Abstract

The observation of hydrocarbon fluid wave over subsurface fractured hydrocarbon porous rock at low frequency (2-4 Hz) is main subject of our discussion. The theory of seismic wave propagation cannot explain this phenomena well enough. We develop a theory for possibility of hydrocarbon fluid wave from multi-fluid filled fractured subsurface porous rock where multi-fluids are being associated with abnormal high pressure zones. It has low frequency, low velocity and high amplitude in character. Results of the theoretical research corresponds to the data of field experiment.