01N33/241 , G01V1/306 , E21B49/005 , E21B2200/20
Abstract: A method of determining rock matrix and fracture permeability to perform a reservoir fluid flow simulation. The method includes: obtaining a petrophysical characterization of a formation sample, measuring a first and second elastic wave velocity of the formation sample at a first and second frequency, calculating an average rock matrix density and an average porosity of the formation sample, determining a set of calculated elastic wave velocities for the first and second frequencies over a range of candidate permeabilities, and determining a rock matrix permeability and a fracture permeability based on the set of calculated elastic wave velocities at the first and second frequency respectively. The method further including performing a reservoir fluid flow simulation based, at least in part, on at least one of the rock matrix permeability and the fracture permeability.
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