Field Development Plan — Devils Tower

Generated by the worldenergydata field-development playbook (epic #567). Recommendation is heuristic (Concept Select / FEL-1 fidelity), not a sanctioned design.

Engineering rationale

The engine's top recommendation (Semisub Fps) differs from the concept actually built (Spar). The recommendation is produced on a blind probe (the as-built concept stripped before scoring); the shortlist below shows where the built concept ranks. Divergence is expected where the real choice turned on data outside the engine's inputs (reserves, schedule, operator preference).

Field parameters

Water depth
1710.0 m
Concept
spar
Fluid
oil
Operator
ENI (NOC)
Wells
8
Plateau
Tieback
First oil

Recommended concept shortlist

ConceptScoreTreesRationale / flags
semisub_fps0.793wettypical of gom development practice; large reserves (80 MMboe) justify a dedicated host
spar ★0.777drytypical of gom development practice; large reserves (80 MMboe) justify a dedicated host
subsea_to_shore0.694wetlarge reserves (80 MMboe) justify a dedicated host
fpso0.608wetlarge reserves (80 MMboe) justify a dedicated host atypical concept for gom
flng0.537wetlarge reserves (80 MMboe) justify a dedicated host atypical concept for gom

★ = the concept actually selected for this field (where known).

Economics & execution (engine estimate)

Dev system
subsea15
Est. CAPEX
364.0 $MM
Est. NPV
Install vessels
11
Max crane
5000.0 t
Hardware
RJ-08-HYD-15K MC-CH-R4-120

As built (actuals)

Block
Mississippi Canyon 773
BSEE code
MC773
Operator
ENI (NOC)
Concept (as built)
Spar
Engine top pick
Semisub Fps
Match
✗ differs

Architecture & layout (spar)

Subsea architecture — Devils Tower TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser export Export SPAR Well 1 Well 2 Well 3 Well 4 Well 5 Well 6 Well 7 Well 8
Subsea architecture block diagram
Field layout — Devils Tower Spar SPAR Dry tree / surface wellhead Well 1 Dry tree / surface wellhead Well 2 Dry tree / surface wellhead Well 3 Dry tree / surface wellhead Well 4 Dry tree / surface wellhead Well 5 Dry tree / surface wellhead Well 6 Dry tree / surface wellhead Well 7 Dry tree / surface wellhead Well 8 Export Export N 1 km
Plan-view field layout (to scale)

Sources: SubseaIQ field catalog (~2014) + BSEE + curated vessel/ subsea catalogs. Schematics are deterministic, generated from the field concept.