Fossil Energy – Engineering
Independent engineering consultancy Longitude Engineering has been awarded a contract to provide detailed engineering and project management services for Petroleum Marine Services (PMS), the main EPIC (Engineering, Procurement, Installation, and Commissioning) contractor for the Phase XI Deepwater Project of the West Delta Deep Marine (WDDM) concession.
Located approximately 90 kilometres offshore Egypt, in the north-western Nile Delta region of the Mediterranean Sea, Shell operates the WDDM concession through its joint venture, Burullus Gas Company. The area includes 17 gas fields at water depths ranging from 300 to 1,200 meters.
The Phase XI development of the Burullus gas field involves the tie-in of three subsea twin deep-water natural gas wells. The scope of work includes engineering, procurement, fabrication, installation, and commissioning support for the following:
• Five subsea M-shape rigid jumpers, equipped with deep-water specialised connectors, multiphase gas meters, and sand detection systems.
• Compact twin-well configurations, each with a subsea jumper span limited to approximately 25 meters in length, to be installed in a brownfield environment adjacent to an existing live natural gas deep-water system, part of one of the largest deep-water natural gas networks globally.
• A tie-in structure, namely “Tie-In Spool Base, TSB” designed to accommodate multiple jumpers within a single subsea module, offering enhanced production flexibility and enabling well allocation interchangeability.
• Subsea control system components to support well operation and chemical injection.
Longitude’s engineering scope comprises the detailed design of deep-water rigid jumpers, development of fabrication drawings, onshore and offshore handling procedures, offshore installation engineering, process and stress modelling, and key HSE studies and engineering workshops.
Longitude will deliver these services as a subcontractor to PMS, marking its second consecutive project within the WDDM concession. The company was previously involved in Phase X, awarded in January 2024.
