Novel Methods to Prolong the Life of Mature Offshore Oilfield Under Low Oil Price Condition

Su, Yanchun (Tianjin Branch of China National Offshore Oil Company)



The oil price has fallen off dramatically since 2014 which quenched the oil company's enthusiasm to develop new oil fields, especially those with low quality reservoir. For Bohai oilfield, its work is mainly focused on the mature oilfield development in view of its huge reservoir potential, convenient existing facilities and quick fund turnover period. Bohai oilfield has carried out several projects to keep production steady at 3000×104m3 for eight years. In the paper, several methods including high resolution seismic acquisition, potential sands tracking, improving oil recovery (IOR) by water flooding and nanoparticle profile controlling are presented.