Отправлено: 17.04.07 03:13. Заголовок: Получил от Михаила Маркова информацию об интересной статье

J. Glover, I. I. Zadjali, and K. A. Frew
Permeability prediction from MICP and NMR data using an electrokinetic approach
GEOPHYSICS,VOL. 71, NO. 4 JULY-AUGUST 2006; P. F49–F60, 6 FIGS., 2TABLES 10.1190 .1.2216930

ABSTRACT
The accurate modeling of oil, gas, and water reservoirs depends fundamentally upon access to reliable rock permeabilities
that cannot be obtained directly from downhole logs. Instead, a range of empirical models are usually employed.We
propose a new model that has been derived analytically from electrokinetic theory and is equally valid for all lithologies.
The predictions of the new model and four other common models Kozeny-Carman, Berg, Swanson, and van Baaren
have been compared using measurements carried out on fused and unfused glass bead packs as well as on 91 rock samples
representing 11 lithologies and three coring directions. The new model provides the best predictions for the glass
bead packs as well for all the lithologies. The crux of the new model is to have a good knowledge of the relevant mean grain
diameter, for example, from MICPdata. Hence, we have also predicted the permeabilities of 21 North Sea well cores using
all five models and five different measures of relevant grain size. These data show that the best predictions are provided
by the use of the new model with the geometric mean grain size.We have also applied the new model to the prediction of
permeability from NMR data of a 500 m thick sand-shale succession in the North Sea by inverting the T2 spectrum to
provide a value for the geometric mean grain size. The new model shows a good match to all 348 core measurements
from the succession, performing better than the SDR, Timur-Coates, HSCM, and Kozeny-Carman predictions.

Вообще-то позор, что я ее пропустил
Надо лучше отслеживать публикации
И очередной раз большое спасибо Михаилу Маркову