METHOD OF WELL PLACEMENT MODELING AND GEOSTEERING

摘要

The present invention is a method of establishing a geographical model of a wellbore that includes receiving a first geographical model of the wellbore and receiving measured log data and a trajectory of the wellbore. A first simulated tool response is simulated along the trajectory based on the first geographical model. A measured tool response is determined based on measured log data. A first portion of the first simulated tool response corresponding to a second portion of the measured tool response is found wherein the first portion and the second portion have substantially a same interval of length along the trajectory. The first portion and the second portion are compared to generate a second geographical model. The second geographical model can be used to geosteer a bottom hole assembly.