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《Petroleum Geology & Oilfield Development in Daqing》 2005-03
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A method for calculating formation pressure in low permeable fractured well using earlier well test data

FENG Feng-ping(Daqing Petroleum Institute, Daqing 163318,China)  
Pressure restore well test data of low permeable oil fields cannot test the straight line segment of radial flow, being called earlier well test data. However, low permeable oil fields have a lot of fractures developed, and oil wells need fracturing. This paper analyzes the bottom hole flow characteristics in the earlier period of pressure restore test in fractured wells. Earlier flow in bottom hole is fracture single direction flow. It constructs a method for calculating formation pressure using earlier well test data according to long shut-in pressure restore data.
【CateGory Index】: TE353
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