Due to the limitation of thermal production technology and cost in offshore oil fields,cold production test is often used to obtain production capacity of Bohai heavy oil reservoir in evaluation stage.By analyzing the cold production test data of Bohai heavy oil reservoir,combining reservoir engineering theory formula calculation and reservoir numerical simulation calculation,the technical limits for cold production test viscosity of Bohai heavy oil reservoir are determined.On this basis,the thermal production capacity of Bohai heavy oil reservoirs is evaluated using the cold production capacity test data of the oilfield,and a thermal production capacity evaluation method is developed.The research results can be used to judge whether the oilfield is suitable for cold production test and guide the reasonable production capacity allocation of the reservoir so as to save exploration cost and improve oilfield development benefit.
关键词
稠油油藏/冷采测试/产能评价/地层原油黏度/技术界限
Key words
heavy oil reservoir/cold production test/productivity evaluation/viscosity of formation oil/technical limit