Patents Assigned to University of Petroleum
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Publication number: 20250256222Abstract: A method of treating an oil spill including first making a formulation. The formulation includes mixing an acid and a solvent to form a first solution, mixing a zinc (II) salt and water to form a second solution, and adding the second solution to the first solution to form the formulation. The acid includes a carboxylic acid group and at least 10 carbon atoms. The first solution includes 1 weight percentage (wt. %) to 10 wt. % of the acid relative to a total weight of the first solution, and the second solution includes 1 to 10 moles of the zinc (II) salt per liter of the water. The method further includes contacting the formulation with the oil spill. The oil spill includes an aqueous medium and an oily layer on the aqueous medium and the contacting coalesces the oily layer.Type: ApplicationFiled: May 17, 2024Publication date: August 14, 2025Applicant: King Fahd University of Petroleum and MineralsInventors: Ali A. BINABDI, Theis I. SOLLING
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Patent number: 12377386Abstract: A multi-stage direct contact membrane distillation (MS-DCMD) system and a process for using the MS-DCMD are provide. The MS-DCMD includes a plurality of modules, wherein each module includes a feed chamber fluidically coupled to a feed line and a carrier gas line, wherein the feed line introduces a liquid feed into the feed chamber from a liquid feed tank, and wherein the carrier gas line introduces a carrier gas into the feed chamber. Each module includes a cold chamber fluidically coupled to a cold-water feed line and a cold-water return line, wherein cold water is circulated through the cold chamber. Each module further includes a membrane separating the feed chamber from the cold chamber, wherein the membrane allows transportation of vapor from the feed chamber to the cold chamber while blocking liquid from moving from the feed chamber to the cold chamber.Type: GrantFiled: August 22, 2022Date of Patent: August 5, 2025Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Dahiru Umar Lawal, Turki Nabieh Baroud, Hasan Al Abdulgader
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Patent number: 12378467Abstract: A composition includes a continuous phase, a silica nanoparticle, methyl groups, and a quantum dot. The continuous phase includes ethanol or water. The silica nanoparticle has a diameter of less than 100 nanometers. The methyl groups are disposed on a surface of the silica nanoparticle. The quantum dot includes zinc oxide. The quantum dot is embedded in the silica nanoparticle.Type: GrantFiled: November 3, 2019Date of Patent: August 5, 2025Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Zain H. Yamani, Safyan A. Khan, Shahid Ali, Mohammed Al-Jabari
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Publication number: 20250243340Abstract: A method for synthesizing melamine polymer modified zinc oxide nanoparticles is provided. In the method, polymer grafted zinc oxide nanoparticles are provided, and melamine is grafted onto the polymer grafted zinc oxide nanoparticles by adding melamine in the presence of a carboxy group activating reagent to the polymer grafted zinc oxide nanoparticles to form the melamine polymer modified zinc oxide nanoparticles. A method of corrosion inhibition in a wellbore by applying the melamine polymer modified zinc oxide nanoparticles is also provided.Type: ApplicationFiled: January 31, 2024Publication date: July 31, 2025Applicants: SAUDI ARABIAN OIL COMPANY, King Fahd University of Petroleum and MineralsInventors: Norah Aljeaban, Bader Ghazi Al-Harbi, Tawfik A. Saleh
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Patent number: 12370522Abstract: A system for co-generating ammonia and power is described. The system includes oxygen transport reactors having an ion transport membrane (ITM) that separates a feed side and a permeate side. The feed side includes a feed inlet and a feed outlet, and the permeate side includes a permeate inlet and a permeate outlet. A first feed inlet receives water vapor to be converted into hydrogen and first oxygen, and a second feed inlet receives air to be split into nitrogen and second oxygen. The ITM selectively allows permeation of the first oxygen and the second oxygen to respective permeate side to support oxy-combustion process. A first feed outlet discharges hydrogen and a second feed outlet discharges nitrogen, where the hydrogen and the nitrogen are combined in a catalytic converter to form ammonia. Combustion gases from the oxygen transport reactors are used to run a gas turbine to extract power.Type: GrantFiled: June 15, 2022Date of Patent: July 29, 2025Assignees: King Fahd University of Petroleum and Minerals, King Abdullah City for Atomic & Renewable Energy (K.A. CARE)Inventors: Mohammed Abdulaziz Habib, Binash Imteyaz
