Base metal mobility linked to brine and hydrocarbon migration at the Huincul High in the Neuquén Basin, Argentina: Implications for the formation of sediment-hosted base metal deposits

Pons, María Josefina; Franchini, Marta; Rainoldi, Ana L.; Giusiano, Adolfo; Cesaretti, Nora N.; Montagna, Aldo O.; Herrington, Richard

doi:10.1016/j.gexplo.2021.106778

Cited by 6 publications

(5 citation statements)

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“…The gas storage in the pore space of the sediments has been recognized by many scholars in China, and related research has been carried out (Li et al, 2021a;Li et al, 2021b;Chuvilin et al, 2021;Li et al, 2022c;Alms et al, 2023). Referential studies indicated that most of the brine in the pore space of sediments can be discharged but not all of it (Pons et al, 2021;Yuan et al, 2023). Currently, it is deemed feasible to establish a brine discharge channel by incorporating a directional well to connect the cavern's bottom with the surface of the ground (Marbun et al, 2021).…”

Section: Gas Storage Capacitymentioning

confidence: 99%

Feasibility assessment of solution mining and gas storage in salt caverns: a case study of the Sanshui salt mine

Yi,

Li,

Zhao

et al. 2023

Front. Energy Res.

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The Sanshui salt mine is the sole location in the Guangdong province of South China with the potential to construct a salt cavern gas storage (SCGS) facility. Nevertheless, the gas storage construction of this mine faces significant challenges due to the presence of low‒grade salt deposits and numerous interlayers. To demonstrate the feasibility and calculate the gas storage capacity in this specific mining area, two representative salt caverns within this salt mine were simulated using a self-developed cavern-building simulation program, enabling us to accurately determine their respective volumes and shapes. Herein, the findings indicate that the combined caverns possess a total mining space volume of 1,157,000 m3, with the brine space accounting for merely 291,800 m3 (representing 25.22% of the overall mining space), and an extensive sedimentary volume of 865,200 m3 is also observed (constituting approximately 74.78% of the total mining capacity). Fortunately, this study has revealed that the sediments exhibit a porosity exceeding 40% and possess favorable permeability; consequently, countermeasures have been proposed to enhance the gas storage capacity within the pore space of these caverns, and we also utilized FLAC3D software for numerical simulation calculations to compare the stability of the cavern under different conditions of sediment pore utilization by calculating the volume loss rate, cavern wall displacement deformation, and plastic zone distribution. Moreover, the proposed method is anticipated to double the caverns’ working gas volume, increasing it from 40 million m3 to nearly 80 million m3. On the other hand, the long-term stability of caverns is numerically assessed under different pore space utilization rates of the sediments. The results also indicate that the caverns’ volume shrinkage, plastic zones, and surrounding rock displacement remain within allowable limits during 30 years of gas storage operation. The primary problem in the subsequent phase lies in effectively achieving gas injection and brine removal from the pore space of sediments while devising a methodology to extend this method to other salt caverns within similar salt mine areas. Thus, this study provides theoretical and technical guidance for the establishment of gas storage in existing salt caverns in the Sanshui salt mine and in salt mines worldwide that share similar geological conditions.

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Section: Gas Storage Capacitymentioning

confidence: 99%

Feasibility assessment of solution mining and gas storage in salt caverns: a case study of the Sanshui salt mine

Yi,

Li,

Zhao

et al. 2023

Front. Energy Res.

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“…A similar replacement mechanism of pyrite by chalcopyrite and sphalerite has occurred in the hydrothermal barite + sulphide veins in the Yesnaby Sandstone Fm (Figure 3D). There are several examples at the White Pine mine, some Chilean Manto-type deposits, and in the Neuquen Basin of hydrocarbons which acted as the primary reductant to facilitate Cu-mineralisation from the hydrothermal brines [7,9,11,53,54], which is also likely to have occurred at Yesnaby.…”

Section: Copper-barite-sphalerite Mineralsmentioning

confidence: 99%

Copper, Uranium and REE Mineralisation in an Exhumed Oil Reservoir, Southwest Orkney, Scotland

et al. 2023

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Copper, uranium, and rare earth element (REE) mineralisation occurs in hydrocarbon-bearing Devonian continental sandstones in southwest Orkney, Scotland. The aeolian Yesnaby Sandstone Formation and fluvial Harra Ebb Sandstone Formation were mineralised following oil emplacement. The REE-bearing APS mineral florencite is particularly associated with bituminous nodules, many of which contain brannerite. Subsequently hydrothermal copper and other sulphides, and barite, further mineralised the oil reservoir at a temperature of ~190 °C. Oil was mobilised through mineralised fractures at this stage. Biodegradation of the oil occurred later, following the Carboniferous-Permian uplift. The occurrence confirms that Cu-APS mineralisation is possible in relatively low-temperature regimes in sedimentary basins.

