一种预测油田开发指标的准广义增长曲线

A Quasi-Generalized Growth Curve to Predict Indexes of Oilfield Development.

提出了一种用于预测油田开发指标的新型准广义增长曲线———bttc因子型增长曲线。研究表明,其对应峰值产量的累积产量与最大可采储量之比变化范围为0～1.0;在直角坐标上,Qt—Np关系的最后段可以同时反映它们向上凹和向下凹两种情况;Np—t和Qt—t关系都有解析式。提出了求取这种增长曲线的参数的重复二元回归法。庆祖集油田的计算实例表明这种增长曲线有较大的使用价值。

b t t c factor growth curve,a new kind of quasi-generalized growth curve,which can be used to predict in-dexes of oilfield development,was proposed.The studies show that the ratio of cumulative production and maximum re-coverable reserves corresponding to maximum production is ranged from0to1.0for this growth curve.The end section of the relationship of Q t vs.N p can be concave upward or downward,and the relationship of both Q t vs.t and N p vs.t has the analytical expression respectively.The repeated duality regression method obtaining the parameters of this growth curve was presented.An example from Qingzuji oilfield shows that this growth curve has a greater value for application.