The Origin and Diagenesis of Sedimentary Organic Nitrogen

Abstract

This paper provides an overview of the current state of knowledge concerning the inclusion and transformation of nitrogen in sedimentary organic matter (SOM). The main .focus is on petroleum forming systems, although some mention is also given to coal.

Thermal degradation of organic matter in the interlayer clay–organic complex: A TG-FTIR study on a montmorillonite/12-aminolauric acid system

“…In an acidic microenvironment that is comparable to that applied in this study, it is quite possible that the amidoand amine groups in sediment are protonated and hence intercalated into the interlayer space of clay minerals via cation exchange to form interlayer clay-organic complexes. As summarized by M. Baxby, the total organic nitrogen concentration decreased with the increasing sediment depth and with the increased release of NH 3 ; the loss of nitrogen was related to biodegradation in the surface sediment and to chemical reactions in the deep stratum (Baxby et al, 1994). Most of the organics within the interlayer space of clay minerals can avoid the biodegradation.…”

Observations of VOC emissions and photochemical products over US oil- and gas-producing regions using high-resolution H<sub>3</sub>O<sup>+</sup> CIMS (PTR-ToF-MS)

“…14); aromatic nitrogen species may also form through chemical processes in the oil reservoir. There are large differences in nitrogen content and speciation between reservoirs, which could explain why these species were detected in some regions and not in others (Baxby et al, 1994;Li et al, 1995;Oldenburg et al, 2007).…”

New Approach for Detection of Ultra Trace Amounts of Organic Compounds as Markers of Predict to Exploration of Petroleum Reservoir by Cloud Point Extraction Combined with UV-VIS Spectrophotometry and GC-MS Techniques

“…Organic nitrogen and sulphate compounds occur in crude oils in very small amounts, with an average content about 0.l%by weight [9]. Most nitrogen and sulphate compounds in petroleum are in heterocyclic aromatic structures and are concentrated in the large molecular weight and high boiling point fractions [5,10].…”