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Patent number: 12360273Abstract: A data-driven linear filtering method to recover microseismic signals from noisy data/observations based on statistics of background noise and observation, which are directly extracted from recorded data without prior statistical knowledge of the microseismic source signal. The method does not depend on any specific underlying noise statistics and works for any type of noise, e.g., uncorrelated (random/white Gaussian), temporally correlated and spatially correlated noises. The method is suitable for microquake data sets that are recorded in contrastive noise environments. The method is demonstrated with both field and synthetic data sets and shows a robust performance.Type: GrantFiled: December 12, 2019Date of Patent: July 15, 2025Assignee: King Fahd University of Petroleum and MineralsInventors: Naveed Iqbal, Bo Liu
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Publication number: 20250223897Abstract: The invention relates to the field of reservoir stimulation in oil and gas formations, and discloses an acidizing fracturing method for carbonate formations and application of the acidizing fracturing method, wherein the method comprises the following steps: (1) designing artificial fractures according to a target location in the fracture-vug formation and a wellbore structure after well completion, and apply of drilling-fracturing integration tool to drill inside rock as the artificial fractures; (2) sealing the artificial fractures with open hole packer and then fracturing it to create fracture network I; (3) injecting acid for acidizing fracturing treatment on the fracture network I to create fracture network II. The invention can artificially control the direction and the length of propagation of the artificial fracture to create complicated fracture network to connect more hydrocarbon reservoirs in fracture-vug formations.Type: ApplicationFiled: December 13, 2024Publication date: July 10, 2025Applicant: China University of Petroleum (Beijing)Inventors: Zhou ZHOU, Yan JIN, Mian CHEN
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Patent number: 12351760Abstract: A process for upgrading a hydrocarbon feed comprises contacting the hydrocarbon feed with steam in the presence of a cracking catalyst composition at reaction conditions sufficient to cause at least a portion of hydrocarbons in the hydrocarbon feed to undergo one or more cracking reactions to produce a steam catalytic cracking effluent comprising light olefins, light aromatic compounds, or both, where the cracking catalyst composition comprises a cracking additive comprising metal species impregnated on a ZSM-5 zeolite, where the metal species comprises a metal selected from the group consisting of chromium, vanadium, iron, platinum, molybdenum, cerium, and nickel.Type: GrantFiled: March 10, 2023Date of Patent: July 8, 2025Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum and MineralsInventors: Aaron Chi Akah, Musaed Salem Al-Ghrami, Abdullah Mohammed Aitani, Ziyauddin Qureshi, Mohammed Abdul Bari Siddiqui
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Publication number: 20250208831Abstract: This disclosure represents an improved computer system and process to avoid the consequences of improper conversion of numbers and of rounding errors. This process makes the distinction between exact and inexact decimal floating-point numbers. If the result of a sequence of operation is exact, the user can trust that every decimal digit in the computed result is correct. On the other hand, if the input operands are inexact or the result cannot be computed exactly, a loss of significant digits occurs, and the user is warned of the loss. A novel representation is used for the inexact computed values. An estimate of the absolute error is also part of the representation.Type: ApplicationFiled: March 12, 2025Publication date: June 26, 2025Applicant: King Fahd University of Petroleum and MineralsInventor: Muhamed F. MUDAWAR
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Patent number: 12339237Abstract: An on-line detection system for defects of an MEA is provided. The detection system includes a workbench, two connecting rods are arranged inside the workbench, two ends of the two connecting rods are both connected to two side walls of the workbench by means of bearings, and conveying rollers are fixedly arranged outside the two connecting rods in a sleeving manner. One side of the workbench is fixedly provided with a first electric motor, and an output end of the first electric motor is fixedly connected to one of the connecting rods. Belt pulleys are fixedly arranged outside the two connecting rods in a sleeving manner, and a belt is arranged outside the two belt pulleys in a sleeving manner. A hollow roller is arranged on an inner side of the workbench, and a plurality of exhaust holes are provided in a top of the hollow roller.Type: GrantFiled: August 18, 2023Date of Patent: June 24, 2025Assignee: China University of Petroleum (East China)Inventors: Min Wang, Jiexin Zou, Mingbo Wu, Han Hu, Zhongtao Li, Debin Kong, Guanxiong Wang
