Eng ineering Design Institute, Southwe st Company, SINOPEC, Deyang 61800, China
摘要
运用R /S 分形理论对洛带气田10余口产量递减井进行分析, 分别计算了赫斯
特指数, 其计算值均大于05, 表明气井的产气量变化具有明显趋势性成分, 所以产量时间序
列的拟合和预测是合理的。引入BP模型对气井的产量进行拟合, 并在此基础上进行产量预
测, 结果表明该模型有效、可行。
Abstract
The fundam enta l pr inc iple and m ethod o f the R /S analysis is adopted to ca lcu late the H urst index over ten gas w e lls whose production is descending in Luoda i gas field. A ll o f the Hurst index are greater than 0. 5. It show s that the m atching and antic ipation o f gas production is reasonable. Th is paper uses the BP model to m atch and predict the production of g as w ells, w hich proves tha t th is model is effective and practica .l