Patents Assigned to King Fahd University of Petroleum & Minerals
  • Publication number: 20220251950
    Abstract: A method may include obtaining, in real-time, well data regarding a wellbore and drilling fluid data regarding drilling fluid circulating in the wellbore. The method may further include determining, based on the drilling fluid data, a plastic viscosity (PV) value and a yield point (YP) value regarding the drilling fluid. The method may further include determining, based on the well data and the drilling fluid data, an equivalent circulating density (ECD) value of an annulus of the wellbore. The method may further include determining a hole cleaning efficiency (HCE) value based on a hole cleaning model, the PV value, the YP value, and the ECD value. The method may further include determining an adjusted rate of penetration (ROP) value for a drilling operation in the wellbore based on the HCE value and a current ROP value. The method may further include transmitting a command to a drilling system that produces the adjusted ROP value in the drilling operation.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 11, 2022
    Applicants: SAUDI ARABIAN OIL COMPANY, KING FAHD UNIVERSITY OF PETROLEUM & MINERALS
    Inventors: Mohammed A. Al-Malki, Mahmoud F. Abughaban, Mohammed Murif Al-Rubaii, Abdullah S. Al-Yami, Salaheldin M. Elkatatny
  • Publication number: 20220250030
    Abstract: A biochar-derived adsorbent preferably from Sargassum boveanum, macroalgae can be used for removing phenolic compounds, such as 2,4,6-trichlorophenol and 2,4-dimethylphenol, from aqueous solutions. The carbonization can improve the removal capability of the macroalgae adsorbent for such phenolic compounds with removal efficiencies of 60% or more from high salinity seawater and 100% from distilled water. The adsorption may occur through a mixed mechanism dominated by physisorption following pseudo second-order kinetics. The adsorption of the phenolic molecules may be spontaneous, endothermic and thermodynamically favorable.
    Type: Application
    Filed: April 12, 2022
    Publication date: August 11, 2022
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mazen Khaled NAZAL, Nabeel Saeed ABUZAID
  • Patent number: 11407904
    Abstract: Methods of preparing waterborne polyurethane dispersions involving reacted units of a polyol, an acidic diol, a hydroxy functionalized polyhedral oligomeric silsesquioxane, a diisocyanate, and a chain extender. Polyurethane coatings based on these waterborne polyurethane dispersions are evaluated on their hydrophobicity (water contact angle), mechanical strength (e.g. tensile strength, Young's modulus, elongation at break), and antifouling properties.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: August 9, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mohammad Mizanur Rahman, Md. Hasan Zahir
  • Patent number: 11407928
    Abstract: A drilling fluid formulation which includes an aqueous phase, and additives including an organophilic clay, a gemini surfactant, and a polyacrylamide. The organophilic clay contains an ion-exchange reaction product of a clay material (e.g. smectite) and quaternary ammonium cations. The polyacrylamide contains reacted units of an acrylamide monomer, an acrylate monomer, and a hydrophobicity modifying monomer. Rheology properties of the drilling fluid including gel strength, yield stress, and storage modulus are specified. The additives present in the drilling fluid synergistically boost its shale swelling inhibition capability.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: August 9, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Muhammad Shahzad Kamal, Mamdouh A. Al-Harthi, Hafiz Mudaser Ahmad, S. M. Shakil Hussain, Mohamed Mahmoud
  • Patent number: 11408079
    Abstract: A corrosion inhibitor composition, which includes i) an aqueous alcohol base fluid, ii) a mixture of at least three polysaccharides selected from carboxymethyl cellulose, gum arabic, pectin, a salt of alginic acid, chitosan, dextran, hydroxyethyl cellulose, and soluble starch, with each polysaccharide that is present in the mixture being present in an amount of 0.05 to 0.5 wt. %, based on a total weight of the corrosion inhibitor composition, iii) silver nanoparticles, and iv) a pineapple leaves extract. A method of inhibiting corrosion of metal during acid cleaning/pickling whereby the metal is treated with an acidic treatment fluid containing an acid and the corrosion inhibitor composition.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: August 9, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Moses M. Solomon, Saviour A. Umoren
  • Patent number: 11407929
    Abstract: A method is described for removing a barite-quartz and a calcite-quartz filter cake from a well bore. The method involves contacting the filter cake with a first composition comprising NH4F, NaBrO3, NH4Cl, and NaNO2. The NH4Cl and NaNO2 react exothermically, and the heat produced drives the endothermic reaction of NH4F and NaBrO3, which produces HF for dissolution of the quartz in the filter cake. Filter cake comprising barite may be further treated with a second composition comprising a converting agent and a chelating agent. Filter cake comprising calcite may be treated with a first composition having an excess of NH4Cl and NaBrO3, which react to produce HCl for calcite dissolution.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: August 9, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Badr Ba Geri, Ibrahim Gomaa, Mohamed Mahmoud, Shirish Patil
  • Patent number: 11412039
