基于经济极限产量的油田生产优化决策研究

OIL PRODUCTION OPTIMIZATION BASED ON ECONOMIC LIMIT PRODUCTION

当油田开采进入中后期,含水率逐渐升高,开采难度逐渐加大,油田进入低产期。随着开采的逐步推进,产量将降低到经济极限产量,若继续开采,油田将出现负效益生产的不利局面。针对这一现状,以Arps双曲递减法、广义卡彼托夫公式法等油田产量预测模型为依据,对影响经济极限产量的因素进行综合分析;利用投入产出平衡原理推导出经济极限产量关于成本、油价的函数关系,并确定最优产量下的成本、油价临界值,降低经济极限产量。对延长油田开采年限、增加经济可采储量、提高产油量、增加经济效益等油田开发规划研究具有一定的参考价值。

In the mid late stage of oil recovery,the increasing water cut makes recovery more difficult.Oil production will gradually drop to economic limit,and continuing development will bring oil production into a situation of adverse benefit.The authors analyze the factors influencing economic limit production by means of Arps hyperbolic decline and КОПЫТВ formula.Then,on the basis of the input/output balance theory,the functional relationship between economic limit production and cost and oil price is deduced and critical value of cost and oil price determined.This study is therefore hoped to contribute to oil field development planning.