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Special Issue "Advances in Fluid Inclusions and Geofluids"

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1. State Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Institute of Geofluids, Nanjing University, Nanjing 210023, China
2. Joint Research Center for Circum-Pacific Strategic Mineral Resources, Nanjing 210000, China
Interests: hydrothermal ore deposits; mineral, fluid and melt inclusion; mineral resource prospecting and exploration; tectonics and metallogeny
Special Issues, Collections and Topics in MDPI journals

Prof. Dr. Chengyou Feng

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Institute of Exploration Techniques, Chinese Academy of Geological Sciences, Langfang 065000, China
Interests: hydrothermal ore deposits; fluid inclusion; Regional metallogenic regularity; mineral resource evaluation

Prof. Dr. Feiyu Wang

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1. School of Earth Sciences, China University of Petroleum (Beijing), Beijing 102200, China
2. State Key Laboratory of Oil and Gas Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102200, China
Interests: petroleum geology and geochemistry; petroleum system analysis; fluid inclusions

Prof. Dr. Xuanlong Shan

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Guest Editor

1. College of Earth Science, Jilin University, Changchun 130061, China
2. Northeast Asian Research Center of Jilin University, Changchun 130061, China
3. Jilin University Museum of Geology, Changchun 130061, China
Interests: unconventional oil and gas exploration and development; marine geology; geothermal geology and exploration

Special Issue Information

Dear Colleagues,

Geofluids plays a very important role in the transmission and exchange of materials and energy, mineralization and oil/gas formation, and climate and environmental changes, and is one of the most important frontiers of geoscience research . Fluid and melt inclusions are the only specimens of geological fluids preserved in nature, and they are irreplaceable in the study of geological fluids.

This Special Issue, entitled "Advances in Fluid Inclusions and Geofluids", will mainly reflect the latest research presented at the 21st biennial national conference of "Fluid Inclusions and Geofluids" (Oct, Guilin, China), and also welcomes manuscripts with the same theme from around the world. The contents of this Special Issue include fluid inclusion and geofluids research in hydrothermal metallogenic systems, oil and gas reservoir forming systems, the epigenetic process (salt), the magmatic process, the metamorphic process, synthetic inclusions, and the P-V-T-X properties of geofluids, etc.

We hope that the publication of this Special Issue will provide examples in many related geological fields, present new methods and ideas , and promote research into fluid inclusions and Geofluids

Prof. Dr. Pei Ni
Prof. Dr. Chengyou Feng
Prof. Dr. Feiyu Wang
Prof. Dr. Xuanlong Shan
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Minerals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

fluid inclusion and geofluids
hydrothermal metallogenic system
oil and gas reservoir forming system
epigenetic process (salt)
magmatic process
metamorphic process
synthetic inclusions
P-V-T-X properties of geofluids

Published Papers (2 papers)

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Research

Open AccessArticle

Genesis and Geological Significance of Permian Oilfield Water in the Western Periphery of the Mahu Sag, Junggar Basin, China

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Minerals 2023, 13(8), 1043; https://doi.org/10.3390/min13081043 - 06 Aug 2023

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Abstract

Oilfield water contains valuable geological information and plays an important role in petroliferous basins, being closely related to diagenesis, reservoir physical properties, and hydrocarbon preservation conditions. Here we present a case study of oilfield water in Permian formations in the western periphery of the Mahu Sag, Junggar Basin, China. The genesis of oilfield water and its application in oil exploration were investigated through the coupling of tectonic activity, paleoclimate, and water–rock interaction. Volcanic activity provided a rich source of ions, and a hot paleoclimate intensifies the evaporation and concentration of sedimentary water. Tectonic fractures offered channels for water exchange among formations. Water–rock reactions, marked by sodic feldspathization and calcium feldspar dissolution, had profound effects on the oilfield water type and reservoir properties. We established a link between oilfield water and favorable targets for oil exploration. In terms of vertical trends, the Jiamuhe and Upper and Lower Urho formations have strong sealing abilities for hydrocarbon preservation. In the horizontal dimension, areas with high total-dissolved-solid and CaCl₂ concentrations, low r_Na/r_Cl, r_SO₄ × 100/r_Cl, (r_HCO₃+CO₃)/r_Ca, and r_Mg/r_Ca ratios are favorable for oil exploration. Full article

(This article belongs to the Special Issue Advances in Fluid Inclusions and Geofluids)

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Pressure Evolution Mechanism of Marine Shale Reservoirs and Shale Gas Accumulation Model: Evidence from Fluid Inclusions in the Wufeng–Longmaxi Formation in the Basin Margin Structural Transition Zone in Northern Guizhou Province, China

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Minerals 2023, 13(2), 241; https://doi.org/10.3390/min13020241 - 08 Feb 2023

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Abstract

The Wufeng–Longmaxi Formation in northern Guizhou Province is the dominant shale gas exploration and development strata in China. This study investigates the Shixi and Daozhen synclines, which are located in the basin margin transition zone. This region experienced complex tectonic stages and superimposed transformations, resulting in heterogeneous preservation conditions and shale reservoir pressure evolution in different tectonic units of the Wufeng–Longmaxi Formation. Based on fluid inclusion analysis, the types of fluid inclusion and the fluid filling stages of the Wufeng–Longmaxi shale reservoir were determined by laser Raman analysis and homogenization temperature and salinity tests. It was found that the fluid inclusion density and paleopressure in each filling stage were then restored. The results confirm that: ① Both the Shixi syncline and Daozhen syncline Wufeng–Longmaxi shale reservoirs experienced two fluid filling phases, in the early Yanshanian and late Yanshanian–Himalayan, respectively. In the course of tectonic evolution, the Wufeng–Longmaxi Formation in the Shixi and Daozhen synclines experienced pressure relief to some extent during the two aforementioned key fluid charging periods but remained in overpressurized states overall; ② The Wufeng–Longmaxi Formations of the Shixi and Daozhen synclines are characterized by high-density methane inclusions; ③ Based on the differences in the structural preservation conditions, the pressure evolution mechanisms of the Wufeng–Longmaxi Formation Shales during the important tectonic evolution period in northern Guizhou Province were revealed. Furthermore, differential enrichment and accumulation models of shale gas were established and named “facing thrust structural sealing type (Shixi syncline)” and “reverse fault lateral blocking type (Daozhen syncline)”. Full article

(This article belongs to the Special Issue Advances in Fluid Inclusions and Geofluids)

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