敖包塔油田合理注采比研究

Reasonable Injection-production Ratio in Aobaota Oil Field

根据渗流力学原理 ,分析了地层压力与注采比、地层压力与流压、地层压力与产液量之间的相互关系及其影响因素。在机理研究的基础上 ,运用数理统计方法定量地分析了地层压力的变化以及各种因素对地层压力的影响程度 ,在此基础上建立了地层压力定量计算的数学模型。根据模型 ,可以在给定某油田油井地层压力、流压、产液量合理值情况下求得该油田在某一时期的合理注采比 ,从而为油田开发综合调整方案的编制提供理论依据。为了方便现场管理 ,应用所建立的数学模型 ,在给定油井地层压力、流压、产量可能出现的数值范围的情况下 ,制成了合理注采比测算表和标准图版 ,使用时只要给出某油田某一开发阶段合理的地层压力、流压、产量 。

According to the theory of seepage flow,this paper analyzes the relations between formation pressure and injection production ratio,flowing pressure,production and the factors that affect formation pressure. Based on mechanism research,it analyzes quantitatively the change of formation pressure and the influencing degree of all the factors to the formation pressure using mathematical statistics so as to establish a mathematical model for calculating formation pressure quantitatively.According to the model,we can calculate the reasonable injection production ratio of an oil field in a certain period of time if formation pressure and flowing pressure and production of oil wells are reasonable,providing a theoretical basis for the work out of the general adjustment scheme of the oil field development.We make a reasonable injection production ratio calculating table and a standard plate considering possibly arisen scales of formation pressure and flowing pressure and production of oil wells using the established mathematical model for the convenience of scene administration.We can find directly the reasonable injection production ratio in the table or the plate if ascertaining reasonable formation pressure and flowing pressure and production of an oil field in some time.