The invading water helps drive the oil to the producing wells, leading to improved oil recoveries. Trapping surfaces represent impenetrable surfaces and are discounted automatically as possible water-entry points. Fifth, a material balance analysis can help diagnose water influx. För andra betydelser, se Bottomless Lake. The remaining outer surfaces need to be evaluated and classified. The example water and solution-gas drives yield final pressures of and psia, respectively. Nelsonflodens avrinningsområde [ 1 ].
The initial reservoir pressure is 2, psia.
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Special attention should be paid to the location of high-water-cut wells. The success of the third phase depends heavily on the success of the preceding two phases. The gas saturation increases as soon as the pressure falls below the bubblepoint. Trapping surfaces represent impenetrable surfaces and are discounted automatically as possible water-entry points. The waterdrive yields a lower terminal pressure because lower gas saturations are realized at a given pressure.