China Block 11-1

Landmark: Industry’s First Use of Electric Submersible Pumps in a Multi-well Subsea Environment

Project Overview

• Contract Award: 1994
• Sales: Houston, Texas
• Fabrication: Houston, Texas
• Service Base: Singapore
• Host Type: FPSO
• Contract Type: EPC

Project Characteristics

• No. Trees: 25
• Water Depth: 370 m (1,210 ft)
• Tree Type: Horizontal
• Tree Pressure: 2,250 psi
• Tree Bore Size: 4"x2"
• Hydrocarbon: Oil

Project Ownership*

• BP 25%
• CNOOC 75%

*As of 2003, CNOOC owns 100% of the field.

Scope of Work

Subsea

• Twenty-five (25) horizontal 4"x2" 2,250 psi subsea trees
• Manifold flowline jumper system
• Workover and production control system
• Offshore installation support
• Electrical Submersible Pumps (ESPs)
• Modular manifolds
• Hard pipe jumpers
• Flowline initiation hubs
• Jumper sleds
• Workover risers (dual bore)
• System integration testing, installation assistance, service and maintenance

Floating Production

• Conversion of tanker into an FPSO (supplied by MODEC)
• Internal turret mooring system and process facilities (supplied by FMC SOFEC)

Comments

Located 70 km (120 miles) southeast of Hong Kong in 370 m (1,210 ft) of water, the Liuhua project is a state-ofthe- art production system comprised of twenty-five (25) subsea trees. Each well is produced through horizontal subsea trees with ESPs, marking the industry’s first use of ESPs in a multi-well subsea environment. Each tree has a revolutionary electrical power connector to supply power to the ESP.

Discovered in 1987, the Liuhua reservoir was jointly developed by Amoco Orient Petroleum Company, China Offshore Oil Nanhai East Corporation and Kerr-McGee Liuhua Limited. The Liuhua 11-1 Field is estimated to contain over one billion barrels of oil, making it the largest offshore oil deposit in the South China Sea.

Liuhua is in a severe-weather environment where typhoons occur frequently and can complicate operations. Liuhua is evidence that FMC Technologies Integrated Subsea Services are enabling operators to implement new strategies in the cost-effective development of the world’s remaining petroleum reserves.