Patents by Inventor Marco Antonio HERNANDEZ ROJO

Marco Antonio HERNANDEZ ROJO 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: 11962044
    Abstract: The present invention offers some general specifications for the design, assembly, and adaptation of a rotating cylinder electrochemical cell into an autoclave, of a high temperature and pressure system for corrosion studies that simulate operating conditions in pipelines, as well as the operation and safety of an autoclave to evaluate the electrochemical process of metal surfaces exposed to aggressive aqueous solutions. The electrochemical cell consists of an array of three electrodes that include a rotating cylinder electrode designed to operate hermetically, a reference electrode and an auxiliary electrode. The rotating cylinder electrode is considered to be the working electrode, where the oxidation and electrochemical reduction processes are studied. However, the use of the method described in this work can be extended to other testing environments and materials by taking into account the physical and chemical properties of the fluids and materials to be used in order to avoid any risk for the operator.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: April 16, 2024
    Assignee: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Eliceo Sosa Hernandez, Marco Antonio Dominguez Aguilar, Hongbo Liu, Jorge Luis Alamilla Lopez, Jorge Flores Castillo, Marco Antonio Hernandez Rojo, Ivan Velazquez Ovando, Cesar Mendez Romero, Luis Manuel Quej Ake
  • Publication number: 20220276116
    Abstract: The present disclosure integrates several methodologies for the detection and location of leaks in pipelines that transport hydrocarbons in liquid or gaseous phase. Detection is achieved through the management and processing of the data obtained by various measuring devices installed at strategic points on the pipeline infrastructure, this system does not alter neither structure nor mechanics of pipe and in case of a leak or flow caused by unauthorized actions, sensor system collect information on the physical variables of the fluid. This system may be made up of acoustic monitoring techniques, detection of negative pressure waves, as well as methods of mass and energy balance, integrated by multiple sensors, which are managed and controlled by electronic systems that process the information to determine the point of occurrence of a leak in digital maps.
    Type: Application
    Filed: February 23, 2022
    Publication date: September 1, 2022
    Inventors: Sergiy Sadovnychiy, Juan Manuel López Carreto, Edgar Alberto Canul García, Marco Antonio Hernández Rojo, Fernando Real Gómez, Samuel Eduardo Moya Ochoa, Volodymyr Ponomaryov
  • Publication number: 20210167350
    Abstract: The present invention offers some general specifications for the design, assembly, and adaptation of a rotating cylinder electrochemical cell into an autoclave, of a high temperature and pressure system for corrosion studies that simulate operating conditions in pipelines, as well as the operation and safety of an autoclave to evaluate the electrochemical process of metal surfaces exposed to aggressive aqueous solutions. The electrochemical cell consists of an array of three electrodes that include a rotating cylinder electrode designed to operate hermetically, a reference electrode and an auxiliary electrode. The rotating cylinder electrode is considered to be the working electrode, where the oxidation and electrochemical reduction processes are studied. However, the use of the method described in this work can be extended to other testing environments and materials by taking into account the physical and chemical properties of the fluids and materials to be used in order to avoid any risk for the operator.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 3, 2021
    Inventors: Eliceo SOSA HERNANDEZ, Marco Antonio DOMINGUEZ AGUILAR, Hongbo LIU, Jorge Luis ALAMILLA LOPEZ, Jeorge FLORES CASTILLO, Marco Antonio HERNANDEZ ROJO, Ivan VELAZQUEZ OVANDO, Cesar MENDEZ ROMERO, Luis Manuel QUEJ AKE
  • Patent number: 8275549
    Abstract: The online measurement system of radioactive tracers in oil wells head, object of this invention, is characterized by the use of new technology to measure concentrations of tracer activity in real time, using a radiation detector NaI (TI), with features that make it possible to detect up to three different tracers and be able to operate in temperature conditions up to 150° C., which allows to be immersed in a container with fluid coming from the flow stream, achieving with this to increase the sensitivity of the measurements. This system of measurement in the head of production wells will allow having much more data of the tracer activity, avoiding having to transport the operational staff to production wells to carry out sampling test, with all the advantages that this represents.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: September 25, 2012
    Assignee: Instituto Mexicano del Petroleo
    Inventors: Jetzabeth Ramírez Sabag, Luis Rubén Amado Hidalgo, Saúl Diaz Jiménez, Marco Antonio Hernández Rojo
  • Publication number: 20110040484
    Abstract: The online measurement system of radioactive tracers in oil wells head, object of this invention, is characterized by the use of new technology to measure concentrations of tracer activity in real time, using a radiation detector NaI (TI), with features that make it possible to detect up to three different tracers and be able to operate in temperature conditions up to 150° C., which allows to be immersed in a container with fluid coming from the flow stream, achieving with this to increase the sensitivity of the measurements. This system of measurement in the head of production wells will allow having much more data of the tracer activity, avoiding having to transport the operational staff to production wells to carry out sampling test, with all the advantages that this represents.
    Type: Application
    Filed: August 11, 2010
    Publication date: February 17, 2011
    Applicant: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Jetzabeth RAMIREZ SABAG, Luis Ruben AMADOR HIDALGO, Saul DIAZ JIMENEZ, Marco Antonio HERNANDEZ ROJO