Subsea ESPs Restart After Year-Long Shutdown, Saving CNOOC USD 500 Million | SLB
Tech Report
Location
China, Asia, Offshore
Details
Eastern South China Sea
Liuhua LH 11-1 Field
 
Operator
CNOOC Limited
 
Water Depth
300 m
 
Application
Subsea production
 
Background
LH 11-1 field is considered to be the largest subsea ESP artificial lift operation in the world; 25 of its wells have been operating with Schlumberger ESPs. After topside and subsea infrastructures were severely damaged by typhoon Chan Chu, all ESP wells were restarted. Today, ESPs in the field have achieved up to 10 years of run life.
Products Used

Subsea ESPs Restart After Year-Long Shutdown, Saving CNOOC USD 500 Million

ESPs in South China Sea resume pumping to bring production back on line after devastating typhoon

 
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Field map of subsea wellhead layout. Current production in the field is about 23,000 bbls per day of crude oil.

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