... can lead to large errors in the establishment of correlation between petrophysical properties, and (ii) how early knowledge of small heterogeneity length scales can help avoid these errors and thereby reduce the uncertainty in the integration of core and wireline data for the characterization...

... for a given rock, that ρ is uniform across the pore-grain interface. strength contribution plane Symposium well logging variation internal field gradient geometry Upstream Oil & Gas field gradient relaxation length scale log analysis texture panel show pore geometry rectangle...

... distribution in carbonate rocks remains challenging; extreme variability in carbonate depositional environments and susceptibility to a range of post-depositional processes results in complex pore structures comprising length scales from sub-micron to several centimeters. In this paper we illustrate...

... Artificial Intelligence Simulation well logging Fluid Dynamics Sheppard sandstone bulk relaxation natural language flow in porous media correlation relaxation length scale spwla 49th Symposium University log analysis Upstream Oil & Gas fast diffusion limit ilp 0...

... a pore size by means of an eigenmode analysis of the diffusion equation. The solution can be expressed by a sum of orthogonal, normalised eigenfunctions #x3C6; n (Lisitza and Song, 2001) Artificial Intelligence dimension magnetisation well logging Fluid Dynamics correlation length scale...

... correlations for specific rock lithologies. The NMR relaxation response is computed on the digital images and the log mean relaxation time used to estimate the length scales associated with NMR response. We also directly measure sizes based on the pore volumeto-surface-area ratio and critical channel diameters...

... of the conductivity curve depends on the ratio of intergranular to isolated clay porosity. Introduction The depositional history and lithology of rocks are important factors in determining their petrophysical properties. Rocks exhibit structure on many different length scales. Such as the different conduction...