The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.
It was estimated that the prospect perspective were weakness in Zhidan area once, since data was narrow, and prospect is difficult for complicated landforms (vale, ridge and replat).
The north of Wei Yuan area is in good condition of storage and in normal stratigraphic sequence.It has different drill display on this area, main of which is abnormal gasometry result.