Seal Joint Without Connector OM-SJT-1

Seal Joint is used in combination with the retrievable Pack off Bushing (RPOB). This combination is used to provide a seal between the liner and setting tool during cementing operations. The Seal Joint stinger is stabbed into the bushing inner V-Ring Seal Pack-Off Assembly and the bushing OD is sealed and located in the RPOB profile within the setting sleeve or Liner Top Packer to provide a high integrity seal. This method significantly reduces the upward hydraulic force on the drill pipe during cementing when compared to the casing packer cup method to provide this seal. This is especially beneficial when cementing larger diameter liners, and /or cementing at relatively shallow depths where this upward force might exceed the drill pipe string weight and pump the running string up the hole, possibly losing the seal between the liner and setting tool. After the cement job, The Seal Joint and RPOB are pulled out of the liner top with no drill out required.