Patents by Inventor Bernhard R. Lungwitz

Bernhard R. Lungwitz 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 making rod-shaped particles for use as proppant and anti-flowback additive
    Patent number: 11427753
    Abstract: A method for forming rod-shaped particles includes reducing a length of rods derived from a slurry made up of particles and a reactant, wherein the rods are in a stabilized state in which the reactant has been at least partially reacted with a coagulant, but the rods have not been sintered, and subsequently sintering the reduced length stabilized rods. The reducing the length of the stabilized rods includes subjecting the stabilized rods to mechanical vibration applied by a device, or feeding the stabilized rods through a device having a rotating cutting mechanism.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: August 30, 2022
    Assignee: Schlumberger Technology Corporation
    Inventors: Jose Alberto Ortega Andrade, Jiangshui Huang, Bernhard R. Lungwitz
  • METHOD OF MAKING ROD-SHAPED PARTICLES FOR USE AS PROPPANT AND ANTI-FLOWBACK ADDITIVE
    Publication number: 20200190398
    Abstract: A method for forming rod-shaped particles includes reducing a length of rods derived from a slurry made up of particles and a reactant, wherein the rods are in a stabilized state in which the reactant has been at least partially reacted with a coagulant, but the rods have not been sintered, and subsequently sintering the reduced length stabilized rods. The reducing the length of the stabilized rods includes subjecting the stabilized rods to mechanical vibration applied by a device, or feeding the stabilized rods through a device having a rotating cutting mechanism.
    Type: Application
    Filed: February 10, 2020
    Publication date: June 18, 2020
    Inventors: Jose Alberto Ortega Andrade, Jiangshui Huang, Bernhard R. Lungwitz
  • Method of making rod-shaped particles for use as proppant and anti-flowback additive
    Patent number: 10557079
    Abstract: A method for forming rod-shaped particles includes reducing a length of rods derived from a slurry made up of particles and a reactant, wherein the rods are in a stabilized state in which the reactant has been at least partially reacted with a coagulant, but the rods have not been sintered, and subsequently sintering the reduced length stabilized rods. The reducing the length of the stabilized rods includes subjecting the stabilized rods to mechanical vibration applied by a device, or feeding the stabilized rods through a device having a rotating cutting mechanism.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: February 11, 2020
    Assignee: Schlumberger Technology Corporation
    Inventors: Jose Alberto Ortega Andrade, Jiangshui Huang, Bernhard R. Lungwitz
  • Perforated membranes and methods of making the same
    Patent number: 10391679
    Abstract: A method for forming a perforated membrane includes providing a mold having at least a first set of a plurality of rods extending to at least a first height from a base of the mold, introducing a curable material into the mold in an amount such that a height of the curable material from the base of the mold is less than or equal to the first height so that the first set of the plurality of rods are within the curable material and extend to or past the height of the curable material in the mold, curing the curable material, dissolving the first set of the plurality of rods to thereby form perforations in the cured material and removing the cured material having the perforations from the mold.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: August 27, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Jiangshui Huang, Jose Alberto Ortega Andrade, Bernhard R. Lungwitz
  • METHOD OF MAKING ROD-SHAPED PARTICLES FOR USE AS PROPPANT AND ANTI-FLOWBACK ADDITIVE
    Publication number: 20180022987
    Abstract: A method for forming rod-shaped particles includes reducing a length of rods derived from a slurry made up of particles and a reactant, wherein the rods are in a stabilized state in which the reactant has been at least partially reacted with a coagulant, but the rods have not been sintered, and subsequently sintering the reduced length stabilized rods. The reducing the length of the stabilized rods includes subjecting the stabilized rods to mechanical vibration applied by a device, or feeding the stabilized rods through a device having a rotating cutting mechanism.
    Type: Application
    Filed: July 22, 2016
    Publication date: January 25, 2018
    Inventors: Jose Alberto Ortega Andrade, Jiangshui Huang, Bernhard R. Lungwitz
  • PERFORATED MEMBRANES AND METHODS OF MAKING THE SAME
    Publication number: 20180021984
    Abstract: A method for forming a perforated membrane includes providing a mold having at least a first set of a plurality of rods extending to at least a first height from a base of the mold, introducing a curable material into the mold in an amount such that a height of the curable material from the base of the mold is less than or equal to the first height so that the first set of the plurality of rods are within the curable material and extend to or past the height of the curable material in the mold, curing the curable material, dissolving the first set of the plurality of rods to thereby form perforations in the cured material and removing the cured material having the perforations from the mold.
    Type: Application
    Filed: July 22, 2016
    Publication date: January 25, 2018
    Inventors: Jiangshui HUANG, Jose Alberto Ortega Andrade, Bernhard R. Lungwitz