Field Development Plan — Allegheny

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 (Tlp) matches the concept actually built (Tlp). The recommendation is produced on a blind probe — the as-built concept is stripped before scoring — so the agreement reflects the depth, basin and host-proximity signal, not the answer.

Field parameters

Water depth
989.0 m
Concept
tlp
Fluid
oil
Operator
ENI (NOC)
Wells
Plateau
Tieback
First oil

Recommended concept shortlist

ConceptScoreTreesRationale / flags
tlp ★0.783drytypical of gom development practice
semisub_fps0.782wettypical of gom development practice
spar0.771drytypical of gom development practice
subsea_to_shore0.688wet
fpso0.602wetatypical concept for gom

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

Economics & execution (engine estimate)

Dev system
subsea15
Est. CAPEX
300.0 $MM
Est. NPV
Install vessels
32
Max crane
14200.0 t
Hardware
MC-CH-R4-120

As built (actuals)

Block
Green Canyon 254
BSEE code
GC254
Operator
ENI (NOC)
Concept (as built)
Tlp
Engine top pick
Tlp
Match
✓ match

Architecture & layout (tlp)

Subsea architecture — Allegheny TTR riser TTR riser TTR riser TTR riser export Export TLP Well 1 Well 2 Well 3 Well 4
Subsea architecture block diagram
Field layout — Allegheny TLP (tension leg platform) TLP Dry tree / surface wellhead Well 1 Dry tree / surface wellhead Well 2 Dry tree / surface wellhead Well 3 Dry tree / surface wellhead Well 4 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.