Patent ID: 8561995
Filing Date: 2013-10-22
Classification: E21B,F16L

Abstract:
1. An apparatus for sealing between two tubular members, the apparatus comprising: a first and second inner annular sealing ring, each inner annular sealing ring having an inner sealing surface; a first and second outer sealing ring, the outer sealing rings being located opposite the inner sealing rings, each outer annular sealing ring having an outer sealing surface; an energizing ring having a first forcing cone and a second forcing cone, each forcing cone being an annular ring having an inner and an outer sloped surface, the inner and outer sloped surfaces diverging from each other from a tip of each forcing cone to a wide point of each forcing cone, the forcing cones protruding in opposite directions from a body of the energizing ring, the first forcing cone located radially between the first inner and outer sealing rings and the second forcing cone located radially between the second inner and outer sealing rings; an axially moveable ring having end surfaces for transferring axial force to the first inner and first outer sealing rings; a stationary ring having surfaces for transferring axial force to the second inner and second outer sealing rings; and wherein moving the axially moveable ring from a first axial position to a second axial position causes