A kind of VSP during drilling measures clock system and method

The present invention relates to a kind of clock system and method, belong to technical field of geophysical exploration, be specifically related to a kind of VSP during drilling and measure clock system and method.Including: ground synchronous device, underground synchronous device, energy source synchronizer.The present invention sends synchronous averaging or the unlatching of end signal control downhole instrument and stopping in whole moment second；By the time of recorded downhole with ground timing as reference, thus eliminate time error；Further, ground accurate clock is delivered to down-hole by time data carrying device by the present invention, it is possible to the timing error that correction VSP clock produces because of its Long-term stability difference under the hot environment of down-hole.