Patents by Inventor Mohamed Sayed

Mohamed Sayed has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11015111
    Abstract: Presented herein are methods and systems for mitigating condensate banking for example, by altering the wettability of a rock formation in the vicinity of a wellbore for a gas condensate reservoir.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: May 25, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Mohammed Sayed, Feng Liang, Hooisweng Ow, Jason Cox
  • Publication number: 20210135589
    Abstract: A power converter having a dynamic bus controller to control a rectifier DC output for motoring and regenerating power flow directions, in which the controller controls a DC bus voltage between first and second regenerating voltage limits and limits power at the DC output in an increasing fashion with increasing values of the DC bus voltage according to a regenerating power limit parameter for a regenerating direction of power flow at a DC output. For a motoring direction of power flow at the DC output, the controller controls the DC bus voltage at the DC output between first and second motoring voltage limits and limits the power at the DC output in a decreasing fashion with increasing values of the DC bus voltage according to a motoring power limit parameter.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 6, 2021
    Applicant: Rockwell Automation Technologies, Inc.
    Inventors: Ahmed S. Mohamed Sayed Ahmed, Steven M. Wirtz, Joseph S. Klak
  • Patent number: 10988681
    Abstract: Methods for producing proppants with a nanocomposite proppant coating are provided. The methods include coating the proppant particles with a nano-reinforcing agent, a surface modifier, and a resin to produce proppants with nanocomposite proppant coating. Additionally, a proppant comprising a proppant particle and a nanocomposite proppant coating is provided. The nanocomposite proppant coating includes a nano-reinforcing agent, a surface modifier, and a resin. The nanocomposite proppant coating coats the proppant particle. Additionally, a method for increasing a rate of hydrocarbon production from a subsurface formation through the use of the proppants is provided.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: April 27, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Mohammad Hamidul Haque, Rajesh Kumar Saini, Mohammed Sayed
  • Publication number: 20210079294
    Abstract: Methods for producing proppants with a fluorinated polyurethane proppant coating are provided. The methods include coating the proppant particles with a strengthening agent, a strengthening agent, and a resin to produce proppants with fluorinated polyurethane proppant coating. Additionally, a proppant comprising a proppant particle and a fluorinated polyurethane proppant coating is provided. The fluorinated polyurethane proppant coating includes a strengthening agent, a strengthening agent, and a resin. The fluorinated polyurethane proppant coating coats the proppant particle. Additionally, a method for increasing a rate of hydrocarbon production from a subsurface formation through the use of the proppants is provided.
    Type: Application
    Filed: September 17, 2019
    Publication date: March 18, 2021
    Applicant: Saudi Arabian Oil Company
    Inventors: Rajesh Kumar Saini, Mohammad Haque, Mohammed Sayed
  • Publication number: 20210075311
    Abstract: For grid-connected power converter control, a method estimates a d-axis grid voltage from a d-axis reference current modified with a d-axis current and a q-axis current modified with a filter inductive reactance. The method generates a q-axis current error from a direct current (DC) voltage input and a DC bus voltage. The method estimates an observer q-axis grid voltage from a q-axis voltage output. The q-axis grid voltage observer estimates the q-axis grid voltage in a direct/quadrature (dq) reference frame equivalent to an ABC to DQ reference frame transform. The method determines a d-axis voltage output as a function of a d-axis current error and a q-axis current modified with a filter inductive reactance. The method determines a q-axis voltage output as a sum of the q-axis current controller output and the observer q-axis grid voltage.
    Type: Application
    Filed: November 18, 2020
    Publication date: March 11, 2021
    Inventors: Lei Jin, Haihui Lu, Ahmed S. Mohamed Sayed Ahmed, Rob J Miklosovic
  • Publication number: 20210054263
    Abstract: Methods for producing proppant with nanoparticle proppant coating are provided. The methods include coating the proppant particles with a strengthening agent, functionalized nanoparticles, and unfunctionalized organic resin to produce proppant with nanoparticle proppant coating. Additionally, a proppant comprising a proppant particle and a nanoparticle proppant coating is provided. The nanoparticle proppant coating includes a strengthening agent, functionalized nanoparticles, and unfunctionalized organic resin. The nanoparticle proppant coating coats the proppant particle. Additionally, a method for increasing a rate of hydrocarbon production from a subsurface formation through the use of the proppant is provided.
