The offshore bottom water-drive reservoirs in the Pearl River Mouth Basin have an excellent quality of high permeability, low oil viscosity, and extensive aquifer that give high productivity. Most of them have been put on stream, and successfully developed. The recoveries of these reservoirs were improved by capturing their geological features and the movement of the water-oil contact, with reservoir simulation as an important tool in the optimization of the offshore reservoir management. Upon the production performance of these bottom water-drive reservoirs, the initial development plans were adjusted to maximize the production from these reservoirs.On one hand, these reservoirs were depleted with a high depletion rate by fully utilizing the existing infrastructure. The high deleption rate shortens the field production life, reduces the operating cost and maximizes profit of the fields. On the other hand, the high productivity and strong aquifer support become a major concern in the development design of economically marginal bottom water-drive reservoirs, efforts were made to reduce the investment in facilities by simplifying the production system and make the development of such reservoirs viable.Development cases of the bottom water-drive reservoirs discussed below come from Huizhou oilfields.
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