The Estimation Method of T2cutoffValue for Basin Marine Facies Carbonate Cores Based on Fractal Theory

Abstract

ABSTRACT Deng, H.; Sima, L.; Zhang, F.; Liu, F.; Wu, W.; Sui, X., and Wang, X., 2018. The estimation method of T2cutoff value for basin marine facies carbonate cores based on fractal theory. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 287–294. Coconut Creek (Florida), ISSN 0749-0208. Transverse relaxation time cutoff value (T2cutoff ) is one of the most important parameters for nuclear magnetic resonance (NMR) logging. However, traditional experimental methods to determine the T2cutoff value are time-consuming, troublesome and expensive. In this paper, the proposed method derived from fractal theory and Coates model helps to easily get the estimation value of T2cutoff only on the condition of brine-saturated NMR T2cutoff spectrum. To verify the accuracy, experiments of NMR, X-ray and centrifugation have been finished on the basin marine facies carbonate cores from Syria. We find that the method not only disting...