    Type: Application
    Filed: August 22, 2019
    Publication date: February 25, 2021
    Applicant: Aramco Services Company
    Inventors: Rajesh Kumar Saini, Mohammad Hamidul Haque, Mohammed Sayed
  • Patent number: 10895140
    Abstract: Compositions and methods for the controlled delivery of acid to a desired location. In some embodiments, methods for in situ acid stimulation of a subterranean formation that contains a hydrocarbon reservoir comprise contacting the formation with an aqueous fluid that comprises (a) an ammonium salt capable of being oxidized to produce acid and (b) an oxidizing agent capable of oxidizing the ammonium salt, where the ammonium salt and oxidizing agent react to produce an acid.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: January 19, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Amy J. Cairns, Katherine L. Hull, Mohammed Sayed
  • Patent number: 10894915
    Abstract: A stabilized emulsified acid composition for deep carbonate formation stimulation is provided. The stabilized acid emulsion composition includes a petroleum operable to provide a barrier between an acid and a reservoir rock, the acid operable to react with the reservoir rock to dissolve the reservoir rock and produce a wormhole, a functional framework operable to stabilize the stabilized acid emulsion, an emulsifier operable to stabilize the stabilized acid emulsion, and a corrosion inhibitor operable to provide protection against corrosion for the metal components of a well. The petroleum can be diesel. The acid can be hydrochloric acid. The functional framework can be selected from the group comprising surface-modified clay-based material, zeolites, hybrid organic-inorganic materials, covalent-organic framework materials, and boron nitride nanotubes, and combinations thereof. The functional framework can be a surface-modified clay material selected from an organoclay.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: January 19, 2021
    Inventors: Amy J. Cairns, Ghaithan A. Al-Muntasheri, Mohammed Sayed, Liling Fu, Genggeng Qi, Emmanuel P. Giannelis
  • Patent number: 10862332
    Abstract: For grid-connected power converter control, a method estimates a d-axis grid voltage from a d-axis reference current modified with a d-axis current, and a q-axis current modified with a filter inductive reactance. The method generates a q-axis grid voltage from a direct current (DC) voltage input modified with the DC bus voltage modified with a notch filter to balance the voltage input and further reduced with the q-axis current. The method modifies the estimated d-axis grid voltage and the q-axis grid voltage by selectively removing second-order harmonics. The method further determines a d-axis voltage output and a q-axis voltage output as a function of the modified estimated d-axis grid voltage and the modified q-axis grid voltage.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: December 8, 2020
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Lei Jin, Haihui Lu, Karthik Palaniappan, Ahmed S. Mohamed Sayed Ahmed
  • Patent number: 10848075
    Abstract: An active rectifier with a controller including a feedforward component, a modulator and a modulation index controller. The modulator generates switching control signals according to a reference to convert AC input power from the AC input to control the DC bus voltage at the DC output. The feedforward component computes the reference according to an estimated total inductance of the AC input, a grid voltage of the AC input, a modulation index reference, and a reactive power offset signal, and the modulation index controller computes the reactive power offset signal according to an error between the modulation index reference and a feedback modulation index.
    Type: Grant
    Filed: December 7, 2019
    Date of Patent: November 24, 2020
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Ahmed S. Mohamed Sayed Ahmed, Ehsan Al-Nabi, Zhendong Zhang, Sang Woo Nam
  • Publication number: 20200339867
    Abstract: A method of altering wettability of a subterranean formation penetrated by a well is described. A first oxidizer including a persulfate is introduced to the subterranean formation. A second oxidizer including a bromate is introduced to the subterranean formation. The well is shut in for a period of time to allow the first oxidizer and the second oxidizer to alter the wettability of the subterranean formation toward non-wetting of oil and of water.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 29, 2020
    Inventors: Katherine Leigh Hull, Mohammed Sayed
  • Patent number: 10811990
    Abstract: An active rectifier includes first and second DC nodes, a switching circuit, and a controller configured to compute a voltage reference according to a load signal of the DC output, and a non-linear relationship between a load condition of the DC output and a DC bus voltage at the DC output, and to generate rectifier switching control signals according to the voltage reference to cause the switching circuit to convert AC input power from the AC input to control the DC bus voltage at the DC output.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 20, 2020
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Ahmed S. Mohamed Sayed Ahmed, Lixiang Wei, Ehsan Al-Nabi, Nirav Patel, Sang Woo Nam
  • Publication number: 20200313566
    Abstract: An active rectifier with a controller including a feedforward component, a modulator and a modulation index controller. The modulator generates switching control signals according to a reference to convert AC input power from the AC input to control the DC bus voltage at the DC output. The feedforward component computes the reference according to an estimated total inductance of the AC input, a grid voltage of the AC input, a modulation index reference, and a reactive power offset signal, and the modulation index controller computes the reactive power offset signal according to an error between the modulation index reference and a feedback modulation index.
