Patents by Inventor Avinash Hariprasad Cuddapah

Avinash Hariprasad Cuddapah 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).

  • Drilling tool with non-synchronous oscillators and method of using same
    Patent number: 11208846
    Abstract: Apparatus and method for drilling a wellbore using non-synchronous oscillators. An apparatus for drilling a wellbore includes a tubing string and a bottom hole assembly coupled to the tubing string. The bottom hole assembly includes a first oscillator and a second oscillator. The first oscillator is configured to restrict fluid flow and induce pressure pulses in the tubing string at a first frequency. The second oscillator is configured to restrict fluid flow and induce pressure pulses in the tubing string at a second frequency. The first frequency is different from the second frequency.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: December 28, 2021
    Assignee: National Oilwell DHT, L.P.
    Inventors: Mike Rossing, Avinash Hariprasad Cuddapah
  • DRILLING TOOL WITH NON-SYNCHRONOUS OSCILLATORS AND METHOD OF USING SAME
    Publication number: 20190292856
    Abstract: Apparatus and method for drilling a wellbore using non-synchronous oscillators. An apparatus for drilling a wellbore includes a tubing string and a bottom hole assembly coupled to the tubing string. The bottom hole assembly includes a first oscillator and a second oscillator. The first oscillator is configured to restrict fluid flow and induce pressure pulses in the tubing string at a first frequency. The second oscillator is configured to restrict fluid flow and induce pressure pulses in the tubing string at a second frequency. The first frequency is different from the second frequency.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Applicant: NATIONAL OILWELL DHT, L.P.
    Inventors: Mike Rossing, Avinash Hariprasad Cuddapah
  • Drilling tool with non-synchronous oscillators and method of using same
    Patent number: 10358872
    Abstract: Apparatus and method for drilling a wellbore using non-synchronous oscillators. An apparatus for drilling a wellbore includes a tubing string and a bottom hole assembly coupled to the tubing string. The bottom hole assembly includes a first oscillator and a second oscillator. The first oscillator is configured to restrict fluid flow and induce pressure pulses in the tubing string at a first frequency. The second oscillator is configured to restrict fluid flow and induce pressure pulses in the tubing string at a second frequency. The first frequency is different from the second frequency.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: July 23, 2019
    Assignee: National Oilwell DHT, L.P.
    Inventors: Mike Rossing, Avinash Hariprasad Cuddapah
  • DRILLING TOOL WITH NON-SYNCHRONOUS OSCILLATORS AND METHOD OF USING SAME
    Publication number: 20190010762
    Abstract: Apparatus and method for drilling a wellbore using non-synchronous oscillators. An apparatus for drilling a wellbore includes a tubing string and a bottom hole assembly coupled to the tubing string. The bottom hole assembly includes a first oscillator and a second oscillator. The first oscillator is configured to restrict fluid flow and induce pressure pulses in the tubing string at a first frequency. The second oscillator is configured to restrict fluid flow and induce pressure pulses in the tubing string at a second frequency. The first frequency is different from the second frequency.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 10, 2019
    Applicant: NATIONAL OILWELL DHT, L.P.
    Inventors: Mike Rossing, Avinash Hariprasad Cuddapah
  • SAFETY JOINT FOR A TOOL STRING
    Publication number: 20150252627
    Abstract: A safety joint includes two tubular joint bodies. A plurality of circumferentially spaced first holes is formed in one tubular joint body and at least a second hole is formed in the other tubular joint body. The tubular joint bodies each have threaded sections. The threaded sections and holes are configured such that the at least one second hole is aligned with one of the first holes when a threaded connection is formed between the threaded sections. A shear pin is inserted into the aligned holes. Instead of providing the circumferentially spaced first holes in one of the tubular joint bodies, the circumferentially spaced first holes may be provided in a torque ring that is coupled to one of the tubular joint bodies by a threaded connection. The hole alignment could then be between the tubular joint body having the second hole and the torque ring.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 10, 2015
    Applicant: National Oilwell Varco, L.P.
    Inventors: Jonathan Ryan PRILL, Avinash Hariprasad Cuddapah