Patents by Inventor Marcele Abreu LOPES

Marcele Abreu LOPES 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 for extracting precursor acids from calcium naphthenate deposits
    Patent number: 9983187
    Abstract: The present invention is a system for the extraction and quantification of tetraprotic naphthenic acids present in oils, precursors of the formation of calcium naphthenates, which are potential formers of deposits, causing of damage to pieces of equipment used in the oil production industry.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: May 29, 2018
    Assignee: PETROLEO BRASILEIRO S.A.-PETROBRAS
    Inventors: Flávio Cortiñas Albuquerque, Rafael dos Santos Nascimento de Brito, Marcele Abreu Lopes
  • SYSTEM FOR EXTRACTING PRECURSOR ACIDS FROM CALCIUM NAPHTHENATE DEPOSITS AND METHOD
    Publication number: 20160153956
    Abstract: The present invention is a system for the extraction and quantification of tetraprotic naphthenic acids present in oils, precursors of the formation of calcium naphthenates, which are potential formers of deposits, causing of damage to pieces of equipment used in the oil production industry.
    Type: Application
    Filed: September 22, 2015
    Publication date: June 2, 2016
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Flávio Cortiñas ALBUQUERQUE, Rafael dos Santos NASCIMENTO de BRITO, Marcele Abreu LOPES