An on-off tool stinger with wireline plug installed can be attached to the top of this packer, which can then be lubricated in the hole and set under pressure. Once set, casing pressure can be bled off and the tubing with an on-off tool overshot can be run and latched onto the packer. The wireline plug can then be removed.
VSI-X converts to a mechanically set ASI-X by removing the shear screws and installing drag blocks. The packer sets and releases with quarter right-hand rotation. It can be left in tension, compression, or neutral.
Among production packer features: wireline or tubing set; sequentially released upper slip system, bypass valve opens before upper slips are released, and availability in shear release.