利用模拟退火算法进行油井流入动态研究

油井流入动态是油井举升优化设计的基础 ,目前国内外研究油井流入动态的方法有多种 ,但是各有其不足和局限性 .为此利用模拟退火方法进行油井流入动态方法研究 .与以往的近似算法相比 ,该方法不需要将单相流和多相流分开讨论 ,且无任何假设条件 ,适用范围广 ;通过实例 ,把模拟退火的预测的产量结果与利用 Vogel方程所预测的产量结果进行比较和误差分析 ,结果表明 ,该算法的误差是非常小的 .因此 ,利用该算法研究油井流入动态非常可行 .

The Study of Oil Inflow Performance by the Simulated annealing Method

Oil well inflow performance is the base of the optimization design of oil well lifting, and at present there is many methods being used to research the oil well inflow performance, but each methods has its defects and limitations. As the result, the simulated annealing algorithm is used to study the oil well inflow performance. Comparison with former similar algorithm, this algorithm doesn′t need the separate discussion of the single phase flow and multiple phase one, and has advantages of no any hypothetical condition and widely using. Finally, this paper compares the forecasted production results with those worked out by Vogel equation and error analysis by using example. The results show that the error is very small. Therefore, the simulated annealing method is feasible to research oil well inflow performance.