Patent ID: 7337840
Filing Date: 2008-03-04
Classification: E21B

Abstract:
1. A well completion apparatus, comprising: an outer assembly comprising a first cementing port and a gravel packing port positioned below the first cementing port, a first inner sealing surface positioned above the first cementing port, a second inner sealing surface positioned below the first cementing port, a third inner sealing surface positioned above the gravel packing port, and a fourth inner sealing surface positioned below the gravel packing port; and an inner assembly carried within the outer assembly comprising, a port and a seal body having a first portion extending above the port and a second portion extending below the port, the inner assembly axially movable relative to the outer assembly to positions at which (i) the seal body first portion forms a fluid seal with the third inner sealing surface and the seal body second portion forms a fluid seal with the fourth inner sealing surface, (ii) the seal body second portion forms a fluid seal with the third inner sealing surface, (iii) the seal body first portion forms a fluid seal with the first inner sealing surface and the seal body second portion forms a fluid seal with the second inner sealing surface, or (iv) the seal body second portion forms a fluid seal with the first inner sealing surface.