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“…Sedimentary basin is a huge complex system in which a variety of organic and inorganic, metallic and nonmetallic mineral resources and water resources coexist [1]. As the phenomenon of close paragenesis or associated occurrence between metal deposits and hydrocarbon organic matter has been discovered [2][3][4][5][6][7][8][9][10][11][12], the relationship between metal mineralization and hydrocarbon accumulation has attracted more and more attention of mineral deposit scholars, and the study of organic-inorganic interaction and mineralization effect in sedimentary basins has been aroused [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

TSR Action and Genesis Mechanism of Antimony Deposit: Evidence From Aromatic Hydrocarbon Geochemistry of Bitumen in Paleo-Oil Reservoir Near Qinglong Ore Field, Southwestern Guizhou Depression, China

Yang¹,

Hu²,

Sai-hua³

et al. 2022

Preprint

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In Qinglong ore field, paleo-oil reservoir is found to be associated with antimony deposits, and they have close genetic relationship. In this study, aromatics geochemistry of paleo-oil reservoir bitumen was studied to further discuss the thermochemical sulfate reduction (TSR) reaction and the mechanism of antimony mineralization. A total of 124 aromatic compounds were identified by Gas chromatography-mass spectrometry (GC–MS) analysis in bitumen samples, including abundant phenanthrene series, dibenzothiophene series, fluoranthene series, chrysene series, and a small number of fluorene series, naphthalene series, dibenzofuran series, biphenyl series, triaromatic steroid series. Aromatic parameters such as trimethylnaphthalene index (TMNr), methylphenanthrene index (MPI), methylphenanthrene distribution fraction (MPDF, F1 and F2), methyldibenzothiophene parameter (MDR), C28TAS-20S/(20R+20S), and benzofluoranthene/benzo[e]pyrene indicate Qinglong paleo-oil reservoir is in over maturity level. The abundance of phenanthrene and chrysene aromatic compounds and a small amount of naphthalene series, benzofluoranthene, fluoranthene, pyrene, anthracene, retene, perylene and biphenyl suggest that the parent material of the paleo-oil reservoir was mainly low aquatic organisms, mixed with a small amount of higher plant. The detected a certain number of compounds, such as retene, triaromatic steroid series and perylene, the ternary diagram of DBF–DBT–F and binary plot of Pr/Ph–DBT/P, DBT/(F+DBT)–DBF/(F+DBF) and Pr/Ph–DBT/DBF reveal that the source rock of the paleo-oil reservoir was formed in the marine environment of weak oxidation and weak reduction. The comprehensive analysis shows that the Qinglong paleo-oil reservoir originated from Devonian source rocks, just like other paleo-oil reservoirs and natural gas reservoirs in the Nanpanjiang basin. Abundant dibenzothiophene series were detected, indicating that the paleo-oil reservoir underwent a certain degree of TSR reaction. We believe that the paleo-gas reservoir formed by the evolution of paleo-oil reservoir participated in antimony mineralization, that is, hydrocarbon organic matter acted as reducing agent and transformed SO42− in oilfield brine into H2S through TSR, providing reduced sulfur and creating environmental conditions for mineralization.

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Base metal mobility linked to brine and hydrocarbon migration at the Huincul High in the Neuquén Basin, Argentina: Implications for the formation of sediment-hosted base metal deposits

Cited by 6 publications

References 50 publications

Feasibility assessment of solution mining and gas storage in salt caverns: a case study of the Sanshui salt mine

Feasibility assessment of solution mining and gas storage in salt caverns: a case study of the Sanshui salt mine

Copper, Uranium and REE Mineralisation in an Exhumed Oil Reservoir, Southwest Orkney, Scotland

TSR Action and Genesis Mechanism of Antimony Deposit: Evidence From Aromatic Hydrocarbon Geochemistry of Bitumen in Paleo-Oil Reservoir Near Qinglong Ore Field, Southwestern Guizhou Depression, China

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