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Patent number: 12332398Abstract: A pore pressure prediction method for fine-grained hybrid sedimentary rock based on variable P-wave velocity includes: carrying out a P-wave velocity test of rock under different effective stresses, determining a function form of the relationship between acoustic velocity and effective stress, fitting the parameters in the function by optimization, and establishing an evaluation model of effective stress influence term by lithology. According to the measured formation pressure data and the effective stress influence term model, the acoustic velocity background value is deduced, the logging curve is preferred, and the acoustic velocity background value logging evaluation model is established. According to the logging curves of DT and DEN, combined with the lithology identification results, the acoustic velocity background value is calculated, and then the effective stress of the formation is obtained, and then the pore pressure is determined according to the overburden pressure.Type: GrantFiled: December 5, 2024Date of Patent: June 17, 2025Assignee: China University of Petroleum (East China)Inventors: Dianshi Xiao, Rui Wang, Min Wang, Zhuo Li, Yingjie Liu, Xian Shi
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Publication number: 20250189427Abstract: The present disclosure provides an experimental apparatus and method for simulating fracturing of a fan-shaped well pattern. The apparatus includes a stratum simulator and a wellbore simulator group. The stratum simulator includes a chamber into which materials are poured to simulate a stratum environment. The wellbore simulator group at least includes a first wellbore simulator and a second wellbore simulator. A first end of the first wellbore simulator and a first end of the second wellbore simulator are respectively located outside the chamber and provided with a control valve. A second end of the first wellbore simulator is extended into the chamber and provided with a first perforation simulator, a second end of the second wellbore simulator is extended into the chamber and passes through the corresponding first perforation simulator, and the second end of the second wellbore simulator is provided with a second perforation simulator.Type: ApplicationFiled: November 26, 2024Publication date: June 12, 2025Applicant: China University of Petroleum-BeijingInventors: Guangqing ZHANG, Shuai LI, Haode CHENG
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Patent number: 12322207Abstract: The embodiments of the present application provide a method and a device for identifying an unsafe behavior of a drilling operator, which relate to the field of data analysis, and the method includes obtaining eye movement data information of a drilling operator by an eye movement data sensor, processing the eye movement data information to obtain an eye movement characteristic parameter corresponding to the eye movement data information, inputting the eye movement characteristic parameter to an identification model to obtain an output result from the identification model, and determining an operation behavior of the operator according to the output result and sending a warning to the operator when the operation behavior is a preset type. Through analyzing the eye movement data information in real time, whether an operation behavior meets regulations can be determined, thus realizing real-time monitoring and identification of unsafe operation behaviors of the drilling operator.Type: GrantFiled: June 6, 2022Date of Patent: June 3, 2025Assignee: China University of Petroleum-BeijingInventors: Jinqiu Hu, Chuangang Chen, Yiyue Chen
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Patent number: 12312259Abstract: Copper-boron-ferrite (Cu—B—Fe) composites may be prepared and immobilized on graphite electrodes in a silica-based sol-gel, e.g., from rice husks. Different bimetallic loading ratios can produce fast in-situ electrogeneration of reactive oxygen species, H2O2 and ·OH, e.g., via droplet flow-assisted heterogeneous electro-Fenton reactor system. Loading ratios of, e.g., 10 to 30 wt. % Fe3+ and 5 to 15% wt. Cu2+, can improve the catalytic activities towards pharmaceutical beta blockers (atenolol and propranolol) degradation in water. Degradation efficiencies of at least 99.9% for both propranolol and atenolol in hospital wastewater were demonstrated. Radicals of ·OH in degradation indicate a surface mechanism at inventive cathodes with correlated contributions of iron and copper. Copper and iron can be embedded in porous graphite electrode surface and catalyze the conversion of H2O2 to ·OH to enhance the degradation.Type: GrantFiled: January 20, 2023Date of Patent: May 27, 2025Assignee: King Fahd University of Petroleum and MineralsInventors: Chanbasha Basheer, Hakimu Nsubuga
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Publication number: 20250164626Abstract: Methods and systems for determining the speed of light by utilizing optical feedback from a laser diode include a laser diode mounted at a distance from a linear stage, with a beamsplitter positioned at an initial location along the stage. The laser diode generates a variably pulsed laser beam that is split by the beamsplitter into two portions. The first portion is reflected back to the laser diode, inducing stimulated amplification, while the second portion is detected by a photodetector. The photodetector measures the optical intensity and generates an amplified electrical signal. A data acquisition system records the frequency at which the laser power peaks, indicating resonance conditions. The beamsplitter is subsequently moved to a second position, and a new peak frequency is detected. Based on the measured frequencies and positions, the speed of light is calculated with high precision.Type: ApplicationFiled: November 19, 2024Publication date: May 22, 2025Applicant: King Fahd University of Petroleum and MineralsInventor: Abdulaziz Mohammed Aljalal
