Modelling of the thermal history of the Carboniferous Lorraine Coal Basin: Consequences for coal bed methane

Izart, Alain; Michels, Raymond; Privalov, V.A.

doi:10.1016/j.coal.2016.11.008

Cited by 19 publications

(17 citation statements)

References 65 publications

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“…The Permian extension formed large intra-mountainous basins filled with coal and siliciclastics (e.g., Saar-Nahe, Lorraine) [61,62], and records the beginning of the basement weathering [63,64].…”

Section: Geological Contextmentioning

confidence: 99%

Structural Architecture and Permeability Patterns of Crystalline Reservoir Rocks in the Northern Upper Rhine Graben: Insights from Surface Analogues of the Odenwald

et al. 2022

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Fracture network is a crucial element to address in any model of the thermo-hydro-mechanical behaviour of a reservoir rock. This study aims to provide quantified datasets and a further understanding of the critical parameters of the fracture network pattern in crystalline rocks. In the Northern Upper Rhine Graben, such rock units are targeted for multiple energy applications, from deep geothermal heat extraction to heat storage. Eleven outcrops were investigated with a combined LiDAR and 2D profiles analysis to extract faults and fracture network geometrical parameters, including length distribution, orientation, connectivity, and topology. These properties are used to decipher the structural architecture and estimate the flow properties of crystalline units. Fracture networks show a multi-scale power-law behaviour for length distribution. Fracture topology and orientation are mainly driven by both fault networks and lithology. Fracture apertures and permeability tensors were then calculated for two application case studies, including the stress field effect on aperture. Obtained permeabilities are in the range of those observed in the sub-surface in currently exploited reservoirs. The dataset provided in this study is thus suitable to be implemented in the modelling during the exploration stage of industrial applications involving fractured crystalline reservoirs.

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Section: Geological Contextmentioning

confidence: 99%

Structural Architecture and Permeability Patterns of Crystalline Reservoir Rocks in the Northern Upper Rhine Graben: Insights from Surface Analogues of the Odenwald

et al. 2022

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“… 7 − 9 However, after diagenesis, the coal measures usually evolve along with the thermal evolution of the basin; that is, they will be affected by a series of thermal events such as tectonic subsidence, uplift denudation, and magmatic intrusion within basin. 10 , 11 Therefore, it is vital to understand the time and scale of tectono-thermal events in basins to evaluate the potential and prospect of petroleum and geothermal resources in sedimentary strata.…”

Section: Introductionmentioning

confidence: 99%

“…The tectono-thermal evolution of sedimentary basins plays a decisive role in forming fossil energy and geothermal resources and has long been a hot fundamental scientific issue concerned by geologists. − As a typical sedimentary basin, foreland basins generally experience complex geological processes during the basin-forming period, in which the evolution of paleoclimate and paleoenvironment controls the source and enrichment process of organic matters (OMs), and geological events dominated by tectono-thermal actions affect the maturation and evolution process of source rocks. − As for the coal-accumulating basins, the coal, shale, and mudstone, as the most critical hydrocarbon generation horizons, can lay the necessary petrophysical and geochemical foundation for natural gas and geothermal resources. − However, after diagenesis, the coal measures usually evolve along with the thermal evolution of the basin; that is, they will be affected by a series of thermal events such as tectonic subsidence, uplift denudation, and magmatic intrusion within basin. , Therefore, it is vital to understand the time and scale of tectono-thermal events in basins to evaluate the potential and prospect of petroleum and geothermal resources in sedimentary strata.…”

Section: Introductionmentioning

confidence: 99%

Thermal Evolution, Hydrocarbon Generation, and Heat Accumulation of a High Geothermal Coalfield: A Case Study of Pingdingshan Coalfield, China

