出水气井泡沫排水采气化学剂的应用技术

Application Technology of Chemical Additives Used for Foam Drainage Gas Recovery in Water-bearing Gas Well

出水气井泡沫排水采气联合化学作业技术目前已广泛应用于产水量不大且具有一定自喷能力的气井。文章归纳分析了目前国内采用的泡排采气用化学剂类型、组成、性能或功能、应用技术研究与现场应用情况,认为只有针对不同的气田有水气藏区块的储层特性和气井具体情况,选择不同的化学剂类型与应用条件进行联合化学作业,才能提高出水气井的产量,防止井筒腐蚀和达到环境保护的目的。

The technology of the foam drainage gas recovery in water-bearing gas reservoir connected with chemical action is applied widely in the gas well that its WPR is small and its flowing ability is realizable. This paper sums up and analyzes the types, components, capability or function, application technology and the field application effect of chemical additives used in China at present. This paper considers that the output production of water yield gas well could be increased and those aims such as wellbore anticorrosion and environment protection could be achieved by selecting different chemical additives to finish the chemical action based on analyzing the reservoir bed characters of different water-bearing gas reservoirs and the condition of different gas well.