Daqing Oilfield experiment of seismo-electric exploration

Seismo-electric coupling has potential application on exploring oil, gas an d water. In order to clear the characters of the effect, several tests on s eismo-electric coupling have been carried out successfully in Daqing Oilfie ld. The experiments show that seismo-electric coupling takes place between DC electric field and seismic wave. Under 10A DC field circumstances, the c ontinuity of prestack seismic events becomes better. Electric field signals companying the seismic wave due to the first type seismo-electric effect o n the surface are received. A horizontal electric field signal with the sam e travel time characters as seismo-electric converted wave from 400m depth is also observed.