Wan

Li³

et al. 2023

ACS Omega

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As an important energy base in central China, the Pingdingshan coalfield has abundant coal and geothermal resources. The cooperative exploration of coal and geothermal resources is significant for the comprehensive utilization of energy resources. This work collected coalbearing samples from the Pingdingshan coalfield to investigate the tectonothermal evolution of a high geothermal coalfield, especially the present geothermal field and hydrocarbon generation model. The geochemical results show that the Shanxi and Taiyuan source rocks have average R o values of 0.88 and 0.97%, respectively, with an average Rock-Eval T max value of 442 °C. Hydrocarbon generation of source rocks started at ∼205 Ma, with the highest rates at ∼170 Ma, reaching the maximum transformation ratio of 40−50% in the middle of the Early Cretaceous. The age and length of apatite fission tracks (AFTs) indicate that coal-bearing strata underwent significant postdepositional annealing after the Late Permian and suggest an abnormal thermal event that occurred in the Late Mesozoic. Meso-Cenozoic thermal event was mainly caused by the plutonic metamorphism of the Early Jurassic and magmatic thermal metamorphism of the Early Cretaceous, achieving a maximum paleotemperature of ∼140 °C. The magmatic thermal event resulted from the intensive post-orogenic extension of the Qinling-Dabie Orogenic Belt caused by the tectonic transition of the North and South China Plates. The present-day high geotemperature of Pingdingshan Coalfield is dominated by the horst structure caused by the regional extension of the basin-mountain system. The Cambrian limestone with a high thermal conductivity underlying coal measure collects deep heat, forming a heat accumulation center of this horst structure with a heat flow of 74 mW/m 2 and a maximum temperature of ∼50 °C nowadays.

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“…Peat beds and coal-bearing sequences could be eroded due to several reasons (e.g., flooding events and mass movements during peat formation or fluvial and marine influence after coalification) (Petersen et al, 1998;Lindsay and Herbert, 2002;Geršlová et al, 2016;Izart et al, 2016;Martínek et al, 2017;Bicca et al, 2020). As a result, coal clasts and/or coal-placers could be observed within the synchronous siliciclastic sediments and marine carbonates of coal seams and in modern marine sediments (Littke et al, 1989;Hower et al, 2001;Pešek and Sýkorová, 2006;Dill et al, 2017Dill et al, , 2021Zhang et al, 2019;Yang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Vitrinite reflectances and mineralogy of coal clasts in the Late Carboniferous sequences in the two-deep research wells from the Kozlu coalfield (Zonguldak Basin, NW Türkiye)

Karayi̇ǧi̇t

Oskay

2022

Bull.Min.Res.Exp.

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Fifty-four coal clast samples in the siliciclastic rocks (e.g., sandstone and conglomerate) were collected from cores of two-deep research wells (K20H and K20K) drilled at the Kozlu coalfield in Zonguldak Basin, and for the first time, they were evaluated using mineralogy by XRD and SEM-EDX and random vitrinite reflectance (%Rr) measurements in order to find out their origin and timing. Petrographic observations on polish surfaces show that the coal clasts are either entirely xylitic/vitrinitic particle or coals including a broader range of macerals. The detected minerals in the samples are mostly derived from the parental coal seams and, to lesser extent, precipitated from penetrated pore-water in the cleats/fractures of clasts. The %Rr values of coal clasts in Carboniferous sediments are generally relatively higher than measured in the coal seams due to weak oxidation during transportation. Furthermore, similar mineralogical and maceral compositions between coal clasts and coal seams imply that these clasts were mainly eroded during the peatification and/or early coalification of parental seams and display similar coalification patterns. The close %Rr value of a coal clast sample in the Early Aptian Zonguldak Formation and Carboniferous coal seams could suggest that this coal clast sample is presumably derived from the coal seams eroded during Early Aptian.

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Modelling of the thermal history of the Carboniferous Lorraine Coal Basin: Consequences for coal bed methane

Cited by 19 publications

References 65 publications

Structural Architecture and Permeability Patterns of Crystalline Reservoir Rocks in the Northern Upper Rhine Graben: Insights from Surface Analogues of the Odenwald

Structural Architecture and Permeability Patterns of Crystalline Reservoir Rocks in the Northern Upper Rhine Graben: Insights from Surface Analogues of the Odenwald

Thermal Evolution, Hydrocarbon Generation, and Heat Accumulation of a High Geothermal Coalfield: A Case Study of Pingdingshan Coalfield, China

Vitrinite reflectances and mineralogy of coal clasts in the Late Carboniferous sequences in the two-deep research wells from the Kozlu coalfield (Zonguldak Basin, NW Türkiye)

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