榆林南区山_2气藏气井产水机理及排水采气措施研究

Water Production Mechanism and Drainage Gas Recovery Measures of the Shan_2 Gas Reservoir in Southern District of Yulin

文中在对榆林南区山2气藏气井产水特征分析的基础上,初步探讨了本气藏产水的主要机理,得出本气藏产水主要受构造特征、储层沉积特征、孔隙结构的影响,最后研究了优选管柱、泡沫、气举等排水采气工艺,提出了榆林南区山2气藏实际推荐使用泡沫排水采气方法。

Based on the analysis of the characteristics of water production,this paper discussed the main mechanism of water production in shan2 gas reservoirs. It is concluded that the water produced in this gas reservoir is mainly affected by the structural characteristics, reservoir sedimentary characteristics and pore structure. At last,this paper studied the drainage gas recovery processes,such as drainage recovery of pipe string,foam drainage,gas lift and drainage,ect. The practical use of foam drainage gas recovery method is proposed for shan2 gas reservoirs in Southern District of Yulin.