TY - GEN
T1 - Estimating permeability in UAE carbonates using NMR
AU - Wampler, J. J.
AU - Sondergeld, C. H.
AU - Rai, C. S.
AU - Abdelghany, O.
N1 - Publisher Copyright:
© 2010 SEG.
PY - 2010
Y1 - 2010
N2 - Jabal Hafit provides a rare outcrop of important Cretaceous and Tertiary carbonate sequences found throughout the Middle East. This study focuses on permeability estimation from NMR in 72 rock samples from three Middle Eastern carbonate formations, specifically the Rus, Dammam and Asmari formations which are Paleocene to Miocene in age. Our study includes mineralogy, porosity, permeability, NMR, SEM measurements and analyses. We establish a very simple and useful relationship between porosity and permeability for the suite of formations studied. Porosity and permeability form the basis for separating samples into two well defined flow units. NMR measurements are used to define bound and free water based on a T2-cutoff. Desaturation studies show Swir and the corresponding T2-cutoff values vary considerably. We evaluate the Coates and SDR permeability estimators and find the SDR produces better agreement with direct measurements of permeability.
AB - Jabal Hafit provides a rare outcrop of important Cretaceous and Tertiary carbonate sequences found throughout the Middle East. This study focuses on permeability estimation from NMR in 72 rock samples from three Middle Eastern carbonate formations, specifically the Rus, Dammam and Asmari formations which are Paleocene to Miocene in age. Our study includes mineralogy, porosity, permeability, NMR, SEM measurements and analyses. We establish a very simple and useful relationship between porosity and permeability for the suite of formations studied. Porosity and permeability form the basis for separating samples into two well defined flow units. NMR measurements are used to define bound and free water based on a T2-cutoff. Desaturation studies show Swir and the corresponding T2-cutoff values vary considerably. We evaluate the Coates and SDR permeability estimators and find the SDR produces better agreement with direct measurements of permeability.
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M3 - Conference contribution
AN - SCOPUS:85050574215
SN - 9781617389801
T3 - Society of Exploration Geophysicists International Exposition and 80th Annual Meeting 2010, SEG 2010
SP - 2649
EP - 2653
BT - Society of Exploration Geophysicists International Exposition and 80th Annual Meeting 2010, SEG 2010
PB - Society of Exploration Geophysicists
T2 - Society of Exploration Geophysicists International Exposition and 80th Annual Meeting 2010, SEG 2010
Y2 - 17 October 2010 through 22 October 2010
ER -