Patents by Inventor Alexander F. Zazovsky

Alexander F. Zazovsky 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).

  • Perforating gun
    Patent number: 7409992
    Abstract: The present invention provides an apparatus for use in perforating a well having a plurality of explosive charges. Each explosive charge is adapted to generate a perforation tunnel in the formation adjacent to the well. In one embodiment, explosive charges are oriented to create perforation tunnels that converge at a location within the formation in order to create a fracture initiation plane capable of mitigating or avoiding hydraulic fracturing complications.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: August 12, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Alexander F. Zazovsky, Vadim Akhmadikin, Wenbo Yang, Brenden M. Grove
  • Formation Fluid Sampling Apparatus and Methods
    Publication number: 20080156487
    Abstract: A fluid sampling system retrieves a formation fluid sample from a formation surrounding a wellbore extending along a wellbore axis, wherein the formation has a virgin fluid and a contaminated fluid therein. The system includes a sample inlet, a first guard inlet positioned adjacent to the sample inlet and spaced from the sample inlet in a first direction along the wellbore axis, and a second guard inlet positioned adjacent to the sample inlet and spaced from the sample inlet in a second, opposite direction along the wellbore axis.
    Type: Application
    Filed: December 27, 2006
    Publication date: July 3, 2008
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Alexander F. Zazovsky, Colin Longfield, Julian J. Pop, Thomas H. Zimmerman, John D. Sherwood, Keith A. Burgess
  • Developing a flow control system for a well
    Publication number: 20080149203
    Abstract: To develop a flow control system for use in a well, a multi-level approach is used, where the multi-level approach includes setting goals for the flow control system. According to the goals set, an overall design of the flow control system is specified, and based on the specified overall design for the flow control system, operation of the flow control system is simulated.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 26, 2008
    Inventors: Colin Atkinson, Franck B.G. Monmont, Alexander F. Zazovsky, Mark H. Fraker, Qing Yao
  • DRILLSTRING PACKER ASSEMBLY
    Publication number: 20080053652
    Abstract: A packer assembly for use in wellbore operations includes a first packer and a second packer interconnected by an adjustable length spacer. The spacer provides a mechanism for adjusting the distance between the first packer and the second packer when the assembly is positioned in a wellbore.
    Type: Application
    Filed: May 29, 2007
    Publication date: March 6, 2008
    Inventors: Pierre-Yves Corre, Vladimir Vaynshteyn, Philippe Hocquet, Nick Ellson, Alexander F. Zazovsky
  • Flow control using a tortuous path
    Publication number: 20070272408
    Abstract: Generally, an apparatus for use in a wellbore includes a flow conduit and a structure defining a tortuous fluid path proximate the flow conduit, where the tortuous fluid path receives a flow of fluid. The tortuous fluid path is defined by at least first and second members of the structure, and the first and second members are movable with respect to each other to adjust a cross-sectional flow area of the tortuous fluid path.
    Type: Application
    Filed: December 21, 2006
    Publication date: November 29, 2007
    Inventors: Alexander F. Zazovsky, Mark H. Fraker, Qing Yao, Adinathan Venkitaraman