... as a step by step analysis is done. Results of the use of this methodology will also be illustrated. itt curve trend line velocity trend line transit time information upstream oil & gas overlay sonic log surface seismic data straight normal trend line itt pore pressure itt pore...

... density runa had been made on a particularly troublesome well, but nothing really unusual developed in the curve, other than a normal trend line. In the laat 3000 of the hole a large increase in shale density was noted. This normally indicates two conditions; a change in formation, and since the shale...