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Patent number: 12281258Abstract: A method, system, and drilling fluid for treating a wellbore for filter cake removal, including providing the drilling fluid having thermochemical reagents that are encapsulated and acid-generating material that is encapsulated into a wellbore in a subterranean formation to attack filter cake in the wellbore, and attacking the filter cake via the drilling fluid.Type: GrantFiled: April 4, 2022Date of Patent: April 22, 2025Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Ayman Raja Al-Nakhli, Mohamed Mahmoud, Zeeshan Tariq, Alade Olalekan Saheed, Muhammad Shahzad Kamal
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Patent number: 12275897Abstract: Carbon nanofiber doped alumina (Al—CNF) supported MoCo catalysts in hydrodesulfurization (HDS), and/or boron doping, e.g., up to 5 wt % of total catalyst weight, can improve catalytic efficiency. Al—CNF-supported MoCo catalysts, (Al—CNF—MoCo), can reduce the sulfur concentration in fuel, esp. liquid fuel, to below the required limit in a 6 h reaction time. Thus, Al—CNF—MoCo has a higher catalytic activity than Al—MoCo, which may be explained by higher mesoporous surface area and better dispersion of MoCo metals on the AlCNF support relative to alumina support. The BET surface area of Al—MoCo may be 75% less than Al—CNF—MoCo, e.g., 166 vs. 200 m2/g. SEM images indicate that the catalyst nanoparticles can be evenly distributed on the surface of the CNF. The surface area of the AlMoCoB 5% may be 206 m2/g, which is higher than AlMoCoB 0% and AlMoCoB 2%, and AlMoCoB 5% has the highest HDS activity, removing more than 98% sulfur and below allowed levels.Type: GrantFiled: March 15, 2024Date of Patent: April 15, 2025Assignee: King Fahd University of Petroleum and MineralsInventors: Tawfik Abdo Saleh Awadh, Saddam Ahmed Al-Hammadi
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Patent number: 12274988Abstract: A dendrimeric carbon dot-polyamide membrane, a method for making the dendrimeric carbon dot-polyamide membrane, and a method for producing purified water are provided. An exemplary carbon dot-polyamide membrane includes polyamidoamine dendrimeric carbon dots and a polyamide membrane. The polyamidoamine dendrimeric dots are dispersed throughout the polyamide membrane.Type: GrantFiled: September 12, 2022Date of Patent: April 15, 2025Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Tawfik A. Saleh, Fahd Ibrahim AlGhunaimi, Norah Aljuryyed, Hind S. Aldossary
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Patent number: 12275899Abstract: Carbon nanofiber doped alumina (Al—CNF) supported MoCo catalysts in hydrodesulfurization (HDS), and/or boron doping, e.g., up to 5 wt % of total catalyst weight, can improve catalytic efficiency. Al—CNF-supported MoCo catalysts, (Al—CNF—MoCo), can reduce the sulfur concentration in fuel, esp. liquid fuel, to below the required limit in a 6 h reaction time. Thus, Al—CNF—MoCo has a higher catalytic activity than Al—MoCo, which may be explained by higher mesoporous surface area and better dispersion of MoCo metals on the AlCNF support relative to alumina support. The BET surface area of Al—MoCo may be 75% less than Al—CNF—MoCo, e.g., 166 vs. 200 m2/g. SEM images indicate that the catalyst nanoparticles can be evenly distributed on the surface of the CNF. The surface area of the AlMoCoB5% may be 206 m2/g, which is higher than AlMoCoB0% and AlMoCoB2%, and AlMoCoB5% has the highest HDS activity, removing more than 98% sulfur and below allowed levels.Type: GrantFiled: April 26, 2024Date of Patent: April 15, 2025Assignee: King Fahd University of Petroleum and MineralsInventors: Tawfik Abdo Saleh Awadh, Saddam Ahmed Al-Hammadi
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Patent number: 12277404Abstract: This disclosure represents an improved computer system and process to avoid the consequences of improper conversion of numbers and of rounding errors. This process makes the distinction between exact and inexact decimal floating-point numbers. If the result of a sequence of operation is exact, the user can trust that every decimal digit in the computed result is correct. On the other hand, if the input operands are inexact or the result cannot be computed exactly, a loss of significant digits occurs, and the user is warned of the loss. A novel representation is used for the inexact computed values. An estimate of the absolute error is also part of the representation.Type: GrantFiled: November 10, 2021Date of Patent: April 15, 2025Assignee: King Fahd University of Petroleum and MineralsInventor: Muhamed F. Mudawar