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John D Rowatt

age ~55

from Salt Lake City, UT

Also known as:
  • John David Rowatt
  • John Living Rowatt
  • John Liv Rowatt
  • John A Rowatt
  • John S Rowatt
  • John W Rowatt
  • John David Rowatt Lt
  • John David

John Rowatt Phones & Addresses

  • Salt Lake City, UT
  • 414 Maple St, Cambria, IL 62915 • 618 985-4095
  • Cottonwood Heights, UT
  • Bryan, TX
  • 5615 Brennan Ridge Ln, Katy, TX 77450
  • Harvard, MA
  • Kilgore, TX
  • Pearland, TX
  • Richmond, TX
  • Monroe, LA
  • Longview, TX

Us Patents

  • Submersible Pumping System

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  • US Patent:
    7469748, Dec 30, 2008
  • Filed:
    Apr 13, 2006
  • Appl. No.:
    11/308623
  • Inventors:
    Murat Ocalan - Houston TX, US
    John F. Benton - Smithsburg MD, US
    Michael H. Du - Pearland TX, US
    Jeffrey Miller - Missouri City TX, US
    Peter Julstrom - Sugar Land TX, US
    John David Rowatt - Pearland TX, US
    Allan D. Ross - Houston TX, US
    Steven Dornak - Damon TX, US
    Arthur I. Watson - Sugar Land TX, US
    Brigitte Finkiewicz - Rosharon TX, US
  • Assignee:
    Schlumberger Technology Corporation - Sugar Land TX
  • International Classification:
    E21B 33/00
    E21B 43/00
  • US Classification:
    166372, 166105, 166 68, 417394, 417539
  • Abstract:
    A technique is provided for pumping fluids in a subterranean wellbore. A submersible pumping system can be deployed in a wellbore for moving desired fluids within the wellbore. The pumping system energizes the desired fluid movement by reciprocating a working fluid between expandable members.
  • System And Method For Protecting A Submersible Motor

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  • US Patent:
    7741744, Jun 22, 2010
  • Filed:
    Mar 27, 2006
  • Appl. No.:
    11/308447
  • Inventors:
    Arthur I. Watson - Sugar Land TX, US
    Michael H. Du - Pearland TX, US
    John D. Rowatt - Pearland TX, US
  • Assignee:
    Schlumberger Technology Corporation - Sugar Land TX
  • International Classification:
    H02K 5/132
    H02K 5/10
  • US Classification:
    310 87, 310 89, 166 68, 166108, 417414
  • Abstract:
    A technique is provided to facilitate pumping of fluids in a well. A submersible pumping system utilizes a submersible motor to power a submersible pump. A motor protector works in cooperation with the submersible motor to protect motor fluid within the submersible motor and to reduce differential pressures between the internal motor fluid and the external well fluid. The motor protector incorporates a piston slidably sealed within an interior cavity of the motor protector for movement to reduce undue differential pressures.
  • Providing A Cleaning Tool Having A Coiled Tubing And An Electrical Pump Assembly For Cleaning A Well

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  • US Patent:
    7874366, Jan 25, 2011
  • Filed:
    Jun 28, 2007
  • Appl. No.:
    11/770416
  • Inventors:
    Marc Allcorn - Sugar Land TX, US
    Jing Hayes Chow - Anchorage AL, US
    David Milton Eslinger - Collinsville OK, US
    Matthew R. Hackworth - Manvel TX, US
    John David Rowatt - Pearland TX, US
    Thomas Allan - Hosuton TX, US
  • Assignee:
    Schlumberger Technology Corporation - Sugar Land TX
  • International Classification:
    E21B 43/00
  • US Classification:
    166311, 166105
  • Abstract:
    To perform a cleanout operation in a wellbore, a cleaning tool having a coiled tubing and an electrical pump assembly is run into the wellbore. The electrical pump assembly that is located in the wellbore is activated. In response to fluid flow generated by the electrical pump assembly, removal of debris from the wellbore is caused by directing fluid containing the debris into the coiled tubing for delivery to an earth surface.
  • Gas Well Dewatering System

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  • US Patent:
    8177526, May 15, 2012
  • Filed:
    Feb 18, 2009
  • Appl. No.:
    12/388098
  • Inventors:
    Michael A. Dowling - Houston TX, US
    Jason Kamphaus - Missouri City TX, US
    Harryson Sukianto - Missouri City TX, US
    Alain P. Dorel - Houston TX, US
    John David Rowatt - Pearland TX, US
    Arthur I. Watson - Sugar Land TX, US
  • Assignee:
    Schlumberger Technology Corporation - Sugar Land TX
  • International Classification:
    E21B 43/00
  • US Classification:
    417393, 417404, 417505
  • Abstract:
    Power and control logic configurations for gas well dewatering systems are provided. In one example, a reservoir is configured to contain hydraulic, lubricating fluid. An electric motor is configured to receive fluid from the reservoir for lubrication and a hydraulic pump powered by the electric motor is configured to receive fluid from the reservoir and pump the fluid into a hydraulic circuit. A positive displacement oscillating pump is powered by the hydraulic pump and configured to pump fluid from the reservoir to an outlet from the well. The electric motor and hydraulic pump receive the same fluid from the reservoir for lubrication and to create pressure in the hydraulic circuit, respectively. A switching device is connected to the hydraulic circuit and is switchable between a first position wherein fluid pressure from the hydraulic pump causes the piston pump to move in a first direction and a second position wherein fluid pressure from the hydraulic pump causes the piston pump to move in a second direction.
  • Motor Driven Hybrid Rotary Steerable System

