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公开(公告)号：US20250075618A1
公开(公告)日：2025-03-06
申请号：US18458876
申请日：2023-08-30
Applicant: ARAMCO SERVICES COMPANY
Inventor： Dung T. Phan , Hong Phuc Nguyen , Chao Liu , Younane N. Abousleiman
IPC: E21B49/00 , E21B44/00 , E21B47/022 , E21B47/08
Abstract: A method for evaluating and controlling a washout region of a wellbore placed in a formation includes: obtaining information about the wellbore and the formation; establishing a washout indicator function as a function of time and location; computationally determining whether the washout region exists by calculating the washout indicator function on a cross section of the wellbore and the formation, at each depth in a specific depth range; and upon finding presence of the washout region in the specific depth range, quantifying the washout region. The washout indicator function returns: a negative value for a point within the formation; a positive value for a point within the washout region; and zero for a point on a boundary.
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公开(公告)号：US20240027642A1
公开(公告)日：2024-01-25
申请号：US17814380
申请日：2022-07-22
Applicant: ARAMCO SERVICES COMPANY
Inventor： Chao Liu , Dung T. Phan , Younane N. Abousleiman
CPC classification number: G01V1/306 , E21B49/006 , E21B2200/20
Abstract: Systems and methods for determining a connected porosity and a non-connected porosity in a fluid-saturated hydrocarbon reservoir are disclosed. The methods include obtaining at least one rock sample from the fluid-saturated hydrocarbon reservoir, determining, using a petrophysical sample analyzer, at least one petrophysical parameter of the rock sample, and measuring at least one of an elastic wave velocity and an elastic wave attenuation for each of a plurality of wave frequencies. The methods further include determining, using a computer processor, the connected porosity and the non-connected porosity of the rock sample using a dual-porosity single-permeability model based, at least in part, on at least one petrophysical parameter and at least one of the elastic wave velocity and the elastic wave attenuation.
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公开(公告)号：US20230304397A1
公开(公告)日：2023-09-28
申请号：US17656814
申请日：2022-03-28
Applicant: ARAMCO SERVICES COMPANY
Inventor： Dung T. Phan , Chao Liu , Younane N. Abousleiman
CPC classification number: E21B49/005 , E21B49/02 , E21B2200/20
Abstract: A method for predicting a formation property of a formation, including the steps of: drilling a first well that penetrates the formation, obtaining well properties from the first well, determining a measured formation property from the first well, determining a correlation function that estimates a predicted formation property from the well properties, wherein the correlation function comprises coefficients, calibrating the correlation function by modifying the coefficients until the predicted formation property best matches the measured formation property, drilling a second well that penetrates the formation, obtaining well properties from the second well, determining the formation property from the second well by applying the correlation function with the modified coefficients to the well properties.
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公开(公告)号：US20250059887A1
公开(公告)日：2025-02-20
申请号：US18451705
申请日：2023-08-17
Applicant: ARAMCO SERVICES COMPANY
Inventor： Yanhui Han , Dung T. Phan , Chao Liu
IPC: E21B49/00
Abstract: A computer-implemented method for determining near-wellbore stress and state in a drilled well includes: importing input data of a form of data files; calculating stress and pressure parameters along a wellbore path from the input data imported; displaying one or more of the input data and the calculated stress and pressure parameters along a well path of the drilled well; receiving, by a graphical user interface (GUI), a user selection of a depth at which distribution of the near-wellbore stress and state around a wellbore is determined; in response to receiving the user selection, calculating near-wellbore parameters describing the near-wellbore stress and state around the wellbore; and displaying, by the GUI, the calculated near-wellbore parameters around the wellbore.
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公开(公告)号：US20250003336A1
公开(公告)日：2025-01-02
申请号：US18342487
申请日：2023-06-27
Applicant: ARAMCO SERVICES COMPANY
Inventor： Yanhui Han , Rima T. AlFaraj , Khaqan Khan , Dung Phan , Chao Liu , Khalid Alruwaili , Murtadha J. AlTammar
IPC: E21B49/00
Abstract: A method for performing a borehole operation is disclosed. The method includes determining a characteristic diffusion time that corresponds to an undrained response period or a non-monotonic pore pressure dissipation phase of a porous medium surrounding a borehole, determining, based on a pre-determined failure criterion, a critical time of the borehole that corresponds to when a failure of the porous medium occurs within the characteristic diffusion time, identifying a failure region of the failure occurring at the critical time of the borehole, and performing, based on at least the identified failure region, the borehole operation.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230228181A1
公开(公告)日：2023-07-20
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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公开(公告)号：US20250059874A1
公开(公告)日：2025-02-20
申请号：US18449553
申请日：2023-08-14
Applicant: ARAMCO SERVICES COMPANY
Inventor： Dung T. Phan , Klen T. Nguyen , Chao Liu , Ashok Kumar Santra
Abstract: A method for selecting lost circulation materials (LCM) for boring a well involves determining, for a multitude of LCM blends, a multitude of overall scores based on characteristics associated with each of the multitude of LCM blends, and establishing a list of LCM blend candidates. Establishing the list of LCM blend candidates involves including a first of the multitude of LCM blends in a list of LCM blend candidates based on a first overall score associated with the first LCM blend, and excluding a second of the multitude of LCM blends from the list of LCM blend candidates, based on a second overall score associated with the second LCM blend. The first overall score is greater than the second overall score.
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公开(公告)号：US20240319161A1
公开(公告)日：2024-09-26
申请号：US18188843
申请日：2023-03-23
Applicant: ARAMCO SERVICES COMPANY
Inventor： Chao Liu , Dung T. Phan
IPC: G01N33/24
CPC classification number: G01N33/24
Abstract: A system for determining cation exchange capacity includes: a container containing a solution having a solute and a solvent; a sample; a pressure sensor configured to measure an osmotic pressure of the sample generated by a flow of the solution through the sample; and a control unit configured to determine the cation exchange capacity of the sample based on the osmotic pressure measured by the pressure sensor.
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公开(公告)号：US20230340843A1
公开(公告)日：2023-10-26
申请号：US17727330
申请日：2022-04-22
Applicant: ARAMCO SERVICES COMPANY
Inventor： Dung T. Phan , Chao Liu , Younane N. Abousleiman
IPC: E21B21/06
CPC classification number: E21B21/062 , E21B2200/20 , E21B2200/22
Abstract: A system and method for determining a mud-weight window is disclosed. The method includes determining, for each of a plurality of borehole-formation training models, a fracture mud weight using a first physics-based method and a collapse mud weight using a second physics-based method, and training, using the plurality of borehole-formation training models, an artificial intelligence (AI) network to predict the fracture and collapse mud weights for a borehole formation model. The method further includes determining, using the trained AI network, an AI fracture and an AI collapse mud weight from an observed borehole-formation model, and a search window surrounding each AI mud weight. The method further includes predicting a final fracture mud weight within the fracture search window using the first physics-based method and a final collapse mud weight within the collapse search window using the second physics-based method, and determining the mud-weight window bounded by the two final mud weights.
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10.发明授权公开(公告)号：US11519879B2
公开(公告)日：2022-12-06
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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