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Transcripción del abstract original del autor: More than 300.000 gas wells have been operating ineffectively because of liquid accumulation at well bottom. The most popular technologies to remove liquid are blowing of well clean into atmosphere and surface active agents. But these technologies are expensive and not ecologically clean. The most economically sound and environmentally appropriate technology is plunger lift of new generation. A variety of plunger lift – flying valves began to apply in Russia in 1963. It is a selfregulating system. Flying valve consists of a cylinder and a ball. They descend to a well bottom separately. Then they join and go to a wellhead with liquid, which there is over flying valve. As result of this system using production rates were been increasing from 10 to 300 percentages, operating expenses were been decreasing, blowing of well clean into atmosphere were stopped. Now we developed new improved flying valves from elastomers. New flying valves will work in gas wells for several years without service and destructions. Flying valves will muss applying all over the world to increase and supporting production rates by effective removing liquid and sands from wells.