Patents by Inventor Nathan Coffey

Nathan Coffey 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).

  • Publication number: 20180038209
    Abstract: A firing assembly for a wellbore perforating gun or other downhole tool includes: one or more casings connected together to form a firing head containment body, the firing head containment body is in fluid communication with a firing assembly that includes a click pressure firing module that allows the wellbore to be pressurized to high pressures required for pressure testing the well casing one or more times without firing the gun or actuating a certain downhole tool, and after a predetermined number of pressure increase events, allows the subsequent high pressure activation to reach the firing pin or actuation device and fire the gun or activate the tool without further activity from the surface other than applying the pressure.
    Type: Application
    Filed: August 7, 2017
    Publication date: February 8, 2018
    Inventors: Nathan Coffey, Terry Mytopher
  • Patent number: 8393392
    Abstract: A bottom hole assembly for one trip perforating and treating a wellbore, the bottom hole assembly including: a tool body including an outer surface and an upper end; a fluid passage extending into the tool body from the upper end; a valve to provide (i) in one orientation fluid access from the fluid passage to an outlet port opening to the outer surface and (ii) in another orientation fluid access from the fluid passage to a perforating gun actuation fluid supply channel while sealing fluid access from the fluid passage to the outer surface; an annular sealing member encircling the outer surface below the outlet port; and a perforating gun carried below the resettable, annular sealing member and hydraulically actuable to detonate by fluid communication through the perforating gun actuation fluid supply channel.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: March 12, 2013
    Assignee: Integrated Production Services Ltd.
    Inventors: Terry Lee Mytopher, Nathan Coffey
  • Publication number: 20100236781
    Abstract: A bottom hole assembly for one trip perforating and treating a wellbore, the bottom hole assembly including: a tool body including an outer surface and an upper end; a fluid passage extending into the tool body from the upper end; a valve to provide (i) in one orientation fluid access from the fluid passage to an outlet port opening to the outer surface and (ii) in another orientation fluid access from the fluid passage to a perforating gun actuation fluid supply channel while sealing fluid access from the fluid passage to the outer surface; an annular sealing member encircling the outer surface below the outlet port; and a perforating gun carried below the resettable, annular sealing member and hydraulically actuable to detonate by fluid communication through the perforating gun actuation fluid supply channel.
    Type: Application
    Filed: March 22, 2010
    Publication date: September 23, 2010
    Applicant: INTEGRATED PRODUCTION SERVICES LTD.
    Inventors: TERRY LEE MYTOPHER, NATHAN COFFEY