Patents by Inventor Jitendra M. Avasthi

Jitendra M. Avasthi 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).

  • Method to create parallel vertical fractures in inclined wellbores
    Patent number: 4977961
    Abstract: A technique is disclosed for creating parallel vertical fractures from a horizontal or inclined wellbore. Magnitude and orientation of in situ stresses within the formation are determined, and a wellbore is drilled in the direction of the minimum horizontal in situ stress. The wellbore casing is then perforated in the vertical plane by selectively placing a pair of opposing perforations within the casing. Vertical fractures are then initiated and propagated in the plane perpendicular to the minimum horizontal in situ stress by applying hydraulic pressure to fluid in the wellbore casing.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: December 18, 1990
    Assignee: Chevron Research Company
    Inventor: Jitendra M. Avasthi