Patent ID: 7650946
Filing Date: 2010-01-26
Classification: E21B

Abstract:
1. A disconnect apparatus for use in a well bore comprising: a top sub having a portion thereof comprising a collet member, said collet member extending to an engagement end, said top sub having an external seal surface; a bottom sub having an internal bore, said external seal surface and said internal bore cooperating; a support piston disposed within the collet member, said support piston having formed on an outer portion a plurality of fins, each of said fins projecting radially outward from said outer portion; shear means, operatively attached to said lop sub and said support piston, for attaching and detaching said top sub from said support piston; wherein said collet member comprises a plurality of fingers having a gap between each of said fingers and wherein each of said fins of said piston is configured to fit within one of said gaps of said collet member.