Method of estimating geological formation depths by converting interpreted seismic horizons the time domain to the depth domain

摘要

A method of estimating geological location depths by converting horizon data from the time domain to the depth domain is provided wherein the method includes at least a data accumulation step and a data evaluation step, and wherein the data evaluation step further includes assignment of greater statistical weight to data derived from closer data acquisition points than to data derived from further data acquisition points using a weighted regression analysis, with distance being one of several weighting criteria. Layer-by-layer computation of geological formation depths is achieved by extracting values from horizon time data set at exact geographic locations in the next deeper horizon, thereby allowing interval computations to be carried out without the need for gridding.