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绪言在气田开发的中后期,由于气层能量下降,地层水沿气流通道涌向井底,使地层能量不能克服井筒的静水压力将气和水排向地面,造成气井不能连续生产或水淹气并而停止生产,在多种助采工艺中,化学泡沫助采工艺简单,效果好,见效快,所以美国、苏联和加拿大等国在七十年代相继使用,效果显著,成功率高。
INTRODUCTION In the middle and later stages of gas field development, due to the decrease of gas layer energy, the formation water flows down to the bottom of the gas flow channel so that the formation energy can not overcome the hydrostatic pressure of the wellbore to drain gas and water to the ground, resulting in the gas wells unable to be continuously produced or flooded As a result, the United States, the Soviet Union and Canada were successively used in the 1970s with remarkable results and high success rates.