Patents by Inventor Marco Antônio da Silva BRAGA

Marco Antônio da Silva BRAGA 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).

  • Method and system for density correction for geophysical well logging inside drilling rods
    Patent number: 9778393
    Abstract: A method and system for estimating density of material surrounding a borehole in mineral exploration, the method including inserting a tool into a drilling rod located within a borehole, the tool having a gamma radiation source and at least one sensor; raising the tool within the drilling rod; receiving gamma count readings at the at least one sensor; sending the gamma count readings to a computing device; and removing effects of the drilling rod from the gamma count readings at the computing device to calculate a density of material surrounding the borehole.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: October 3, 2017
    Assignee: Vale S.A.
    Inventors: Wanderson Roberto Pereira, Dionisio Uendro Carlos, Marco Antônio da Silva Braga
  • Method and system for evaluation of gamma-gamma well logging data in mineral exploration
    Patent number: 9541671
    Abstract: A calibration site for a gamma-gamma well logging tool for use in mineral exploration, the calibration site having a column consisting of a plurality of blocks of known densities; and a borehole through the column configured to accept the gamma-gamma well logging tool. Further, a method for calibrating a gamma-gamma well logging tool at the calibration site, the method including lowering the gamma-gamma well logging tool into a column consisting of a plurality of blocks of different known densities and having a borehole therein to receive the gamma-gamma well logging tool; raising the gamma-gamma well logging tool at a set rate; capturing a radiation count at a sensor of the gamma-gamma well logging tool; converting the radiation count to a recorded density for a particular depth at a computing device; and comparing the recorded density at each position of the column with the known densities.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: January 10, 2017
    Assignee: Vale S.A.
    Inventors: Wanderson Roberto Pereira, Dionisio Uendro Carlos, Marco Antônio da Silva Braga, Henry Francisco Galbiatti
  • METHOD AND SYSTEM FOR DENSITY CORRECTION FOR GEOPHYSICAL WELL LOGGING INSIDE DRILLING RODS
    Publication number: 20150316679
    Abstract: A method and system for estimating density of material surrounding a borehole in mineral exploration, the method including inserting a tool into a drilling rod located within a borehole, the tool having a gamma radiation source and at least one sensor; raising the tool within the drilling rod; receiving gamma count readings at the at least one sensor; sending the gamma count readings to a computing device; and removing effects of the drilling rod from the gamma count readings at the computing device to calculate a density of material surrounding the borehole.
    Type: Application
    Filed: April 30, 2015
    Publication date: November 5, 2015
    Inventors: Wanderson Roberto PEREIRA, Dionisio Uendro CARLOS, Marco Antônio da Silva BRAGA