Microspectrofluorimetric and microthermometric evidence for variability in hydrocarbon fluid inclusions in quartz overgrowths: implications for inclusion trapping in the Alwyn North field, North Sea

Blanchet, Aurélie; Pagel, Maurice; Walgenwitz, F.; Lopez, A.

doi:10.1016/j.orggeochem.2003.08.003

Cited by 38 publications

(34 citation statements)

References 27 publications

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“…Progressively deformed autochthonous and mostly sedimentary strata ( Figure 2) generally represent relatively shallow, Fluid inclusions represent micro-scale samples of fluids, trapped during the evolution of sedimentary basins, and can be used to identify the composition of fluids associated with diagenetic and post-diagenetic fluid processes [5]. In petroleum systems, fluid inclusion data have been widely used to define hydrocarbon migration and charge histories, especially where there is a complex petroleum charge history (e.g., [6][7][8][9][10][11][12]). …”

Section: Geological Settingmentioning

confidence: 99%

The Use of Integrated Fluid Inclusion Studies for Constraining Petroleum Charge History at Parsons Pond, Western Newfoundland, Canada

2017

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This study, based on fluid inclusion petrography, microthermometry and ultraviolet microspectroscopy of inclusion oil, investigates the petroleum charge history at Parsons Pond, western Newfoundland. To address this matter, drill core and cuttings samples of allochthonous and autochthonous strata in the Parson's Pond area were collected from three exploration wells. Fluid inclusions were examined from fragments of calcite and quartz veins, diagenetic cements in sandstone, and in large hydrothermal dolomite and calcite crystals. Primary aqueous inclusions in authigenic sandstone cements indicate that cementation occurred at relatively shallow depths and low temperatures (<50 • C). Hydrocarbon-bearing fluid inclusions (petroleum, wet gas and gas) are generally restricted to calcite and quartz veins, indicating that petroleum and gas migration at Parson's Pond is fracture-controlled. No hydrocarbons were observed in the diagenetic cements of the essentially tight sandstones. Fluid inclusion microthermometry and ultraviolet microspectroscopy indicate the presence of multiple generations of hydrocarbon fluid, ranging in composition from 33 API gravity petroleum to pure CH 4 . Petrographic evidence suggests that hydrocarbons were generated multiple times during progressive burial and heating. In addition, the distribution of hydrocarbon bearing inclusions with depth suggests that deeper levels are gas-prone, with petroleum confined to relatively shallow depths. Although only gas flow was encountered during the drilling of exploration wells at Parson's Pond, the presence of petroleum-bearing fluid inclusions in calcite and quartz veins indicates that the historical production from shallow wells in the Parsons Pond area likely tapped small reservoirs of fractured petroliferous strata.

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Section: Geological Settingmentioning

confidence: 99%

The Use of Integrated Fluid Inclusion Studies for Constraining Petroleum Charge History at Parsons Pond, Western Newfoundland, Canada

2017

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“…But the colors of OGIs estimated by eyes are subjective and easily influenced by the observing environments [23]. For more precise determination of the colors of OGIs, more and more authors [14,[16][17][18][19] calculated the CIE chromaticity coordinates according to the FMP spectra. McLimans's research results [6] showed that as the oils increase in maturities, the x (red) and y (green) chromaticity coordinates decrease, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…Further examples of crude oils and OGIs have been analyzed using these diagrams. Blanchet et al [16] gave a detailed analysis of OGIs from the North Sea and calibrated oils using CIE diagrams. They observed that the fluorescence colors of inclusion oils are variable even within a single fluid inclusion assemblage and they advanced a number of explanations for this based on geological processes.…”

Section: Introductionmentioning

confidence: 99%

“…Bourdet et al [14,19] expressed the variability in fluorescence colors from OGIs by CIE diagrams. Compared to subjective observation colors of oil inclusion, the CIE method provides more consistent results [5,6,16,18].…”

Section: Introductionmentioning

confidence: 99%

“…The migration of oil and gas was revealed. Chi et al [25], Kirkwood et al [9], Blanchet et al [16], and Bourdet et al [14,19] also used the fluorescence spectral data to estimate the API gravity of the entrapped fluids.…”

Section: Introductionmentioning

confidence: 99%

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Microspectrofluorimetric and microthermometric evidence for variability in hydrocarbon fluid inclusions in quartz overgrowths: implications for inclusion trapping in the Alwyn North field, North Sea

Cited by 38 publications

References 27 publications

The Use of Integrated Fluid Inclusion Studies for Constraining Petroleum Charge History at Parsons Pond, Western Newfoundland, Canada

The Use of Integrated Fluid Inclusion Studies for Constraining Petroleum Charge History at Parsons Pond, Western Newfoundland, Canada

Geochemistry Features of Oil-Gas Inclusions and UV-VIS Micro-spectra Analysis of Single Oil-Gas Inclusions in Bai 95 Oil Well

Potential of Palaeofluid Analysis for Understanding Oil Charge History

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