Patents by Inventor ATHAR M. RAZVI

ATHAR M. RAZVI 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).

  • Expandable junk mill stabilizer
    Patent number: 10151163
    Abstract: A stabilizer system articulates at least one blade independently of an extendable blade for a through tubing mill. The stabilizer can be actuated with flow, pressure or set down weight. A piston responds to flow or pressure from the surface and an elongated member can cam out the stabilizer with set down weight on the extendable blades.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: December 11, 2018
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Cristian A. Esparza, Athar M. Razvi, David B. Haughton, Ernest D. Colin, Jr., William B. Handy, Steve Rosenblatt
  • Hydraulically released running tool for setting a whipstock anchor before cementing therethrough
    Patent number: 9995106
    Abstract: A running tool for a subterranean tool releases hydraulically. When used with a whipstock and anchor, the running tool can be dovetailed to the whipstock ramp to allow transmission of torque and downward force on the whipstock when positioning. An upward force can be transmitted to the whipstock from collet that is supported by a ball seat. The anchor is set and a passage opened through the anchor before cementing. The running tool is then released and a passage is opened for cementing. Release of the running tool results from shifting the ball seat that supports the collet. Cement can then bypass the seated ball and back through the ports in the ball seat. Removal of the running tool is assured by applying an upward force without needing rotation or other string manipulation that can be difficult in a deviated borehole.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: June 12, 2018
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Athar M. Razvi, Cristian A. Esparza
  • Expandable Junk Mill Stabilizer
    Publication number: 20180051524
    Abstract: A stabilizer system articulates at least one blade independently of an extendable blade for a through tubing mill. The stabilizer can be actuated with flow, pressure or set down weight. A piston responds to flow or pressure from the surface and an elongated member can cam out the stabilizer with set down weight on the extendable blades.
    Type: Application
    Filed: August 22, 2016
    Publication date: February 22, 2018
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Cristian A. Esparza, Athar M. Razvi, David B. Haughton, Ernest D. Colin, JR., William B. Handy, Steve Rosenblatt
  • HYDRAULICALLY RELEASED RUNNING TOOL FOR SETTING A WHIPSTOCK ANCHOR BEFORE CEMENTING THERETHROUGH
    Publication number: 20170101838
    Abstract: A running tool for a subterranean tool releases hydraulically. When used with a whipstock and anchor, the running tool can be dovetailed to the whipstock ramp to allow transmission of torque and downward force on the whipstock when positioning. An upward force can be transmitted to the whipstock from collet that is supported by a ball seat. The anchor is set and a passage opened through the anchor before cementing. The running tool is then released and a passage is opened for cementing. Release of the running tool results from shifting the ball seat that supports the collet. Cement can then bypass the seated ball and back through the ports in the ball seat. Removal of the running tool is assured by applying an upward force without needing rotation or other string manipulation that can be difficult in a deviated borehole.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 13, 2017
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: ATHAR M. RAZVI, CRISTIAN A. ESPARZA