Wavelet estimation for a multidimensional acoustic or elastic earth

• DOI: 10.1190/1.1442905
• Publication Date: 2002-10-11T19:44:08Z
• Authors: Arthur B. Weglein; Bruce G. Secrest
• Keywords: Hydrophone

A new and general wave theoretical wavelet estimation method is derived. Knowing the seismic important both for processing data modeling response. To obtain wavelet, statistical (e.g., Wiener‐Levinson) deterministic (matching surface to well‐log data) methods are generally used. In marine case, a far‐field signature often obtained with deep‐towed hydrophone. The do not allow obtaining phase of whereas obviously requires from well. hydrophone that water be deep enough in far field addition reflections bottom structure corrupt measured wavelet. None address source array pattern, which amplitude‐versus‐offset (AVO) studies. This paper presents calculating total including source‐array pattern. When locations specified, predicts spectrum. completely unknown (discrete and/or continuously distributed) wavefield due this source. principle exact yet no information about properties earth required. addition, theory allows either an acoustic (marine) or elastic (land), so consistent model used data. accomplish this, collection procedure. It its normal derivative on surface. procedure multidimensional arbitrary acts like filter eliminate scattered energy calculation. applied may true land obtained. Along derivation procedure, we present analytic synthetic examples.