    Abstract: A method, network system, and non-transitory computer readable medium that arrange a set of wireless mobile devices into a two-level clustering structure including a cluster in a first-level and a cluster in the second-level, based on node status registered and algorithm preinstalled in a back-end server, where each of the set of wireless mobile devices is assigned either one of a slave member of a cluster in the first-level, a master of a cluster in the first-level where the master is also a member of a cluster in the second-level, or a super master of a cluster in the second-level where a master of a cluster in the first-level is assigned as the super master. The two-level clustering structure is periodically updated. Only the super-masters are configured to communicate with the back-end server via a long-range connection to WLAN, while a short-range wireless interface is used for internal communications.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: August 9, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Abdulrahman Abu Elkhail, Uthman Baroudi, Hesham Alfares
  • Patent number: 11408084
    Abstract: A thin film electrode involving a nanostructured catalytic material deposited onto a surface of a conducting substrate and method of making is described. The nanostructured catalytic material contains cobalt oxide nanoflowers having a central core and nanopetals extending from the central core. The method of making the thin film electrode involves contacting the conducting substrate with an aerosol containing a cobalt complex and a solvent. A method of using the thin film electrode in an electrochemical cell for water splitting is also provided.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: August 9, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Muhammad Ali Ehsen, Abbas Saeed Hakeem, Abdul Rehman
  • Patent number: 11411533
    Abstract: A system, method, and solar photovoltaic (PV) network for solar PV variability reduction with reduced time delays and battery storage optimization are described. The system includes a Moving Regression (MR) filter; a State of Charge (SoC) feedback control; and a Battery Energy Storage System (BESS). The MR filter, SoC feedback control and BESS are configured to provide smoothing of solar PV variabilities. The MR filter is a non-parametric smoother that utilizes a machine learning concept of linear regression to smooth out solar PV variations at every time step.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: August 9, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Muhammad Khalid, Miswar Akhtar Syed
  • Patent number: 11407933
    Abstract: A method of controlling the fracture location, orientation, and reduce the breakdown pressure in multistage fracturing, particularly of unconventional reservoirs. Acid etching can be used to initiate small channels (wormholes) around the horizontal well, followed by the hydraulic fracturing fluid to create the fractures. The fracture orientation can follow the same direction of the etched part of the well and in the same location of the wormholes. The breakdown pressure can be reduced by 5, 10, 15%, or more, e.g., from 2200 to 1800 psi after acid etching which can minimize the pumping requirements at the surface and break the formation with very high breakdown pressure.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: August 9, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mohamed Mahmoud, Abdelwahab Ali Zaki
  • Patent number: 11411322
    Abstract: Aspects of the disclosure provide an antenna system. The antenna system can include a dielectric substrate that has a top surface and a bottom surface covered by a ground plane, and four identical antenna elements symmetrically distributed on each corner of the bottom surface. Each antenna element can have a concentric-pentagonal-slot-based structure that is etched out of the ground plane, and includes an outer pentagonal slot and an inner pentagonal slot. Each side of the outer pentagonal slot can be parallel with a corresponding side of the inner pentagonal slot.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: August 9, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mohammad S. Sharawi, Rifaqat Hussain
  • Patent number: 11401436
    Abstract: A method for forming a nanocomposite coating on a substrate is described. The nanocomposite substrate comprises polyethylene, functionalized carbon nanotubes, and nanoclay. The method may use microparticles of UHMWPE with functionalized carbon nanotubes and clay nanoplatelets to form a powder mixture, which is then applied to a heated substrate to form the nanocomposite coating. The nanocomposite coating may have a Vickers hardness of 10.5-12.5 HV and a debonding strength of at least 25 N.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: August 2, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mohammed Abdul Samad, Muhammad Umar Azam
  • Publication number: 20220239266
    Abstract: A digitally controlled grounded capacitor multiplier includes: a single capacitor directly connected at one end to an input voltage and at another end to a negative input of an operational amplifier; the operational amplifier including a negative feedback loop; and a digitally controlled current amplifier (DCCA) connected to an output of the operational amplifier. The DCCA digitally controls the digitally controlled grounded capacitor multiplier. The digitally controlled grounded capacitor multiplier comprises only two active devices consisting of the operational amplifier and the DCCA.
