1
Klaus B Huber, Nolan C Lerche, Arnold G Edwards, Kenneth E Rozek, Edward G Smith Jr: Method and apparatus for safe transport handling arming and firing of perforating guns using a bubble activated detonator. Schlumberger Technology Corporation, Henry N Garrana, John H Bouchard, February 18, 1992: US05088413 (48 worldwide citation)

An exploding foil bubble activated detonator, adapted for use in a perforating gun, includes an exploding foil, the exploding foil including as neck section which vaporizes when a current of sufficient magnitude and duration flows therethrough, a layer of polyimide material deposited over said foil, ...


2
A Glen Edwards, Joe C Hromas, Klaus B Huber, Edward G Smith Jr: Shock absorber for use in a wellbore including a frangible breakup element preventing shock absorption before shattering allowing shock absorption after shattering. Schlumberger Technology Corporation, Henry N Garrana, John H Bouchard, November 22, 1994: US05366013 (38 worldwide citation)

A shock absorber, adapted to be disposed above a perforating gun in a tool string and adapted to be disposed in a wellbore, includes a crushable element disposed between an inner and outer housing, a frangible breakup element, and a detonating cord disposed within the frangible breakup element and c ...


3
Klaus B Huber, A Glen Edwards, Thomas M Sayers, Edward G Smith Jr: Firing head connected between a coiled tubing and a perforating gun adapted to move freely within a tubing string and actuated by fluid pressure in the coiled tubing. Schlumberger Technology Corporation, Henry N Garrana, John H Bouchard, April 9, 1996: US05505261 (35 worldwide citation)

A firing head adapted to connected between a coiled tubing and a perforating gun, is sized and shaped to enable it to move freely within a tubing string in the wellbore, may be actuated by fluid pressure within the coiled tubing, and includes a circulation and recirculation feature wherein wellbore ...


4
Klaus B Huber, A Glen Edwards, Edward G Smith Jr, Laurent E Muller: Well completion apparatus for use under pressure and method of using same. Schlumberger Technology Corporation, Gordon G Waggett, John J Ryberg, December 15, 1998: US05848646 (26 worldwide citation)

A completions insertion and retrieval under pressure (CIRP) apparatus utilizes a snaplock connector to assemble uphole a tool string of any desired length prior to lowering the tool string into a wellbore for performing wellbore operations in the wellbore. The tool string could comprise a perforatin ...


5
Klaus B Huber, A Glen Edwards, Edward G Smith Jr, Laurent E Muller: Completions insertion and retrieval under pressure (CIRP) apparatus including the snaplock connector. Schlumberger Technology Corporation, Gordon G Waggett, John J Ryberg, John Bouchard, May 9, 2000: US06059042 (23 worldwide citation)

A completions insertion and retrieval under pressure (CIRP) apparatus utilizes a snaplock connector to assemble uphole a tool string of any desired length prior to lowering the tool string into a wellbore for performing wellbore operations in the wellbore. The tool string could comprise a perforatin ...


6
Klaus B Huber, A Glen Edwards, Edward G Smith Jr: Hydraulic safety pin and method of operating a pressure-controlled device. Schlumberger Technology Corporation, Henry N Garrana, John H Bouchard, January 11, 1994: US05277262 (9 worldwide citation)

A hydraulic safety pin is interconnected between a device, such as a pressure controlled firing head associated with a perforating gun, and a small diameter tubing in a wellbore. When, the small diameter tubing is filled with fluid under pressure, the hydraulic safety pin allows the fluid to fill th ...