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  • US Patent:
    20030127252, Jul 10, 2003
  • Filed:
    Dec 13, 2002
  • Appl. No.:
    10/248054
  • Inventors:
    Geoff Downton - Minchinhampton, GB
    Steven Hart - Bath, GB
    John Rowatt - Richmond TX, US
  • International Classification:
    E21B007/08
  • US Classification:
    175/073000, 175/076000
  • Abstract:
    A bottom hole assembly is rotatably adapted for drilling directional boreholes into an earthen formation. It has an upper stabilizer mounted to a collar, and a rotary steerable system. The rotary steerable system has integral drilling motor, an upper section connected to the collar, a steering section, and a drill bit arranged for drilling the borehole attached to the steering section. The steering section is joined at a swivel with the upper section. The steering section is actively tilted about the swivel. A lower stabilizer is mounted upon one of the upper section or the steering section such that the swivel is intermediate the drill bit and the lower stabilizer.
  • System And Method For A Combined Submersible Motor And Protector

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  • US Patent:
    20050109515, May 26, 2005
  • Filed:
    Sep 29, 2004
  • Appl. No.:
    10/711631
  • Inventors:
    Arthur Watson - Sugar Land TX, US
    Steven Dornak - Damon TX, US
    Michael Miller - Bartlesville OK, US
    Parveen Sayela - Houston TX, US
    Cody Casey - Lawrence KS, US
    Gregory Manke - Overland Park KS, US
    Mark McCorry - Aberdeen, GB
    John Rowatt - Richmond TX, US
    Mark Allen - Bartlesville OK, US
    Diego Narvaez - Missouri City TX, US
  • Assignee:
    SCHLUMBERGER TECHNOLOGY CORPORATION - Sugar Land TX
  • International Classification:
    E21B043/00
  • US Classification:
    166369000, 166378000, 166065100, 166105000
  • Abstract:
    A system and method is provided for producing a hydrocarbon fluid from a subterranean environment. The system and method utilize an electric submersible pumping system having a motive unit comprising a combined submersible motor section and protector section.
  • Electric Submersible Pumping Sensor Device And Method

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  • US Patent:
    20090277628, Nov 12, 2009
  • Filed:
    May 7, 2008
  • Appl. No.:
    12/116302
  • Inventors:
    Arthur I. Watson - Sugar Land TX, US
    John A. Booker - Missouri City TX, US
    Kenneth Armstrong - Danestone, GB
    John David Rowatt - Pearland TX, US
  • Assignee:
    SCHLUMBERGER TECHNOLOGY CORPORATION - Sugar Land TX
  • International Classification:
    E21B 47/00
  • US Classification:
    16625001, 166105
  • Abstract:
    An electric submersible pump device having a pump; a motor, the motor being adjacent to the pump and having motor windings extending a first distance along the motor; a support member, the support member supporting the sensor and having a length so that the sensor is located the first distance downhole from a downhole distal end of the motor windings; the sensor device comprising at least one selected from the following: a temperature sensor, a flow-meter, a vibration sensor or a pressure sensor.
  • Apparatus And Method For Orienting A Downhole Tool

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  • US Patent:
    6419014, Jul 16, 2002
  • Filed:
    Jul 20, 2000
  • Appl. No.:
    09/621277
  • Inventors:
    Dale E. Meek - Sugar Land TX
    Lawrence J. Leising - Sugar Land TX
    John D. Rowatt - Richmond TX
  • Assignee:
    Schlumberger Technology Corporation - Houston TX
  • International Classification:
    E21B 47024
  • US Classification:
    1662552, 175 45
  • Abstract:
    An orienter, particularly on coiled tubing or small diameter drill pipe, includes a motor, turbine, or other device for selectively converting the rotational kinetic energy produced from fluid flow through the device to mechanical power, and applying the mechanical power to a downhole tool through a gear train for orienting the downhole tool. The orienter is utilized during directional drilling and other operations such as well intervention, fishing, and multilateral re-entry operations. The downhole tool preferably includes a steerable mud motor. In one embodiment, the direction of the borehole is controlled by azimuthal rotation of the orienter of the present invention in response to downlink commands from the surface by changing fluid flow rate through the orienter in a predefined series of steps.

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