... comparison of the wireline images with the LWD images in the Eagle Ford Shale and Buda Limestone formations, with both sets of images illustrating borehole spiraling associated with the bend in the mud motor. Figure 24: - Log section comparing radius and acoustic impedance images from wireline data with LWD...

...-specific petrophysical interpretations. Laboratory measurements provide key benchmarks for Monte Carlo modeling for validating liquid-saturated rock as well as gas-saturated rock models. This paper presents a very-low-porosity gas saturation evaluation example for two limestone formations in Oklahoma...

... Modeling & Simulation MCNP migration length interpretation Upstream Oil & Gas detector count porosity difference neutron porosity measurement log analysis porosity log borehole Symposium borehole size well logging Limestone Formation coefficient perturbation...

... porosity formation salinity correction Monte Carlo correction Upstream Oil & Gas simultaneous correction salinity mutually-dependent environmental effect well logging diffusion length experimental data Limestone Formation sequential correction porosity Symposium standoff SPWLA 40ti...

..., the ratio VP/Vs would be appropriate. Example 2 Our second example is from a thick shale section overlying a limestone formation. The limestone wavetrains (Figure 4a) show a clear S wave arrival while no S-wave is visible in the shale (Figure 4b). A binary plot of the shale data is shown in Figure 5. Again...

... spreading taken into account. For S wave attenuation the best method seems to be the analysis of the guided waves spectral amplitudes at two or more frequencies and then solve for the S wave attenuation using the partition coefficients. log analysis attenuation well logging Limestone Formation...