    Type: Application
    Filed: March 5, 2021
    Publication date: July 28, 2022
    Applicants: SAUDI ARABIAN OIL COMPANY, KING FAHD UNIVERSITY OF PETROLEUM & MINERALS
    Inventors: Abdulrahman Alshuhail, Hussain Alzaher, Alaa El-Din Hussein
  • Publication number: 20220228514
    Abstract: An integrated chemical looping combustion (CLC) electrical power generation system and method for diesel fuel combining four primary units including: gasification of diesel to ensure complete conversion of fuel, chemical looping combustion with supported nickel-based oxygen carrier on alumina, gas turbine-based power generation and steam turbine-based power generation is described. An external combustion and a heat recovery steam generator (HRSG) are employed to maximize the efficiency of a gas turbine generator and steam turbine generator. The integrated CLC system provides a clean and efficient diesel fueled power generation plant with high CO2 recovery.
    Type: Application
    Filed: March 30, 2022
    Publication date: July 21, 2022
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mohammad Mozahar HOSSAIN, Muflih Arisa ADNAN, Iswan PRADIPTYA
  • Publication number: 20220219143
    Abstract: A functionalized silica sorbent is described. The sorbent comprises mesoporous silica nanoparticles having a surface functionalized with a conjugated system comprising an azole and a phenyl. The surface may be functionalized by a Cu-catalyzed click reaction. The nanoparticles have an average particle size of 10-80 nm, and may be used to adsorb phenolic contaminants from aqueous solutions.
    Type: Application
    Filed: March 30, 2022
    Publication date: July 14, 2022
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Khalid ALHOOSHANI, Abdulkadir TANIMU
  • Publication number: 20220219149
    Abstract: A method of making a hydrodesulfurization catalyst having nickel and molybdenum supported on activated carbon is specified. The hydrodesulfurization catalyst produced is mesoporous having an average pore diameter of 4-10 nm and a BET surface area of 250-500 m2/g. The utilization of the hydrodesulfurization catalyst in treating a hydrocarbon feedstock containing aromatic sulfur compounds (e.g. dibenzothiophene) to produce a desulfurized hydrocarbon stream is also provided.
    Type: Application
    Filed: March 31, 2022
    Publication date: July 14, 2022
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Tawfik Abdo Saleh AWADH, Umar Cheche ABUBAKAR
  • Publication number: 20220220361
    Abstract: A well cleanup process involves removing an impermeable filter cake from a formation face with thermochemical and chelating agents to allow formation fluids to flow from a reservoir to a wellbore. The method may be used with oil and water-based drilling fluids with varied weighting agents, e.g., bentonite, calcium carbonate, or barite. Such thermochemical agents may involve two salts, e.g., NO2? and NH4+, which, when mixed together, can generate pressure and heat, in addition to hot H2O and/or N2. For example, the thermochemical agents may comprise Na+, K+, Li+, Cs+, Mg2+, Ca2+, and/or Ba2+ with NO2? and NH4+ with F?, Cl?, Br?, I?, CO32?, NO3?, CiO4?, and/or ?OH.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Applicant: King Fahd University of Petroleum and Minerals
    Inventor: Mohamed MAHMOUD
  • Publication number: 20220219148
    Abstract: A method of making a hydrodesulfurization catalyst having nickel and molybdenum supported on activated carbon is specified. The hydrodesulfurization catalyst produced is mesoporous having an average pore diameter of 4-10 nm and a BET surface area of 250-500 m2/g. The utilization of the hydrodesulfurization catalyst in treating a hydrocarbon feedstock containing aromatic sulfur compounds (e.g. dibenzothiophene) to produce a desulfurized hydrocarbon stream is also provided.
    Type: Application
    Filed: March 31, 2022
    Publication date: July 14, 2022
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Tawfik Abdo Saleh Awadh, Umar Cheche Abubakar
  • Publication number: 20220224312
    Abstract: A tunable impedance multiplier with high multiplication factor is described. A single externally connected resistor is used and the multiplier is free of passive elements. The circuit can realize a positive or a negative impedance multiplier. Applications of the design to low and high pass filters are also presented. The simulation and experimental results show that the new design enjoys a multiplication factor above 400 at 2 Hz-to 7 MHz.
    Type: Application
    Filed: March 31, 2022
    Publication date: July 14, 2022
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Munir AL-ABSI, Muhammad T. ABUELMA'ATTI
  • Publication number: 20220220360
    Abstract: A well cleanup process involves removing an impermeable filter cake from a formation face with thermochemical and chelating agents to allow formation fluids to flow from a reservoir to a wellbore. The method may be used with oil and water-based drilling fluids with varied weighting agents, e.g., bentonite, calcium carbonate, or barite. Such thermochemical agents may involve two salts, e.g., NO2? and NH4+, which, when mixed together, can generate pressure and heat, in addition to hot H2O and/or N2. For example, the thermochemical agents may comprise Na+, K+, Li+, Cs+, Mg2+, Ca2+, and/or Ba2+ with NO2? and NH4+ with F?, Cl?, Br?, I?, CO32?, NO3?, ClO4?, and/or ?OH.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Applicant: King Fahd University of Petroleum and Minerals
    Inventor: Mohamed Mahmoud