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Deep Sandstone Reservoirs Characterization
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Deep Sandstone Reservoirs Characterization

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Exploration Methods and Applications".

Deadline for manuscript submissions: 20 May 2025 | Viewed by 582

Special Issue Editors

Dr. Xianguo Zhang

E-Mail Website
Guest Editor
School of Geosciences, China University of Petroleum (East China), Qingdao 266580, China
Interests: reservoir geology; seismic sedimentology; tight reservoir prediction; remaining oil prediction; reservoir architecture
Special Issues, Collections and Topics in MDPI journals
Dr. Aleem Zahid

E-Mail Website
Guest Editor
Faculty of Marine Sciences, Lasbela University, Balochistan 90250, Pakistan
Interests: sedimentology; reservoir characterization
Dr. Hui Xu

E-Mail Website
Guest Editor
School of Petroleum and Natural Gas Engineering, Changzhou University, Changzhou 213164, China
Interests: pore structure description; remaining oil distribution prediction

Special Issue Information

Dear Colleagues,

Deep layers are one of the main areas for future oil and gas exploration and development. Compared with shallow layers, deep sandstones undergo complex geochemical processes, stronger diagenetic processes and multi-period structural processes, and reservoirs have stronger heterogeneity and complex genesis mechanisms. Meanwhile, the quality of deep seismic data is low and drilling data are scarce, requiring new reservoir characterization methods and technologies. Through precise characterization, we can understand reservoir types, microscopic pore structures, mineral diagenesis and its physical/geochemical processes, fractures, mineral deposition and its evolution, sand body distribution, and the porosity and permeability distribution laws of deep sandstone. This characterization can also reveal the formation mechanism and control factors of deep "sweet spot" reservoirs and predict reservoir quality and distribution. This Special Issue provides a platform for exchanging theories, technologies, and application examples in the systematic study for deep sandstone reservoirs, including reservoir geological research, geological modeling, logging interpretation, seismic prediction methods, etc. Papers must be within the scope of the journal Minerals and should thus include a consideration of the mineral composition of the reservoir rocks.

Dr. Xianguo Zhang
Dr. Aleem Zahid
Dr. Hui Xu
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

  • reservoir architecture
  • deep reservoir
  • tight sandstone
  • sedimentary facies
  • diagenesis facies
  • digital core
  • reservoir modeling
  • reservoir evaluation

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Published Papers (1 paper)

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Research

17 pages, 11698 KiB  
Article
Diagenesis and Hydrocarbon Charging History of the Late Triassic Yanchang Formation, Ordos Basin, North China
by Hua Tao, Junping Cui, Hao Liu, Fanfan Zhao and Shihao Su
Minerals 2024, 14(12), 1265; https://doi.org/10.3390/min14121265 (registering DOI) - 12 Dec 2024
Viewed by 350
Abstract
The Yanchang Formation of the Triassic in the Ordos Basin comprises various stratigraphic intervals. The Chang 8 reservoir represents a significant oil-producing section of the Yanchang Formation, and its hydrocarbon accumulation mechanism is complex. In this study, we analyzed the diagenetic evolution and [...] Read more.
The Yanchang Formation of the Triassic in the Ordos Basin comprises various stratigraphic intervals. The Chang 8 reservoir represents a significant oil-producing section of the Yanchang Formation, and its hydrocarbon accumulation mechanism is complex. In this study, we analyzed the diagenetic evolution and reservoir-forming stages of the Chang 8 member of the Yanchang Formation in the Late Triassic in the Fuxian area, the southern Ordos Basin, via thin-section casting, scanning electron microscopy (SEM), X-ray diffraction, and fluid inclusion petrology and homogenization temperature analyses. The relationship between the petrogenesis and hydrocarbon charging history was analyzed, which provided guidance for identifying and predicting the hydrocarbon reservoir distribution. The results show that the main diagenesis types of the Chang 8 reservoir are compaction, cementation, dissolution, and metasomatism. The comprehensive analysis of the reservoir mineral types, diagenesis, diagenetic sequence, and thermal evolution degree of organic matter shows that the Chang 8 reservoir of the Yanchang Formation is in the A stage of the middle diagenesis stage. Under the overpressure of hydrocarbon generation, oil and gas migrated into the Chang 8 reservoir along fractures and connected pores. The earlier-stage hydrocarbon charging occurred after compaction and later than the early clay film formation and early calcite precipitation, and it also occurred earlier than or simultaneously with the quartz overgrowth. The later hydrocarbon charging occurred after the significant quartz overgrowth and late calcite pore filling. Depending on the homogenization temperature and salinity, the fluid inclusions can be divided into two types: low-temperature, low-salt (90–105 °C, 1.4%–11.2%) fluid inclusions and high-temperature, high-salt (115–120 °C, 2.2%–12.5%) fluid inclusions. According to the analysis of the evolution of the burial history, hydrocarbon charging in the Chang 8 reservoir of the Yanchang Formation in the Fuxian area occurred in two consecutive periods: 133~126 Ma and 122~119 Ma, demonstrating one-scene, two-stage reservoir formation, characterized by simultaneous reservoir densification and hydrocarbon charging. In this research, we precisely ascertained the regional diagenetic characteristics and patterns and periods of hydrocarbon charging, thereby furnishing crucial evidence that deepens the comprehension of sedimentary basin evolution. Full article
(This article belongs to the Special Issue Deep Sandstone Reservoirs Characterization)
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