Patents by Inventor Christopher John MEAD

Christopher John MEAD 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 of restraining migration of formation solids in a wellbore
    Patent number: 11255166
    Abstract: Migration of formation solids in a wellbore is restrained by feeding a slurry, comprising water, a viscosifier, and a concentration of cement clinker particles, into the wellbore, and hydrating the clinker particles in the wellbore. The clinker particles are kept in suspension during the hydrating, and upon completion of the hydrating the hydrated clinker particles form a hardened cement consisting of a permeable structure of interconnected hydrated clinker particles. A layer of degradable lost circulation material (LCM) may be employed to separate the slurry with clinker particles from the formation surrounding the wellbore during hydrating of the clinker particles.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: February 22, 2022
    Assignee: SHELL OIL COMPANY
    Inventors: Guy Lode Magda Maria Verbist, Gerardus Johannes Leonardus Van Der Wegen, Gideon Langedijk, Erik Kerst Cornelissen, Peter Jan Bleeker, James Frank Heathman, Christopher John Mead
  • METHOD OF RESTRAINING MIGRATION OF FORMATION SOLIDS IN A WELLBORE
    Publication number: 20200291755
    Abstract: Migration of formation solids in a wellbore is restrained by feeding a slurry, comprising water, a viscosifier, and a concentration of cement clinker particles, into the wellbore, and hydrating the clinker particles in the wellbore. The clinker particles are kept in suspension during the hydrating, and upon completion of the hydrating the hydrated clinker particles form a hardened cement consisting of a permeable structure of interconnected hydrated clinker particles. A layer of degradable lost circulation material (LCM) may be employed to separate the slurry with clinker particles from the formation surrounding the wellbore during hydrating of the clinker particles.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 17, 2020
    Inventors: Guy Lode Magda Maria VERBIST, Gerardus Johannes Leonardus VAN DER WEGEN, Gideon LANGEDIJK, Erik Kerst CORNELISSEN, Peter Jan BLEEKER, James Frank HEATHMAN, Christopher John MEAD