CNOOC starts up first ultra-deep well in central Bohai Bay

CNOOC has achieved strong production rates from its first ultra-deep well into the subsurface beneath Bohai Bay, eastern China.

The Bozhong 19-6 condensate gas field D1 well was drilled in central Bohai Bay in 20 m water depth and to an overall depth of 6,088 m. It is currently producing about 6,300 boe/d.

CNOOC estimates the field contains more than 200 Bcm of gas and more than 200 MMcm of condensate.

The company has implemented a phased/pilot strategy for the development between 2020 and 2024 (the overall project comprises Bozhong 19-6 Phase I and the 13-2 Block 5 well site development).

Current total production is close to 37,500 boe/d.

CNOOC Vice President Sun Fujie said, “The high-yield well further confirms the promising potential of offshore deep buried hill plays. The exploration and development of oil and gas resources in the deep plays is expected to accelerate.”

Earlier this year, CNOOC started up its Suizhong 36-1/Luda 5-2 Oilfield Secondary Adjustment and Development project in the Bohai Sea offshore eastern China.