    Type: Application
    Filed: December 7, 2019
    Publication date: October 1, 2020
    Applicant: Rockwell Automation Technologies, Inc.
    Inventors: Ahmed S. Mohamed Sayed Ahmed, Ehsan Al-Nabi, Zhendong Zhang, Sang Woo Nam
  • Publication number: 20200313565
    Abstract: An active rectifier includes first and second DC nodes, a switching circuit, and a controller configured to compute a voltage reference according to a load signal of the DC output, and a non-linear relationship between a load condition of the DC output and a DC bus voltage at the DC output, and to generate rectifier switching control signals according to the voltage reference to cause the switching circuit to convert AC input power from the AC input to control the DC bus voltage at the DC output.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Applicant: Rockwell Automation Technologies, Inc.
    Inventors: Ahmed S. Mohamed Sayed Ahmed, Lixiang Wei, Ehsan Al-Nabi, Nirav Patel, Sang Woo Nam
  • Publication number: 20200301425
    Abstract: Methods, apparatus, and systems are disclosed for performing radio station monitoring using unmanned aerial vehicles. An example unmanned aerial vehicle disclosed herein includes a radio receiver to receive a radio broadcast from at least one radio station, a watermark detector to detect a watermark in the received radio broadcast, and a communication transceiver to report at least one of a detected watermark or information associated with the detected watermark to a remote receiver.
    Type: Application
    Filed: March 21, 2019
    Publication date: September 24, 2020
    Inventors: Timothy Christian, Mohammed Sayed, Gloria Bautista
  • Publication number: 20200303943
    Abstract: For grid-connected power converter control, a method estimates a d-axis grid voltage from a d-axis reference current modified with a d-axis current, and a q-axis current modified with a filter inductive reactance. The method generates a q-axis grid voltage from a direct current (DC) voltage input modified with the DC bus voltage modified with a notch filter to balance the voltage input and further reduced with the q-axis current. The method modifies the estimated d-axis grid voltage and the q-axis grid voltage by selectively removing second-order harmonics. The method further determines a d-axis voltage output and a q-axis voltage output as a function of the modified estimated d-axis grid voltage and the modified q-axis grid voltage.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 24, 2020
    Inventors: Lei Jin, Haihui Lu, Karthik Palaniappan, Ahmed S. Mohamed Sayed Ahmed
  • Publication number: 20200270514
    Abstract: Provided herein are compositions and methods for treating wells in geologic formations. The method involves introducing a first aqueous composition containing an organic acid into a well, introducing a second aqueous composition into the well, and forming a third composition useful for stimulating wells, fracturing geologic formations, and cleaning wells of filter cakes and other well blockages.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 27, 2020
    Inventors: Ahmed M. Gomaa, Mohammed A. Bataweel, Mohammed Sayed, Amy J. Cairns, Aslan Bulekbay, Khalid R. Alnoaimi
  • Publication number: 20200231864
    Abstract: The present application relates to methods and systems for mitigating condensate banking. In some embodiments, the methods and systems involve altering the wettability of a rock formation in the vicinity of a wellbore for a gas condensate reservoir.
    Type: Application
    Filed: January 2, 2020
    Publication date: July 23, 2020
    Inventors: Rajesh Kumar Saini, Mohammed Sayed, Hooisweng Ow, Mohammad Haque, Amy J. Cairns
  • Publication number: 20200228024
    Abstract: A system may include a power converter and a control system communicatively coupled to the power converter. The control system may determine a first DC voltage associated with the DC bus based on one or more DC external capacitance values that correspond to one or more loads coupled to the power converter. The control system may also determine a second DC voltage associated with the DC bus based on a capacitance of a system in which the power converter operates. The control system may also determine a third DC voltage associated with the DC bus based on the first DC voltage and the second DC voltage and adjust an operation of the power converter based on the third DC voltage.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 16, 2020
    Inventors: Robert J. Miklosovic, Ahmed Mohamed Sayed Ahmed
  • Publication number: 20200116001
    Abstract: The present application describes compositions and methods for the controlled delivery of acid to a desired location, for example to a subterranean formation.
    Type: Application
    Filed: October 10, 2019
    Publication date: April 16, 2020
    Inventors: Mohammed Sayed, Katherine L. Hull, Rajesh Kumar Saini