Well pipe perforating gun

Details Well pipe perforating gun Well pipe perforating gun

E - Fixed Constructions

21

B

E21B 43/116 (2006.01)

Patent

CA 2209686

A well pipe perforating gun (10) is improved by the utilization of a pulverable support structure (14) to hold the explosive shaped charges (18a, 18b, etc.) and the fireset (20). When the gun (10) is fired, the support structure (14) disintegrates substantially into fragments too small to obstruct the flow of oil or natural gas from a surrounding earth formation into or through the well pipe (12) within which the gun is disposed. Optionally, the support structure (14) is assembled from a number of segments (14a, 14b, etc.) linked together in sequential fashion.

Canon (10) de perforation pour tubage de puits qui est amélioré par l'utilisation d'une structure de support (14) pulvérisable destinée à porter les charges creuses explosives (18a, 18b, etc.) et le mécanisme de mise à feu (20). Lorsque le canon (10) est mis à feu, la structure de support (14) se désintègre en fragments trop petits pour obstruer le flux de pétrole ou de gaz naturel provenant d'une formation géologique environnante et l'empêcher de pénétrer à l'intérieur du tubage dans lequel le canon est placé, ou à travers ledit tubage. Eventuellement, la structure de support (14) est assemblée à partir d'un certain nombre de segments (14a, 14b, etc.) reliés les uns aux autres de manière séquentielle.

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