DEVELOPMENT AND APPLICATION OF HIGH TEMPERATURE FOAM DISCHARGING AGENT

During the period of gas production,adding High Temperature Foam Drainage Agent (HTFDA) can reduce the surface tension of formation water and well-bore fluid density,improve the flowing state of water and gas,and finally achieve the goal of drainage and gas production.In this paper,the HTFDA,called YCH,which is compatible to the gas-water producing well in Yanchen Oilfield,is chosen by a serious of laboratory experiments.The practices proved that YCH,the HTFDA,ensure gas well discharge liquid continuously and production normally.