Thermal maturity of type II kerogen from the New Albany Shale assessed by 13C CP/MAS NMR

被引：57

作者：

Werner-Zwanziger, U

Lis, G

Mastalerz, M

Schimmelmann, A

机构：

[1] Dalhousie Univ, Dept Chem IRM ARMRC, Halifax, NS B3H 4J3, Canada

[2] Indiana Univ, Dept Geol Sci, Bloomington, IN 47405 USA

[3] Indiana Univ, Indiana Geol Survey, Bloomington, IN 47405 USA

来源：

SOLID STATE NUCLEAR MAGNETIC RESONANCE | 2005年 / 27卷 / 1-2期

关键词：

C-13 CP/MAS NMR; kerogen; thermal maturity; aromaticity; vitrinite reflectance; maceral composition; New Albany Shale;

D O I：

10.1016/j.ssnmr.2004.08.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Thermal maturity of oil and gas source rocks is typically quantified in terms of vitrinite reflectance, which is based on optical properties of terrestrial woody remains. This study evaluates C-13 CP/MAS NMR parameters in kerogen (i.e., the insoluble fraction of organic matter in sediments and sedimentary rocks) as proxies for thermal maturity in marine-derived source rocks where terrestrially derived vitrinite is often absent or sparse. In a suite of samples from the New Albany Shale (Middle Devonian to the Early Mississippian, Illinois Basin) the abundance of aromatic carbon in kerogen determined by 13C CP/MAS NMR correlates linearly well with vitrinite reflectance. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：140 / 148

页数：9

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