Field Development Plan — Camden Hills

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

Engineering rationale

Camden Hills is a small, record-water-depth (~2,220 m, ~7,280 ft) gas accumulation that anchored the multi-operator Canyon Express subsea gas-gathering system, tied back ~50 miles to shallow-water host facilities (Williams Canyon Station / Virgo) rather than developed alone. The Canyon Express concept combined Camden Hills with Aconcagua and King's Peak into shared dual flowlines with subsea multiphase metering and methanol injection, because no single field held enough gas to justify dedicated deepwater infrastructure at this cost and depth. Wet-tree subsea wells with intelligent (downhole-controlled) completions were used to manage high-rate deepwater gas producers and minimize intervention. Limited reserves in a high-cost environment led to relatively early depletion. Notable: Set a world water-depth record for subsea gas production at startup as part of the pioneering multi-operator Canyon Express system.

Field parameters

Water depth
2220.0 m
Concept
subsea_tieback
Fluid
gas
Operator
Originally Marathon-operated; ATP (former WI holder) defunct since 2012; Canyon Express system depleted and decommissioned
Wells
2
Plateau
Tieback
80.0 km
First oil
2002

Recommended concept shortlist

ConceptScoreTreesRationale / flags
subsea_tieback ★0.807wettieback not clearly attractive (distance/capacity/size)
semisub_fps0.746wet
subsea_to_shore0.734wet
spar0.724dry
fpso0.688wethurricane regime: FPSO needs a disconnectable turret

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

Economics & execution (engine estimate)

Dev system
subsea20
Est. CAPEX
474.0 $MM
Est. NPV
Install vessels
9
Max crane
5000.0 t
Hardware
RJ-08-HYD-15K

As built (actuals)

Host
Canyon Express system to Williams Canyon Station / Virgo platform (Viosca Knoll 823)
Play
Miocene deepwater gas sands
First oil
2002
BSEE code
MC348
Confidence
medium

Architecture & layout (subsea_tieback)

Subsea architecture — Camden Hills flowline umbilical jumper control jumper control export Export Existing Host (tieback) Manifold 1 XT 1 XT 2
Subsea architecture block diagram
Field layout — Camden Hills Subsea manifold Manifold 1 Subsea tree (wet XT) XT 1 Subsea tree (wet XT) XT 2 Existing host (tieback) Existing Host (tieback) 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.