关键词: 热采, 系统, 经济分析, 数学模型

Abstract: It is well known that the design of equipment capacities has significant influences on the equipment investment and furthermore on the economy of the thermal recovery process of heavy oil because the oil production depends greatly on time. In this paper a new mathematical model for determining the economical equipment capacity of the heavy oil thermal recovery system is proposed. First of all,the variation of the production data was investigated with statistics based on the recorded production data. It was found that the equipment capacity gap,namely the difference between the averaged liquid production of the thermal recovery system and the corresponding equipment capacity, dominantly affects the economy of the production process. Then a mathematical relation between the equipment capacity and the equipment capacity gap was derived.Finally a theoretical economic limit was proposed, correlated with the equipment capacity,the variation of the liquid production of the system,the mean oil price and the equipment investment.

Key words: thermal recovery, system, economical analysis, mathematical model