title: The effect of wait time on T2 distributions from NMR experiments.
abstract: Nuclear magnetic resonance (NMR) relaxation curves for both T1 and T2 on two brine-saturated core plugs have been measured at 1 MHz. T2 distributions were extracted from Carr-Purcell-Meiboom-Gill (CPMG) measurements using different wait times between consecutive echo sequences. The analysis was performed with both a limited number of exponentials and a continuous B-spline basis. The distributions depend strongly on wait time. The distributions were generally restored to the true distributions when a wait time correction was applied.
authors.affiliation: Department of Physics, University of Bergen, Norway.
authors.forename: J R
authors.initials: JR
authors.lastname: Lien
authors.forename: C T
authors.initials: CT
authors.lastname: Chang
authors.forename: R
authors.initials: R
authors.lastname: Kulkarni
authors.forename: A T
authors.initials: AT
authors.lastname: Watson
mesh_terms: D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D010578:Petroleum / Q000032:analysis*; D016062:Porosity; D012680:Sensitivity and Specificity; D013997:Time Factors
chemical_list: D010578:Petroleum