Abstract:

Besides Poisson's ratio there are quite a few aimless factors which can cause AVO.One can, see their effect directly from diaRraphs of AVO attribution superimposition. Anti-interrupted ability of AVO is far smaller than hortzontal stack. Factors which are of monotonous variation of amplitude and time shift with off-set can form seripus spurious anomalies. It is even bigger than those caused dy poisson's ratio so AVO needs peculiar meticulous processirta before stack.

Key words: Seismtc data processing, AVO attributton supenmposition, Aimless factors, Random noise, Residual time difference