Boring or penetrating the earth – Boring with explosion in inaccessible hole – Concave-shaped charge
Patent
1982-12-06
1985-03-05
Suchfield, George A.
Boring or penetrating the earth
Boring with explosion in inaccessible hole
Concave-shaped charge
166297, E21B 43117
Patent
active
045025509
ABSTRACT:
A novel and improved form of through-tubing perforating assembly conformable for use in various types of cased well bores having particular application in those in which a tubing string is positioned within the cased well bore and where extremely high pressures are encountered at the bottom of the well. A plurality of shaped charges are mounted in a modular carrier comprised of a plurality of generally tubular members interconnected in end-to-end relation to one another, each tubular member having an internal cavity defining a horizontally directed seating portion for supporting one of the shaped charges therein. An end cap is disposed at the lower end of the modular carrier, and a blasting cord extends continuously through the tubular members across one end of the shaped charges for detonating the charges when positioned opposite to that part of the formation to be perforated.
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Magnum Jet, Inc.
Starinsky Michael
Suchfield George A.
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