Celestial Mechanics: Dedicated to Donald Saari for His 60th Birthday Proceedings of an International Conference on Celestial Mechanics, December 15-19, 1999 northwestern
Andrew Cooksey - Coppell TX Jim Williamson - Carrollton TX Clark Robinson - Plano TX Chris Dines - London, GB2 James Vick - Dallas TX
Assignee:
Halliburton Company - Dallas TX
International Classification:
E21B 2300
US Classification:
166115
Abstract:
A lock assembly includes radially movable engagement or latch members configured to engage a profile within a subsurface nipple, and further includes one or more sealing assemblies. The sealing assemblies are radially expandable by enlarging the interior of diameter of the elements of the sealing assembly, such as by placing a mandrel of relatively enlarged diameter through an internal diameter of elements of the sealing assembly.