Powerwave
It’s a new technique used to improve the performance of waterflooding.
In a perfect world the injection of a liquid would create a piston-like displacement of the remaining oil in place. What actually happens is the non-ideal situation where "fingers" of water bypass the oil.
The Tool Used
a downhole vibration tool based on whirling orbital vibrator.
Operation
Create seismic waves from 5 to more than 500 hertz, and is capable of generating
controllable force levels up to many tens of thousands of pounds.
The direct mechanical contact with the formation allows the device to transmit the
vibration energy from the backward whirling mass into the producing formation.
Mechanisms of Increased Recovery
Changes in Wettability.
Coalescence and/or dispersion of oil drops.
Reduced viscosity
Surface tension
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