CNOOC switches to onshore power for Bohai Bay fields

Offshore staff

HONG KONG – CNOOC has started operations at its Qinhuangdao/Caofeidian onshore power facilities in the mid-western Bohai Bay region of China.

This encompasses the Qinhuangdao 32-6 and Caofeidian 11-1 oilfields onshore power project, and the Qinhuangdao 32-6 facility capacity expansion project.

The Qinhuangdao 32-6 oilfields are 20 km (12.4 mi) offshore, in an average water depth of 19 m (62 ft), while the Caofeidian 11-1 oilfields are 30 km (18.6 mi) from the coast in 25 m (82 ft) of water.

Serving them are two onshore high-voltage switching stations and two offshore electric power platforms, with a power transmission capacity of 200 MW, supplying the Qinhuangdao 32-6, Caofeidian 11-1, and Caofeidian 6-4 oilfields.

The Qinhuangdao 32-6 capacity expansion project involved construction of two oil-water processing platforms, both reliant on electricity from the onshore power project to boost oil production, which should now peak at around 8,100 b/d in 2023, 20% higher the current level.

CNOOC added that with the new onshore facilities, compared with electricity generated on the platforms, the fields should save 85,900 t of standard coal equivalents, with NOx emissions reduced by 4,000 t and CO₂ by 186,000 t in peak years.

09/23/2021