Patents by Inventor Jerlib J. LEAL

Jerlib J. LEAL 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).

  • Annular isolation device for managed pressure drilling
    Patent number: 10012044
    Abstract: An annular isolation device for managed pressure drilling includes a first housing portion coupled to a second housing portion; a packing element at least partially disposed in the first housing portion; a penetrator coupled to the first housing portion; and a carrier coupled to the second housing portion, wherein the carrier is configured to receive a portion of the penetrator.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: July 3, 2018
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: John Vinh Leba, Mario M. Reyna, Gordon Thomson, Chau Nguyen, Jerlib J. Leal, Walter Scott Dillard
  • Continuous flow system for drilling oil and gas wells
    Patent number: 10006262
    Abstract: A flow sub for use with a drill string includes a tubular housing having a longitudinal bore therethrough and a flow port through a wall thereof and a ball. The ball is disposed in the housing above the flow port, has a bore therethrough, and is rotatable relative to the housing between an open position where the ball bore is aligned with the housing bore and a closed position where a wall of the ball blocks the housing bore. The flow sub further includes a seat disposed in the housing above the ball for sealing against the ball wall in the closed position and a sleeve disposed in the housing and movable between an open position where the flow port is exposed to the housing bore and a closed position where a wall of the sleeve is disposed between the flow port and the housing bore.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: June 26, 2018
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Ram K. Bansal, Geoff George, Gerald Wes Don Buchanan, Justin Cunningham, Eisenhower De Leon, Joe Noske, Lev Ring, Jerlib J. Leal
  • ANNULAR ISOLATION DEVICE FOR MANAGED PRESSURE DRILLING
    Publication number: 20160138352
    Abstract: An annular isolation device for managed pressure drilling includes a first housing portion coupled to a second housing portion; a packing element at least partially disposed in the first housing portion; a penetrator coupled to the first housing portion; and a carrier coupled to the second housing portion, wherein the carrier is configured to receive a portion of the penetrator.
    Type: Application
    Filed: November 17, 2015
    Publication date: May 19, 2016
    Inventors: John Vinh LEBA, Mario M. REYNA, Gordon THOMSON, Chau NGUYEN, Jerlib J. LEAL, Walter Scott DILLARD
  • CONTINUOUS FLOW SYSTEM FOR DRILLING OIL AND GAS WELLS
    Publication number: 20150240582
    Abstract: A flow sub for use with a drill string includes a tubular housing having a longitudinal bore therethrough and a flow port through a wall thereof and a ball. The ball is disposed in the housing above the flow port, has a bore therethrough, and is rotatable relative to the housing between an open position where the ball bore is aligned with the housing bore and a closed position where a wall of the ball blocks the housing bore. The flow sub further includes a seat disposed in the housing above the ball for sealing against the ball wall in the closed position and a sleeve disposed in the housing and movable between an open position where the flow port is exposed to the housing bore and a closed position where a wall of the sleeve is disposed between the flow port and the housing bore.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 27, 2015
    Inventors: Ram K. BANSAL, Geoff GEORGE, Gerald Wes Don BUCHANAN, Justin CUNNINGHAM, Eisenhower DE LEON, Joe NOSKE, Lev RING, Jerlib J. LEAL