Woodside Energy says the final cost of the first-phase development of the deepwater Sangomar field offshore Senegal was around $5 billion.
Production through the FPSO started last year, ramping up in less than nine weeks, with over 94% production achieved during the final quarter. Both water and gas injection systems have been fully commissioned.
According to the company, early results have shown strong performance from the S500 reservoirs, leading to proven and proved-plus-probable reserves additions of 16.2 MMboe and 15.4 MMboe respectively.
Performance of the four injector-producer well pairs in the S400 reservoirs has also exceeded expectations, reducing downside connectivity risk.
Water injection started late last year, with migration of reserves associated with water injection expected later this year.
The FPSO, supplied by MODEC, is designed to process 100,000 b/d of crude oil, 130 MMcf/d of gas, with 1.3 MMbbl crude storage and 145,000 b/d water injection capacity.
Sangomar should continue to produce on plateau into 2Q. The company will base future-phase development decisions on results from 12-24 months of production data.
