Geochemistry and habitat of natural gases in Italy

Mattavelli, L.; Novelli, L.

doi:10.1016/b978-0-08-037236-5.50007-5

Cited by 10 publications

(20 citation statements)

References 3 publications

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“…All dry seeps along the Chain are unequivocally thermogenic. In both diagrams, we have compared the seep gas with the corresponding reservoir gas, represented by thermogenic Apenninic and biogenic Po Plain fields (Figure 2) [Mattavelli and Novelli, 1988]. Whereas the dry-seeps maintain the thermogenic signature of the Apenninic gas, all MVs, except the two mixed, are shifted towards higher C 1 /(C 2 + C 3 ) ratios, falling also outside the thermogenic field.…”

Section: Gas Origin and Fractionationmentioning

confidence: 99%

Methane seeps and mud volcanoes in Italy: Gas origin, fractionation and emission to the atmosphere

Etiope¹,

Martinelli²,

Caracausi³

et al. 2007

Geophysical Research Letters

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Molecular composition, CH4 isotopes and gas flux of all main terrestrial mud volcanoes and other methane seeps in Italy are being assessed for the first time. Whereas 74% of the Italian gas reservoirs are biogenic, about 80% of the seeps release thermogenic gas. Dry‐seep gas generally maintains the reservoir C1/(C2 + C3) “Bernard” ratio while mud volcanoes show molecular fractionation likely occurring during advective migration. Accordingly, a simple and direct use of the “Bernard” parameter might be misleading when applied to mud volcanoes as it could not always reflect the reservoir composition. Methane flux into the atmosphere from macro‐seep areas is in the order of 102–106 t km−2y−1. Microseepage is widespread throughout large areas and, on a regional scale, it provides the main methane output. A first emission estimate for the total hydrocarbon‐prone area of Italy suggests levels of 105 t y−1, comparable to national sources from fossil fuel industry.

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Section: Gas Origin and Fractionationmentioning

confidence: 99%

Methane seeps and mud volcanoes in Italy: Gas origin, fractionation and emission to the atmosphere

Etiope¹,

Martinelli²,

Caracausi³

et al. 2007

Geophysical Research Letters

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“…In addition, numerous papers in the literature cite the use of chlorin‐e6‐trimethyl ester and its derivatives in oncology as photodynamic therapeutic agents because of the chemical's potential for carrying other compounds across cell barriers. Both the compound's structure and the literature review of geoporphyrins suggest this compound is capable of metal complexation (e.g., of iron, copper, and nickel) , and hence it is plausible that the heavy metals could produce cell toxicity caused by the co‐transport of such metals across the cell membrane. Heavy metal analyses of the waters collected during the active fish kill cycles I and II showed various metals present.…”

Section: Discussionmentioning

confidence: 99%

Novel contaminants identified in fish kills in the Red River watershed, 2011–2013

Jones-Lepp

Taguchi

Sovocool

et al. 2017

Enviro Toxic and Chemistry

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Provisional molecular weights and chemical formulas were assigned to 4 significant previously unidentified contaminants present during active fish kills in the Red River region of Oklahoma. The provisional identifications of these contaminants were determined using high-resolution liquid chromatography-time-of-flight mass spectrometry (LC-TOFMS), LC-Fourier transform ion cyclotron resonance mass spectrometry (LC-FTICRMS), and LC-ion trap mass spectrometry (LC-ITMS). Environmental water samples were extracted using a solid-phase extraction (SPE) method, and sediment samples were extracted using a modified sonication liquid extraction method. During screening of the samples, 2 major unknown chromatographic peaks were detected at m/z 624.3 and m/z 639.3. The peak at m/z 639.3 was firmly identified, through the use of an authentic standard, as a porphyrin, specifically chlorin-e6-trimethyl ester, with m/z 639.31735 (M + H) and molecular formula C H N O . The other major peak, at m/z 624.3 (M + H) , was identified as an amide-containing porphyrin. It was discovered that the amide compound was an artifact created during the SPE process by reaction of ammonium hydroxide at 1 of 3 potential reaction sites on chlorin-e6-trimethyl ester. Other unique nontargeted chemicals were also detected and the importance of their identification is discussed. Environ Toxicol Chem 2018;37:336-344. Published 2017 Wiley Periodicals Inc. on behalf of SETAC. This article is a US government work and, as such, is in the public domain in the United States of America.

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“…Mattavelli and Novelli [88] identified a narrow area, corresponding to the foredeep of the Apennine belt, where 77% of Italian natural gases were discovered (Figure 8). Here, the synsedimentary tectonics, the highly efficient turbidite systems coupled with subsidence, favoured the generation (and also trapping) of natural gases.…”

Section: Geochemistrymentioning

confidence: 99%

“…Several chemical analyses of major ions were available for the water samples with complementary notes on the Figure 8: Location of wells with chemical analyses available on gas and with traces of exsolved gas (data from [74]). The oil and gas leases are from [74,97], whereas the area with a high occurrence of hydrocarbons is from Mattavelli and Novelli [88]. The data shown are only for Abruzzo.…”

Section: Geochemistrymentioning

confidence: 99%

A Methodology for Assessing the Favourability of Geopressured-Geothermal Systems in Sedimentary Basin Plays: A Case Study in Abruzzo (Italy)

et al. 2019

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We exploit the concept of the geothermal favourability, widely used for hydrothermal and EGS systems, to present an innovative methodology for assessing geopressured-geothermal resources occurring in terrigenous units in sedimentary basin plays. Geopressured-geothermal systems are an unconventional resource for power trigeneration exploiting three forms of energy from hydrocarbons, hydrothermal fluids, and well-head overpressure. This paper is intended to be a practical analytical framework for the systematic integration of the relevant data required to assess geopressured-geothermal resources. For this purpose, innovative parameters were also implemented in the methodology. The final result is the favourability map for identifying prospective areas to be further investigated for the appraisal of the geopressured-geothermal potential. We applied our methodology to the foredeep-foreland domains of the Apennines thrust belt in the Abruzzo region (central Italy). We analysed hundreds of deep hydrocarbon wells in order to create 3D geological and thermo-fluid dynamic models at a regional scale as well as to obtain information on the pressure regimes and on the chemistry of the system. The final favourability map for the Abruzzo case study is a first attempt at ranking these kinds of unconventional geothermal resources in a region that has been historically explored and exploited mostly for hydrocarbons.

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Geochemistry and habitat of natural gases in Italy

Cited by 10 publications

References 3 publications

Methane seeps and mud volcanoes in Italy: Gas origin, fractionation and emission to the atmosphere

Methane seeps and mud volcanoes in Italy: Gas origin, fractionation and emission to the atmosphere

Novel contaminants identified in fish kills in the Red River watershed, 2011–2013

A Methodology for Assessing the Favourability of Geopressured-Geothermal Systems in Sedimentary Basin Plays: A Case Study in Abruzzo (Italy)

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