Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1982-04-07
1985-10-01
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29453, 102310, 166 51, 175 46, B21D 3900
Patent
active
045437033
ABSTRACT:
A method and apparatus effecting the perforating of a well casing and the gravel packing of the perforated areas of the well casing of a combined perforating and gravel packing apparatus. This desirable objective is accomplished by a perforating gun construction permitting complete flexiblility to adjust in the field the number of horizontally and veritcally spaced shaped charges through the provision of a polygonal carrier having vertically spaced holes provided in each of its planar sides to accommodate vertically spaced horizontal groups of shaped charges with the charges in one horizontal group being angularly displaced relative to the charges in a vertically adjacent horizontal group. Additionally, the crossover mandrel employed in the gravel packing operation provides, in its run-in position, a continuous axial passage through its entire length, permitting a detonating device to be placed therethrough to actuate the perforating gun. Subsequent to the perforating operation, a ball is dropped and seated on an annular sleeve carried within the hollow mandrel which permits the development of internal pressure within the mandrel. Such internal pressure is employed not only to effect the setting of a fluid pressure actuated packer but also to shift the ball supporting sleeve downwardly and uncover a crossover port in the mandrel which permits the gravel packing operation to be carried out conventionally.
REFERENCES:
patent: 2649046 (1953-08-01), Davis
patent: 2686472 (1954-08-01), Burns
patent: 2873676 (1959-02-01), Caldwell
patent: 2916991 (1959-12-01), Gilbert
patent: 3146710 (1964-09-01), Atwood
patent: 3762326 (1973-10-01), Edgell et al.
Stout Gregg W.
Wetzel Rodney J.
Baker Oil Tools, Inc.
Moon Charlie T.
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