水平井技术在牙哈凝析气田开发中的应用

Application of horizontal well in the development of Yaha condensate gas field.

简述了牙哈凝析气田的地质特点及水平井设计的可行性 ,对水平井开采该气田生产实际进行了分析。开采效果表明 ,在垂向连通性好的高渗透凝析气田中 ,采用水平井生产是经济可行的。利用水平井开发凝析气田可提高气井单井产能、降低生产压差、抑制水锥的形成、减轻反凝析及非达西流对产能的影响。

Geologic features and design feasibility of the horizontal well in Yaha condensate gas field are given in brief. The application of horizontal well to Yaha condensate gas field is analyzed. The response shows that it is economically feasible in the condensate gas field with high permeability and good vertical connectivity. Using the horizontal wells in the condensate gas field can improve the productivity of a single gas well, reduce the producing pressure drop, control the formation of watercone, and it can also reduce the influence of retrograde condensation and nonDarcy flow to the productivity.