Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Patent
1983-06-06
1985-09-17
Leppink, James A.
Wells
Processes
Perforating, weakening, bending or separating pipe at an...
166278, 166 551, 166 51, 175 452, 175 46, E21B 4304, E21B 43117
Patent
active
045414866
ABSTRACT:
A method and apparatus effecting the perforating of a well casing and the gravel packing of the perforated areas of the well casing with one trip into the well of a combined perforating and gravel packing apparatus. This desirable objective is accomplished by a perforating gun construction permitting complete flexibility to adjust in the field the number of horizontally and vertically 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: 2750885 (1956-06-01), Schumberger
patent: 2760408 (1956-08-01), Taylor
patent: 2873676 (1959-02-01), Caldwell
patent: 3013491 (1961-12-01), Poulter
patent: 3565188 (1971-02-01), Hakala
patent: 3589453 (1971-06-01), Venghiattis
patent: 3773119 (1973-11-01), Shore
patent: 4049055 (1977-09-01), Brown
patent: 4140188 (1979-02-01), Vann
patent: 4372384 (1983-02-01), Kinney
patent: 4378842 (1983-04-01), Patel
patent: 4401158 (1983-08-01), Spencer et al.
Stout Gregg W.
Wetzel Rodney J.
Baker Oil Tools, Inc.
Dang Hoang C.
Leppink James A.
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