Patents by Inventor John D. Rowatt

John D. Rowatt 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).

  • Patent number: 8910718
    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.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: December 16, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Arthur I. Watson, Steven Dornak, Michael W. Miller, Parveen Sayela, Cody Casey, Gregory H. Manke, Mark McCorry, John D. Rowatt, Mark E. Allen, Diego A. Narvaez
  • Patent number: 8485798
    Abstract: Pump apparatus, systems and methods of making and using same are disclosed. One inventive system includes a coupling member, a first shaft and a second shaft, the coupling member connecting the first shaft with the second shaft, the coupling member defining a first axial chamber accepting the first shaft, and a second axial chamber accepting the second shaft, the chambers separated by a coupling plate, the chambers including torsional motion transmitting elements and axial motion securing elements in the first and second axial chambers for axially securing the shafts in the coupling member. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: July 16, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Ketankumar K. Sheth, Thurkral Mandeep, John D. Rowatt, Steven L. Anyan, Michael W. Miller
  • Publication number: 20100272504
    Abstract: Pump apparatus, systems and methods of making and using same are disclosed. One inventive system includes a coupling member, a first shaft and a second shaft, the coupling member connecting the first shaft with the second shaft, the coupling member defining a first axial chamber accepting the first shaft, and a second axial chamber accepting the second shaft, the chambers separated by a coupling plate, the chambers including torsional motion transmitting elements and axial motion securing elements in the first and second axial chambers for axially securing the shafts in the coupling member. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: July 6, 2010
    Publication date: October 28, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ketankumar K. Sheth, Thurkral Mandeep, John D. Rowatt, Steven L. Anyan, Michael W. Miller
  • Patent number: 7775779
    Abstract: Pump apparatus, systems and methods of making and using same are disclosed. One inventive system includes a coupling member, a first shaft and a second shaft, the coupling member connecting the first shaft with the second shaft, the coupling member defining a first axial chamber accepting the first shaft, and a second axial chamber accepting the second shaft, the chambers separated by a coupling plate, the chambers including torsional motion transmitting elements and axial motion securing elements in the first and second axial chambers for axially securing the shafts in the coupling member. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: August 17, 2010
    Assignee: Sclumberger Technology Corporation
    Inventors: Ketankumar K. Sheth, Thurkral Mandeep, John D. Rowatt, Steven L. Anyan, Michael W. Miller
  • Patent number: 7741744
    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.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: June 22, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Arthur I. Watson, Michael H. Du, John D. Rowatt
  • Patent number: 7654315
    Abstract: Apparatus and pumping systems including the apparatus are described, the apparatus including a protector body comprising a material allowing expansion and contraction of an internal fluid, the body serving as a barrier between fluids external of the body and the internal fluid. The body has first and second ends, at least one end adapted to connect the body to other components, the protector body further comprising structural features permitting facile cleanout and reuse of the protector body. Methods of use of the apparatus and systems are described, particularly in oilfield exploration, testing, and production. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: February 2, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Michael H. Du, John D. Rowatt, Cheryl R. DuVall, Michael W. Miller
  • Patent number: 6419014
    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.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: July 16, 2002
    Assignee: Schlumberger Technology Corporation
    Inventors: Dale E. Meek, Lawrence J. Leising, John D. Rowatt