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《CHINA PETROLEUM MACHINERY》 1994-01
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Measures for Improving the Fullness Coerfficient or Subsurface Pumps

Xiang Yuzkang.  
The equation for calculating the fullness coefficient of a subsurface pump is derived.Through the discussion of the equation,the main factors influencing the fullness coefficient are found out. It is indicated that,by using a downhole gas separator cooperated with a gas relief valve on wellhead casing or by applying annular valve,pump pressure compensator and cone valve type pump,the adverse influence of gas can be eleminated and the fullness coefficient of the subsurface pump can be improved.
【CateGory Index】: TE933.3
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