Patents by Inventor Janet S. Denney

Janet S. Denney 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).

  • Shaped recesses in explosive carrier housings that provide for improved explosive performance
    Patent number: 6523474
    Abstract: A carrier for containing explosives (e.g., shaped charges) includes a housing having a plurality of recesses, each recess having a periphery and a side surface extending around the periphery. The side surface is shaped to a geometry to reduce or control reflection of compression waves generated in response to an explosive jet (e.g., a perforating jet) created due to detonation of an explosive. The side surface may be slanted from a bottom surface of the recess, or a predetermined profile may be formed in the side surface to scatter or direct compression waves. One or more shock absorbing inserts may also be placed in recesses formed by the inserts, or the recesses may be capped to trap air so that compression waves generated in the recesses are significantly reduced as compared to compression waves generated in well fluids.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: February 25, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Robert A. Parrott, Janet S. Denney, Jack F. Lands, Alfredo Fayard
  • Shaped recesses in explosive carrier housings that provide for improved explosive performance
    Publication number: 20020189483
    Abstract: A carrier for containing explosives (e.g., shaped charges) includes a housing having a plurality of recesses, each recess having a periphery and a side surface extending around the periphery. The side surface is shaped to a geometry to reduce or control reflection of compression waves generated in response to an explosive jet (e.g., a perforating jet) created due to detonation of an explosive. The side surface may be slanted from a bottom surface of the recess, or a predetermined profile may be formed in the side surface to scatter or direct compression waves. One or more shock absorbing inserts may also be placed in recesses formed by the inserts, or the recesses may be capped to trap air so that compression waves generated in the recesses are significantly reduced as compared to compression waves generated in well fluids.
    Type: Application
    Filed: July 18, 2002
    Publication date: December 19, 2002
    Inventors: Robert A. Parrott, Janet S. Denney, Jack F. Lands, Alfredo Fayard
  • Shaped recesses in explosive carrier housings that provide for improved explosive performance in a well
    Patent number: 6460463
    Abstract: A carrier for containing explosives (e.g., shaped charges) includes a housing having a plurality of recesses, each recess having a periphery and a side surface extending around the periphery. The side surface is shaped to a geometry to reduce or control reflection of compression waves generated in response to an explosive jet (e.g., a perforating jet) created due to detonation of an explosive. The side surface may be slanted from a bottom surface of the recess, or a predetermined profile may be formed in the side surface to scatter or direct compression waves. One or more shock absorbing inserts may also be placed in recesses formed by the inserts, or the recesses may be capped to trap air so that compression waves generated in the recesses are significantly reduced as compared to compression waves generated in well fluids.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: October 8, 2002
    Assignee: Schlumberger Technology Corporation
    Inventors: Robert A. Parrott, Janet S. Denney, Jack F. Lands, Alfredo Fayard