Patents by Inventor Peter Clive Winch

Peter Clive Winch 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: 5690171
    Abstract: A method and device for stimulating and completing a drilled wellbore in a productive formation. The device comprises a pipe having a plurality of weakened portions and containing a propellant material. When the propellant is ignited it produces rapidly expanding gaseous combustion products which puncture the weakened portions of the pipe. The expanding gas fractures the surrounding formation thereby stimulating the formation to production. The pipe remains in the wellbore and is used for collecting oil and gas from the formation.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: November 25, 1997
    Inventors: Peter Clive Winch, Ian Gray