1) increasing curve of logarithm
对数增长曲线
2) exponential growth curve
指数增长曲线
3) exponential growing curve
对数生长曲线
4) growth curve
增长曲线
1.
The graph of growth curve in its growth process is normally characterized by an oblate shape like "S".
增长曲线的增长过程中,其图形表现为像一条压扁的S形曲线,在油田勘探、开发、生产过程中,很多实际生产数据也呈现出S形的增长趋势。
2.
Six growth curves used for prediction of oilfield development indexes expressed with trigonometric function are proposed,thus perfecting and abounding in the existed growth curve methods further.
提出了用三角函数表示的一类用于油田开发指标预测的增长曲线共6条,从而进一步完善和丰富了现有的增长曲线法。
3.
A new growth curve to predict indices of oilfield development, N p=N Rmax t/(a+t)] b, has been proposed, and its formulae for calculating production (Q t) vs time (t), maximum production (Q tmax ), time according maximum production (t m) and Reserves Production Reserves(RPR) have been derived.
提出了一种预测油田开发指标的新型增长曲线 :Np =NRmax[t/(a +t) ]b。
补充资料：对数曲线预测法
对数曲线预测法
【对数曲线预测法】用对数函数:夕=a+bint，来拟合预测对象的历史数据，从而建立预测模型的方法。其适用条件是，预测对象的增长趋势近似于对数函数曲线，并且在预测期限内不会发生突变。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条