Rough Seas and Statistical Deconvolution

A-22 ROUGH SEAS AND STATISTICAL DECONVOLUTION E. KRAGH and R. LAWS 1 Schlumberger Cambridge Research High Cross Madingley Road Cambridge CB3 OEL UK Summary: The rough sea ghost response varies along the streamer from shot to shot and with time along the seismic trace. In this paper we examine the application of statistical deconvolution to reduce the rough sea error. Although this conventional method incorrectly assumes wavelet stationarity a partial correction can be achieved provided some modification of the standard application is carried out; the design window should be no longer than 1 s and the application window should lie