Physical modeling of the fracture-cave systems of carbonate reservoirs in Tahe oilfield

Aimed at the special geology of carbonate reservoirs in Tahe oilfield, Three kinds of representative physical models that can reflect this area pores, caves and fracture have been made, and using techniques of ultrasonic seismic physical modeling measure bring forth and analyze changes of seismic wave energy and reflected configurable.Bigger caves appear weak reflected above the caves in section, but within usually form strong diffraction wave and migration form strong and short reflected, series appearance (name a string of beads reflected); fissures systems from disorder phase of reflected seismic and anomaly fractures. Reflected strong and weak are confirmed by velocity difference between overlay and fracture.