Generated by the worldenergydata field-development playbook (epic #567). Recommendation is heuristic (Concept Select / FEL-1 fidelity), not a sanctioned design.
Aconcagua is a four-well deepwater dry-gas field in Mississippi Canyon 305 developed as a subsea tieback within the Canyon Express system, commingled with the King's Peak and Camden Hills fields through jointly owned twin 12-in flowlines running ~56 miles (~90 km) to the shallow-water Canyon Station host platform. With dry gas, a long step-out and no need for separation at the wells, an all-subsea wet-tree tieback to a shared host was far cheaper than a dedicated floater, and the commingled twin-flowline/SMDL design managed hydrate and liquid-loading flow assurance over the record offset. The concept is the field's subsea tieback, not the Canyon Station platform's type. Operatorship moved from TotalFinaElf to ATP, which estimated ~90 Bcfe recoverable for its Aconcagua/Canyon Express acquisition before its 2012 bankruptcy; SCSSV control-hydraulics issues were documented in late life. Notable: Part of Canyon Express, the world's longest and deepest subsea gas tieback at its ~2002 startup (~56 mi, ~7,200+ ft).
| Concept | Score | Trees | Rationale / flags |
|---|---|---|---|
| subsea_tieback ★ | 0.807 | wet | — tieback not clearly attractive (distance/capacity/size) |
| semisub_fps | 0.746 | wet | — |
| subsea_to_shore | 0.734 | wet | — |
| spar | 0.724 | dry | — |
| fpso | 0.688 | wet | — hurricane regime: FPSO needs a disconnectable turret |
★ = the concept actually selected for this field (where known).
Sources: SubseaIQ field catalog (~2014) + BSEE + curated vessel/ subsea catalogs. Schematics are deterministic, generated from the field concept.