Extent of detonation determination method using seismic energy

Details Extent of detonation determination method using seismic energy Extent of detonation determination method using seismic energy

2005-09-13

2005-09-13

Walker, Zakiya (Department: 3672)

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

C166S055200, C166S250010, C166S250110

Reexamination Certificate

active

06942034

ABSTRACT:
A method of determining the extent of detonation of a Well Perforating Gun is disclosed. The Perforating Gun is positioned in a borehole and the detonation is initiated at one point on the essentially curvilinear array of explosive charges. Seismic waves emanate from the series of explosions, propagate away from the Perforating Gun and are detected at a distance away from the Perforating Gun using seismic receivers consisting of single or arrayed transducers of conventional design. The seismic receivers may be placed at or near the earth's surface and/or in one or more boreholes. The recorded seismic waves are processed and analyzed, and may be decomposed through a novel inversion process. The combined results are further analyzed to determine the extent of detonation including whether the gun fired or not, and if there was a misfire or partial misfire, the quantitative extent of the detonation.

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