安泽南区块井网井距优化及小井组产能预测

Well Pattern and Spacing Optimization and Small Well Group Capacity Prediction in South Anze Block

在煤储层各向异性较明显的安泽南地区,对不同井距的正方形井网、矩形井网和菱形井网进行了煤层气产能模拟。模拟结果显示,按主渗透方向300m井距,垂直主渗透方向250m井距布置菱形井网时,煤层气井的产能效果最好,为最优井网井距,并利用该井网井距及地层参数对安泽南地区的5口井小井组井型了数值模拟。

In coal reservoir anisotropy obvious south Anze area has carried out CBM capacity simulation for different spacing square,rectangle and rhombus well patterns.The simulated results have shown that on the basis of main permeation direction 300 m well spacing,perpendicular to the direction 250 m spacing to lay out rhombus well pattern,the CBM well capacity effect is the best,thus the optimal well pattern and well spacing.Then using this well pattern,well spacing and strata parameters have numerically simulated capacity of small 5 well group in south Anze area.