Patents by Inventor Karn Agarwal

Karn Agarwal 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).

  • Systems and methods for hybrid model hydraulic fracture pressure forecasting
    Patent number: 12332399
    Abstract: A system for determining pressure in a hydraulic fracturing system for a well includes a processing module executing code and configured to receive a plurality of input parameters. The processing module can predict either a bottomhole pressure, based on statistical predictions and physics-based predictions, or a surface pressure based on the predicted bottomhole pressure.
    Type: Grant
    Filed: September 7, 2023
    Date of Patent: June 17, 2025
    Assignee: Liberty Energy Services LLC
    Inventors: Leen Weijers, Andrew Bonnell, Ely Lolon, Zhijun Liu, Karn Agarwal, Robert Henderson, Michael Mayerhofer
  • SYSTEMS AND METHODS FOR HYBRID MODEL HYDRAULIC FRACTURE PRESSURE FORECASTING
    Publication number: 20230417950
    Abstract: A system for determining pressure in a hydraulic fracturing system for a well includes a processing module executing code and configured to receive a plurality of input parameters. The processing module can predict either a bottomhole pressure, based on statistical predictions and physics-based predictions, or a surface pressure based on the predicted bottomhole pressure.
    Type: Application
    Filed: September 7, 2023
    Publication date: December 28, 2023
    Inventors: Leen Weijers, Andrew Bonnell, Ely Lolon, Zhijun Liu, Karn Agarwal, Robert Henderson, Michael Mayerhofer
  • Using downhole strain measurements to determine hydraulic fracture system geometry
    Patent number: 10125605
    Abstract: The use of a distributed fiber optic strain sensor system in horizontal hydraulic fracturing wells to determine several measurements of hydraulic fracture system geometry including number of far-field fractures, hydraulic and propped fracture length, fracture azimuth, and multi-planar fracture complexity.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: November 13, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael J. Mayerhofer, Karn Agarwal, Norman R. Warpinski, Priyesh Ranjan, Glenn McColpin, Mikko Jaaskelainen
  • Using Downhole Strain Measurements to Determine Hydraulic Fracture System Geometry
    Publication number: 20160319661
    Abstract: The use of a distributed fiber optic strain sensor system in horizontal hydraulic fracturing wells to determine several measurements of hydraulic fracture system geometry including number of farfield fractures, hydraulic and propped fracture length, fracture azimuth, and multi-planar fracture complexity.
    Type: Application
    Filed: January 20, 2014
    Publication date: November 3, 2016
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Michael J. Mayerhofer, Karn Agarwal, Norman R. Warpinski, Priyesh Ranjan, Glenn McColpin, Mikko Jaaskelainen
  • HYDRAULIC FRACTURE GEOMETRY MONITORING WITH DOWNHOLE DISTRIBUTED STRAIN MEASUREMENTS
    Publication number: 20160282507
    Abstract: A system for use with a subterranean well can include a distributed strain sensor that senses strain along a casing which lines a treatment wellbore. The distributed strain sensor can extend across at least one fracture that intersects the wellbore. A method of monitoring at least one fracture in a subterranean well can include sensing strain in a portion of a casing where the fracture intersects the casing, the sensing being performed with a distributed strain sensor, and determining a geometry of the fracture, based on the sensing. The geometry can include a width of the fracture, a height of the fracture and an orientation of the fracture relative to a wellbore. The distributed strain sensor can include an optical waveguide.
    Type: Application
    Filed: July 8, 2014
    Publication date: September 29, 2016
    Inventors: Michael J. Mayerhofer, Norman R. Warpinski, Karn Agarwal