Patent ID: 8181698

Claim:
A multi-function rig for performing rig operations on a plurality of spaced-apart wellbore locations at a single wellbore location site, said multi-function rig configured to be movable between multiple wellbore location sites, the multi-function rig comprising: a rig structure configured to be positioned over said plurality of spaced-apart wellbore locations at said single wellbore location site; at least one tubular movement apparatus disposed proximate said rig structure; a plurality of machines operatively coupled to said rig structure and configured to perform at least one of said rig operations on at least one of said plurality of spaced-apart wellbore locations, wherein each of said plurality of machines comprises a support attachment having a same attachment configuration that is adapted to be supported by removably coupling said support attachment to a separate machine support at each of said plurality of spaced-apart wellbore locations while performing said at least one of said rig operations, wherein each of said separate machine supports comprises a same support configuration that is adapted to matingly engage said same attachment configuration of each of said support attachments of each of said plurality of machines, and wherein at least one of said plurality of machines is configured to be movable relative to said rig structure to positions proximate at least one of said plurality of spaced-apart wellbore locations without moving said multi-function rig from said single wellbore location site; at least one pressure-retaining device disposed proximate each of said plurality of spaced-apart wellbore locations, wherein said at least one pressure-retaining device comprises said separate machine support and at least one of a wellhead and pressure control equipment; and at least one of said plurality of machines being configured as a drilling machine to perform a drilling operation, and configured to be movable relative to said rig structure to positions proximate at least one of said plurality of spaced-apart wellbore locations.