Patents by Inventor Maria das Dores M. Paiva

Maria das Dores M. Paiva 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).

  • Methods for producing fluid invasion resistant cement slurries
    Patent number: 10047587
    Abstract: Embodiments including methods comprising providing a wellbore in a subterranean formation having a wellbore length; providing a proposed cement slurry formulation; calculating a normalized pressure at a point along the wellbore length based on properties of the proposed cement slurry formulation and properties of the wellbore in the subterranean formation; manipulating the proposed cement slurry formulation based on the normalized pressure so as to produce a fluid invasion resistant cement slurry; introducing the fluid invasion resistant cement slurry into the wellbore; and cementing the fluid invasion resistant cement slurry in the wellbore.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: August 14, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Flavio H. Marchesini, Rafael Menezes De Oliveira, Merouane Khammar, Ashok K. Santra, Maria das Dores M. Paiva
  • Methods for producing fluid migration resistant cement slurries
    Patent number: 9624419
    Abstract: Methods including providing a wellbore in a subterranean formation; providing a proposed cement slurry; calculating a fluid migration threshold; manipulating the proposed cement slurry based on the fluid migration threshold so as to produce a fluid migration resistant cement slurry; introducing the fluid migration resistant cement slurry into the wellbore in the subterranean formation; and curing the fluid migration resistant cement slurry in the wellbore in the subterranean formation.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: April 18, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Merouane Khammar, Flavio H. Marchesini, Ashok Santra, Maria das Dores M. Paiva, Thomas Sodhi
  • METHODS FOR PRODUCING FLUID INVASION RESISTANT CEMENT SLURRIES
    Publication number: 20150284621
    Abstract: Embodiments including methods comprising providing a wellbore in a subterranean formation having a wellbore length; providing a proposed cement slurry formulation; calculating a normalized pressure at a point along the wellbore length based on properties of the proposed cement slurry formulation and properties of the wellbore in the subterranean formation; manipulating the proposed cement slurry formulation based on the normalized pressure so as to produce a fluid invasion resistant cement slurry; introducing the fluid invasion resistant cement slurry into the wellbore; and cementing the fluid invasion resistant cement slurry in the wellbore.
    Type: Application
    Filed: October 21, 2013
    Publication date: October 8, 2015
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Flavio H. Marchesini, Rafael Menezes De Oliveira, Merouane Khammar, Ashok K. Santra, Maria das Dores M. Paiva
  • Methods for Producing Fluid Migration Resistant Cement Slurries
    Publication number: 20150232736
    Abstract: Embodiments described herein include methods comprising providing a wellbore in a subterranean formation; providing a proposed cement slurry; calculating a fluid migration threshold; manipulating the proposed cement slurry based on the fluid migration threshold so as to produce a fluid migration resistant cement slurry; introducing the fluid migration resistant cement slurry into the wellbore in the subterranean formation; and curing the fluid migration resistant cement slurry in the wellbore in the subterranean formation.
    Type: Application
    Filed: January 2, 2014
    Publication date: August 20, 2015
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Merouane Khammar, Flavio Marchesini, Ashok Santra, Maria das Dores M. Paiva, Thomas Sodhi