页岩气井间干扰分析及井距优化

陈京元,位云生,王军磊,于伟,齐亚东,吴建发,罗万静

Interwell-production interference and well spacing optimization in shale gas reservoir

Jing-yuan CHEN,Yun-sheng WEI,Jun-lei WANG,Wei YU,Ya-dong QI,Jian-fa WU,Wan-jing LUO

表4 川南页岩气区块井距优化前后单井开发指标对比

Table 4 Comparison of single well development parameters before and after optimization of typical well spacing at shale gas block in southern Sichuan

参数 X平台 Y平台 Z平台 X1 X2 Y1 Y2 Z1 Z2 优化前 裂缝半长/m 130.2 176.3 167.5 122.1 147.2 129.5 井距/m 400 400 400 400 400 400 EUR/（108 m3） 1.03 0.68 0.99 0.72 0.93 0.73 井控采收率/% 25.6 19.3 28.9 28.6 26.5 21.4 优化后 井距/m 289 392 373 271 327 288 EUR/（108 m3） 0.98 0.67 0.96 0.71 0.90 0.68 井控采收率/% 33.7 19.5 30.3 40.7 29.7 28.9