The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 1997
Filed:
Jan. 04, 1995
Robert R Green, Houston, TX (US);
William D Myers, Houston, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
An apparatus for actuating a firing head is disclosed. The apparatus contains a firing head that is operatively connected to a detonating cord of a perforating gun containing a series of shaped charges. The perforating gun will be connected to a work string in a wellbore filled with a fluid. The apparatus generally comprises a housing member having an inner portion and an outer portion; a blocking member for blocking passage of a hydrostatic pressure; a mechanical activation piston, adapted to be received within the housing member, for mechanically opening the blocking member. The apparatus further contains a hydraulic activation piston, adapted to be received within the housing member, for activating a percussion initiator firing member; and a transfer charge booster that transfers the detonation to a detonation cord.