Abstract:To get accurate and sequential oilfield pressure data is an essential guarantee of developing oilfield, while the immediate data offshore oilfield gets is limited. Although there is a lot of data related oilfield pressure, including pressure gauge, pump mate, well liquid level, pressure building up, relative permeability curve,production data, it is noncontinuous. The paper utilizes the mentioned data advisablely to get the sequential oilfield pressure by reservoir engineering method. And it is proved correctly by production performance. It provides considerable pressure data for the oilfield.