Field Development Plan — Great White

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

Engineering rationale

Great White is the anchor field of the Perdido regional hub; the truss spar sits directly on Alaminos Canyon 857 over the field in ~2438 m of water, chosen as a stable deep-draft floating host that supports direct vertical access drilling and dual-gradient subsea boosting in this remote ultra-deepwater frontier. Because the low-energy Lower Tertiary Wilcox reservoirs lack the pressure to flow unaided to surface from such depth, all wells are subsea wet trees commingled into seabed caissons with electrical submersible pumps that boost fluids up the spar risers. The spar gathers Great White plus the nearby Tobago and Silvertip fields within a ~16 km radius, amortizing one host across multiple small Lower Tertiary accumulations. Notable: Hosted by the Perdido spar, the world's deepest spar/production platform at installation.

Field parameters

Water depth
2438.0 m
Concept
spar
Fluid
oil
Operator
Shell
Wells
35
Plateau
100000.0 boe/d
Tieback
—
First oil
2010

Recommended concept shortlist

ConceptScoreTreesRationale / flags
semisub_fps0.746wet—
subsea_to_shore0.734wet—
spar ★0.724dry—
fpso0.688wet— hurricane regime: FPSO needs a disconnectable turret
flng0.622wet—

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

Economics & execution (engine estimate)

Dev system
subsea20
Est. CAPEX
870.0 $MM
Est. NPV
—
Install vessels
9
Max crane
5000.0 t
Hardware
RJ-08-HYD-15K MC-CH-R4-120

As built (actuals)

Host
Perdido spar
Play
Lower Tertiary / Wilcox
First oil
2010
BSEE code
AC857
Confidence
high

Architecture & layout (spar)

Subsea architecture — Great White TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser TTR riser export Export SPAR Well 1 Well 10 Well 11 Well 12 Well 13 Well 14 Well 15 Well 16 Well 17 Well 18 Well 19 Well 2 Well 20 Well 21 Well 22 Well 23 Well 24 Well 25 Well 26 Well 27 Well 28 Well 29 Well 3 Well 30 Well 31 Well 32 Well 33 Well 34 Well 35 Well 4 Well 5 Well 6 Well 7 Well 8 Well 9
Subsea architecture block diagram
Field layout — Great White 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 Dry tree / surface wellhead Well 9 Dry tree / surface wellhead Well 10 Dry tree / surface wellhead Well 11 Dry tree / surface wellhead Well 12 Dry tree / surface wellhead Well 13 Dry tree / surface wellhead Well 14 Dry tree / surface wellhead Well 15 Dry tree / surface wellhead Well 16 Dry tree / surface wellhead Well 17 Dry tree / surface wellhead Well 18 Dry tree / surface wellhead Well 19 Dry tree / surface wellhead Well 20 Dry tree / surface wellhead Well 21 Dry tree / surface wellhead Well 22 Dry tree / surface wellhead Well 23 Dry tree / surface wellhead Well 24 Dry tree / surface wellhead Well 25 Dry tree / surface wellhead Well 26 Dry tree / surface wellhead Well 27 Dry tree / surface wellhead Well 28 Dry tree / surface wellhead Well 29 Dry tree / surface wellhead Well 30 Dry tree / surface wellhead Well 31 Dry tree / surface wellhead Well 32 Dry tree / surface wellhead Well 33 Dry tree / surface wellhead Well 34 Dry tree / surface wellhead Well 35 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.