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1 .通过排水 ,水区和主产区地层压力趋于平衡 ,边水的侵入得到控制在气藏开采早期 ,气藏北部高渗透区形成了一个压降漏斗。北部水区地层水在压差作用下 ,沿裂缝窜 ,封闭基岩中的天然气 ,降低气藏产量和采收率。 1 992年 1月 ,气藏实施 50 0ｍ3/ｄ的联合排水方案 ,通过强化排水
1. Through the drainage, strata pressure in the water area and main producing area tend to balance, the intrusion of edge water is controlled. In the early stage of gas reservoir development, a pressure-reducing funnel formed in the high permeable area in the northern part of the gas reservoir. Formation water in the north of the water area will channel along the fissures and seal the natural gas in the bedrock under the pressure difference to reduce the yield and recovery of gas reservoirs. In January 1992, a joint drainage project of 50 0 m3 / d was implemented in the gas reservoir. Through enhanced drainage