E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/12
E21B 43/116 (2006.01) E21B 43/117 (2006.01) E21B 43/1185 (2006.01) E21B 43/119 (2006.01)
Patent
CA 1094944
HIGH DENSITY JET PERFORATING CASING GUN ABSTRACT OF THE INVENTION A high density perforating gun having series con- nected multiple gun housings within which a plurality of jet perforating shaped charges are arranged in spaced apart clusters. The charges of each cluster are captured in radially spaced apart symmetrical relationship within a mounting assem- bly, and each housing includes a plurality of the mounting assemblies which are spaced vertically apart from one another. The charges contained within each mounting assembly are ori- ented respective to the charges of the remaining mounting assemblies so that any charge located in one mounting assembly is spaced apart both radially and vertically from the nearest adjacent charge of an adjacent mounting assembly. This arrange- ment permits a maximum number of shaped charges to be placed within a finite volume. All of the charges contained within one housing are simultaneously detonated. The explosive force resulting from a plurality of shaped charges arranged in the above high density manner brings about the unexpected benefit of a more desirable and predetermined perforating pattern dis- tribution as well as achieving deeper penetration into the pay zone while at the same time avoiding misfire of the individual shaped charges. - 1 -
313048
Borden Ladner Gervais Llp
Vann Roy R.
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