The near surface scattered wave can be caused by near surface topographical relief and variation of lithological change,this secondary interference is similar to reflection and diffraction in time distance relation and character of frequency,which brings about some difficulty in its recognition and suppression on the records.

In this paper, we show some propaedeutic attitudes about nanometer micrograined structural attribute, expound our view of astride hierarchy which is main structural characteristics of nanometer substance structure.

The first one is the nanometer micrograined structural attribute, in this paper, we show some propaedeutic attitudes to nanometer micrograined structural attribute, expound our view of astride hierarchy is main structural characteristics of nanometer substance.

In order to solve the problems of serious interlayer interference and low productivity of low pressure layer in heterogeneous reservoir multilayer commingled well, the research of separate-layer oil production technology with constant displacement is carried out.

The degree of interlayer interference,technical countermeasures of eliminating the interference and corresponding technical.

Also, the productivity, interlayer interference and corresponding p.

First,the original image is decomposed with wavelet,ratio edge detector is adopted to get the edge direction of manmade targets and Frost filter is performed in the direction,thus efficiently restraining cloud noise and strengthening the manmade target and its edge information at the same time.