... Abstract This paper discusses well integrity evaluation using LWD sonic monopole data. The first part of the paper explains the methodology which enables full range cement bond index determination i.e. 0 to 1; a hybrid method which uses both amplitude and attenuation through a receiver array...

... methods developed to identify the reliability of bond index computation with the current LWD sonic tools. The methods utilize information on the amplitude, transit time, and attenuation of the sonic waveforms acquired along a receiver array, as well as extensive modeling using the finite-difference method...

... signals measured at all the stations have similar level of amplitude after the correction for geometrical spreading and, therefore, we can conclude that all the stations are reasonably coupled to the formation through the casing. According to the scaling law in seismology, we proposed a method...

... overpressure Muroto Reservoir Characterization pressure data pressure record Nankai Trough Japan reservoir geomechanics continuous downhole pore pressure record amplitude Upstream Oil & Gas décollement site 808 18th formation evaluation symposium davis Becker The 18th Formation...