Project Profile
Value: US$500 million
Location: Green Canyon Block 859, around 16 kilometres south of the Caesar discovery, USA
Start-up Year: 2013
Reserves: 200-400 MMbbl of recoverable resources
Water Depth: 1,628 m
The Heidelberg well is located in Green Canyon Block 859, around 16 kilometres south of the Caesar discovery. The well was drilled to a total depth of about 9,000 metres and encountered some 60 metres of oil. The Heidelberg field is a part of the Miocene play known for high quality sands. Heidelberg may be tied back to the Constitution spar. Heidelberg is located in 5,340ft (1,628m) of water. The field is located in the Green Canyon area of the US GoM, the ultra-deepwater field has 200-400 MMbbl of recoverable resources.
Operators:
Anadarko: Operator with 31.5% interest
Cobalt International Energy: 9.375% interest
Freeport-McMoRan Copper & Gold Inc: 12.5% interest
Eni: 12.5% interest
ExxonMobil: 9.375% interest
Statoil: 12% interest
Undisclosed party: 12.75% interest
Contractors:
Ensco: Drilling contractor
FMC Technologies: Subsea equipment
Subsea 7: Engineering, fabrication and installation of risers, pipelines and flowlines contract
Technip: Engineering, construction and transport of a 23,000 ton Truss Spar hull
Transocean: Drilling rig
BMT Scientific Marine Services: Contract to provide an environmental and platform response monitoring system and an independent remote monitoring system for the Heidelberg spar in the Gulf of Mexico
InterMoor: Provision of rapid hook-up services for the Heidelberg truss spar in the deepwater of the Gulf of Mexico. At a water depth of 5,300ft, the 80,000bbl/d spar was hooked-up to three mooring lines in Green Canyon block 860, offshore Louisiana. The original contractor of the project resumed the job after the hooking-up work was finished, and completed the remaining six mooring lines along, as well as the spar installation. The company initiated the engineering in March 2015, with offshore work beginning in early June 2015. InterMoor provided crews for each of the five vessels that were mobilised from Fourchon, Louisiana, US. More than 40 InterMoor staff on two tugs and three anchor-handling vessels were mobilised. The main anchor-handling vessels included the Kirt Chouest and the Dino Chouest, with a third one acting as a support between them and the platform. These vessels, including McDermott\'s DB 50, maintained station keeping for the spar and concluded the operations for hook-up to make the spar storm safe.
Sub-contractors:
First Subsea Ltd.: Subsea mooring connector contract for a 23,000-ton truss spar platform moored in 5,310 feet of water in the field
Lankhorst Ropes: Supply Gama 98 polyester deepwater mooring ropes for Technip