Shell Oil Comapny

Edward Paul Cernocky

Allen J. Lindfors

Allen Lindfors

Aron Robert Ekelund

Eugene Murphy

Matthew Robert George Bell

Christopher Burres

Robert Lance Cook

Frank J Schuh

Allen J Lindfors

An apparatus for perforating a casing string including a first module and a second module, each including a gun assembly. The first module is positioned longitudinally adjacent the second module on the casing string. Each module contains a firing assembly for igniting the gun assembly in the first module, a remote signaler to remotely detonate the firing assembly, and ballistic transfer assembly for igniting the gun assembly in the second module. The ballistic transfer assembly includes a booster charge.

Perforating apparatus, firing assembly, and method

A firing assembly for activating a perforating device comprising a module having a first chamber and a second chamber. The firing assembly comprises a firing head for transferring ballistic energy to the perforating device, said firing head having a detonator and a plurality of ballistic charges, said detonator coupled to at least one of said first gun assembly and said second gun assembly a remote telemetry device for sending a detonation signal, a transmission medium for transmitting said detonation signal to said firing head, and a receiving device for receiving said detonation signal and a processor for interpreting said detonation signal and activating said detonator.

Disclosed is a device and method for externally perforating a well-bore casing. The perforating apparatus is attached to the outside of the casing itself and is conveyed along with the casing when it is inserted into the well bore. The perforation is accomplished using two groups of charges which are contained in protective pressure chambers which are arranged radially around the outside of the wellbore casing. The pressure chambers form longitudinally extending ribs which conveniently serve to center the casing within the well bore. One group of charges is aimed inward in order to perforate the casing. A second group is aimed outward in order to perforate the formation. In an alternative embodiment, only one group of bi-directional charges is provided.

Casing conveyed well perforating apparatus and method

Disclosed is a casing conveyed perforating apparatus and method for externally perforating a wellbore casing. The perforating apparatus is attached to the outside of the casing and is conveyed along with the casing when it is inserted into the wellbore. The perforation is accomplished using two groups of charges, which are contained in protective pressure chambers. Each pressure chamber is positioned radially around the outside of the wellbore casing. The pressure chambers form longitudinally extending ribs, which conveniently serve to center the casing within the wellbore. One group of charges is aimed inward in order to perforate the casing. A second group is aimed outward in order to perforate the formation. In an alternative embodiment, only one group of bi-directional charges is provided.

A method and apparatus for perforating tubular members coaxial outside and inside surfaces with a continuous wall extending therebetween attaches at least one explosive charge in direct contact with the wall of the tubular with at least one detonation device in communication with the explosive device. A control station in wireless and cableless communication with the at least one detonation device selects from radio waves, infrared waves, acoustic waves, optical light waves, seismic waves, and combinations thereof to activate the at least one detonation device.

Method and apparatus for perforating a well

There is a provided an apparatus and process for multi-zone profile control in a well including a wellbore intersecting at least one production zone, at least one injection tube, at least one insulation means, and at least one zone isolation means. Control media is injected through the injection tube, exiting at at least one control media exit of the injection tube and entering the production zone. The insulation means allow multiple zones to be injected simultaneously with control media of different temperatures and pressures.

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Mandeviille, LA, United States of America

Edward Paul Cernocky