US Patent 10444388 Using seismic data to determine wellbore location while drilling

Some aspects of what is described here relate to seismic data analysis techniques. A seismic excitation is generated in a first directional wellbore section in a subterranean region. A seismic response associated with the seismic excitation is detected by a fiber optic distributed acoustic sensing array in a second directional wellbore section in the subterranean region. Seismic response data based on the seismic response are analyzed to identify a location of a third wellbore in the subterranean region. A drilling direction for drilling the third wellbore is determined based on the identified location.