Patent ID: 7044236
Filing Date: 2006-05-16
Classification: E21B

Abstract:
1. An apparatus to determine wellbore perforation orientation comprising: an elongated housing formed for axial insertion into said wellbore; one or more shaped charges disposed within said housing; an indicator mechanism created from a deformable material secured within said elongated housing, said indicator mechanism formed to comprise an annulus formed within, said annulus having an inner surface and an outer surface forming opposing sides and having an axis parallel to the elongated housing axis; and an indicator element disposed and freely moveable within said annulus, such that upon rotation of said elongated housing said indicator element responds to gravitational forces and moves along the annulus to a location closest to the source of the gravitational forces, and upon sufficient convergence of said opposing sides, said indicator element is squeezed between said opposing sides and is locked into a stationary position.