Application of Analytical Pyrolysis Techniques to Kerogen Characterization and Fossil Fuel Exploration/Exploitation

Larter, Steve

doi:10.1016/b978-0-408-01417-5.50012-3

Cited by 87 publications

(57 citation statements)

References 50 publications

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“…The reason may be that the sporinite is not pure (only 52%) and mixed with vitrinite and inertinite. Implications from the ratio m+p-xylene/n-octene are the same (Larter, 1984). The alkylbenzenes, alkylnaphthalenes, and alkylphenols originate from the pyrolytic degradation of lignin, sporopollenin, and polycarboxylic acids (Stout and Boon, 1994).…”

Section: E Pyrolysis Productsmentioning

confidence: 79%

Comparison of the Geochemical Characteristics of “Barkinite” and other Macerals from the Dahe Mine, South China

Sun

Horsfield

2005

Energy Exploration & Exploitation

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Late Permian coal samples from the Dale Mine, South China, were separated into maceral groups in order to compare the characteristics of "barkinite" with vitrinite, inertinite, and sporinite. The maceral groups were extracted and analysed by GC-MS. The extract residues (kerogen) were analysed by open-system pyrolysis. The results indicate that "barkinite" has geochemical characteristics different from those of vitrinite, inertinite, and sporinite. The significant differences lie in the compound contents obtained by open-system pyrolysis method. The contents of saturated and aromatic compounds from the "barkinite" sample are also different from the vitrinite, inertinite, and sporinite samples, but these differences are observed only in their compound quantities.

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Section: E Pyrolysis Productsmentioning

confidence: 79%

Comparison of the Geochemical Characteristics of “Barkinite” and other Macerals from the Dahe Mine, South China

Sun

Horsfield

2005

Energy Exploration & Exploitation

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“…mineralorganic interactions occurring during pyrolysis; Horsfield & Douglas 1980) the proportion of resolved and identifiable compounds in the GC trace reflects the kerogen structure as a whole (Larter 1984;Horsfield 1989). Their GC traces show that the whole-rock samples analysed here tend to generate high percentages of low molecular weight compounds (C 1 -C 5 ) and high concentrations of aromatic compositions such as ethylbenzene, xylenes, trimethylbenzene and naphthalene (Fig.…”

Section: Whole-rockmentioning

confidence: 87%

“…5). Two additional ternary diagrams were used to characterize the pyrolysate in terms of aromaticity, paraffinicity and either sulphur content (Eglinton et al 1990) or phenol content (Larter 1984). They clearly show that the whole-rock pyrolysate is very aromatic (Fig.…”

Section: Whole-rockmentioning

confidence: 99%

On the primary and secondary petroleum generating characteristics of the Bowland Shale, northern England

Yang

Horsfield

Mahlstedt

et al. 2015

JGS

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The Carboniferous Bowland Shale of northern England has drawn considerable attention because it has been estimated to have 1329 trillion cubic feet hydrocarbons in-place (gas and liquids) resource potential (Andrews 2013). Here we report on the oil and gas generation characteristics of three selected Bowland Shale whole-rock samples taken from cores and their respective kerogen concentrates. Compositional kinetics and phase properties of the primary and secondary fluids were calculated through the PhaseKinetics and GOR-Fit approaches and PVT modelling software. The three Bowland Shale samples contain immature, marine type II kerogen. Pyrolysate compositions imply primary generation of paraffinic–naphthenic–aromatic (PNA) oil with low contents of wax and sulphur. Bulk kinetic parameters have many similarities to those of productive American Palaeozoic marine shale plays. The secondary gas generation potential of Bowland Shale is greater than the primary gas potential although it requires a 10 kcal mol −1 higher activation energy to achieve peak production. Primary oil, primary gas and secondary gas reach their maximum generation at 137, 150 and 200°C respectively for a 3°C Ma −1 heating rate. Different driving forces of expulsion including the generation of hydrocarbon and overpressure caused by phase separation during sequential periods of subsidence and uplift could be inferred.

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“…Flash pyrolysis is considered one of the most powerful analytical tools for exploring the chemical structure of kerogens (e.g. van de Meent et al, 1980;Larter, 1984;Nip et al, 1988). Hence, we have used this approach, employing a method that permits quantification of the GCamenable products obtained by Curie point pyrolysis-gas chromatography.…”

Section: Introductionmentioning

confidence: 99%

Molecular indicators for palaeoenvironmental change in a Messinian evaporitic sequence (Vena del Gesso, Italy): III. Stratigraphic changes in the molecular structure of kerogen in a single marl bed as revealed by flash pyrolysis

Gelin

Damsté

Harrison

et al. 1995

Organic Geochemistry

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Abstract--Kerogens of nine samples from a single marl bed of the Gessoso-solfifera Formation in the Vena del Gesso basin (Messinian, Italy) were qualitatively and quantitatively studied by analytical pyrolysis. Relationships between the nature of the pyrolysis products and the source organisms were determined. The high abundance of (i) algal-derived components (n-alkanes and n-alk-1-enes) and (ii) sulphur-containing and sulphur-bound products signifying a high degree of early diagenetic sulphurization were observed. Presence of photic zone anoxia during the deposition of these sediments was discussed via the presence of 1,2,3,4-tetramethylbenzene in the pyrolysates. Unusual distributions were found for three series of pyrolysis products (i.e. Ct3 and C~4 n-alkylated thiophenes and thiolanes and C~2 and C~3 n-l,3-alkadienes were by far the major products of these series) in the pyrolysates of two samples corresponding to the middle of the cycle (samples 3 and 5) which also have the highest 613Cro C values and the highest pyrolysis yields. Therefore, the contribution of organisms biosynthesizing resistant algal biopolymer was considered as much more important during the deposition of the sediments associated with samples 3 and 5. We finally proposed partial structural elements from which the specific low molecular weight compounds of samples 3 and 5 can be derived upon pyrolysis.

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Application of Analytical Pyrolysis Techniques to Kerogen Characterization and Fossil Fuel Exploration/Exploitation

Cited by 87 publications

References 50 publications

Comparison of the Geochemical Characteristics of “Barkinite” and other Macerals from the Dahe Mine, South China

Comparison of the Geochemical Characteristics of “Barkinite” and other Macerals from the Dahe Mine, South China

On the primary and secondary petroleum generating characteristics of the Bowland Shale, northern England

Molecular indicators for palaeoenvironmental change in a Messinian evaporitic sequence (Vena del Gesso, Italy): III. Stratigraphic changes in the molecular structure of kerogen in a single marl bed as revealed by flash pyrolysis

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