Geofluids

Diagenetic Fluid Evolution and Reservoir Response in Fine-Grained Sedimentary Rocks


Publishing date
01 Apr 2022
Status
Closed
Submission deadline
26 Nov 2021

Lead Editor

1China University of Petroleum, Qingdao, China

2China University of Petroleum, Dongying, China

3University of Texas Arlington, Arlington, USA

4Shandong University of Science and Technology, Qingdao, China

5China University of Geosciences, Wuhan, China

This issue is now closed for submissions.
More articles will be published in the near future.

Diagenetic Fluid Evolution and Reservoir Response in Fine-Grained Sedimentary Rocks

This issue is now closed for submissions.
More articles will be published in the near future.

Description

Fine-grained sedimentary rocks (FGSRs) consist of sediments with grain sizes <62.5 μm. They account for approximately 70% of the total sediments in nature. These rocks are becoming a popular research topic largely due to the increase of unconventional petroleum exploration. Organic-rich FGSRs are important hydrocarbon source rocks in conventional petroleum systems. These rocks can also become reservoirs for shale oil and gas resources. FGSRs are composed of complex lithologies including clay, quartz, carbonates, feldspars, sulfides, biogenic debris (aragonite, opal, and magnesium calcite) and organic matter (OM). They are typically characterized by complex diagenesis, evolution, and fluid-rock interactions. Micro-nano pores generated during diagenesis become important storage spaces and channels for hydrocarbon migration and accumulation. Therefore, the evolution of the diagenetic fluids and associated reservoir responses are key factors controlling the formation of sweet spots in shale oil and gas.

With the rapid development of the shale oil and gas industry, there are several fundamental issues regarding FGSRs that are worth further investigation. Firstly, further studies should be conducted discussing the sources and evolution of the diagenetic fluids associated with complex lithofacies, diagenetic stages, temperature, pressure, etc. Secondly, there need to be further investigations regarding the physical, chemical, and biological processes involved in the diagenesis of FGSRs. Thirdly, studies should investigate the diagenetic path, mass balance, diagenetic fluid transport, and exchange, and organic–inorganic interactions within FGSRs. Finally, there is a need to research the co-evolution of the diagenesis of FGSRs with the thermal evolution of OM, the formation of reservoirs, and their effects on the petrophysical characteristics of reservoirs and hydrocarbon generation, expulsion, and accumulation.

This Special Issue aims to bring together original research and review articles discussing the source and characteristics of diagenetic fluids. Submissions discussing fluid-rock interaction and reservoir response of diagenetic fluids in FGSRs from different basins, sedimentary settings (from marine to lacustrine shales), and geological ages (from Precambrian to Cenozoic) are encouraged. Discussions on the limitations of current models and methods or suggestions for future research on FGSRs are also welcome.

Potential topics include but are not limited to the following:

  • Diagenetic fluid types, characteristics, and sources in FGSRs
  • Paleo-geofluids in FGSRs
  • Diagenetic fluid evolution process in FGSRs
  • Diagenetic fluid organic-inorganic interactions in FGSRs
  • Hydrocarbons and inorganic fluid occurrence in FGSRs
  • Modelling the interaction of fluids and rocks in FGSRs
  • Mechanisms of hydrocarbon generation, diagenesis, and pore formation in shales
  • Shale reservoir heterogeneity

Articles

  • Special Issue
  • - Volume 2022
  • - Article ID 3633047
  • - Review Article

Occurrence, Genesis, and Significance of Analcime in Fine-Grained Sedimentary Rocks

Junran Wang | Chao Liang | ... | Yu Tian
  • Special Issue
  • - Volume 2022
  • - Article ID 1544872
  • - Research Article

Fluid Charging and Gas Reservoir Pressure Evolution of Longmaxi Formation Shale in Southeastern Chongqing

Cen Chen | Cheng Meng | ... | Pengjing Xu
  • Special Issue
  • - Volume 2022
  • - Article ID 9019061
  • - Research Article

Multielement Imaging Reveals the Diagenetic Features and Varied Water Redox Conditions of a Lacustrine Dolomite Nodule

Yuke Liu | Wenyuan He | ... | Shuichang Zhang
  • Special Issue
  • - Volume 2022
  • - Article ID 3156547
  • - Research Article

Pore Structures of the Lower Permian Taiyuan Shale and Limestone in the Ordos Basin and the Significance to Unconventional Natural Gas Generation and Storage

L. Zhang | Q. Zhao | ... | S. Zhou
  • Special Issue
  • - Volume 2021
  • - Article ID 5371021
  • - Research Article

Controls of Deep-Seated Faults and Folds on Hydrocarbon Fluid Migration and Accumulation in Sedimentary Basins: A Case Study from the Northwestern Sichuan Basin, China

Xi Wang | Yin Liu | ... | Hongbin Kang
  • Special Issue
  • - Volume 2021
  • - Article ID 9373948
  • - Research Article

Reservoir Characteristics of the Lower Permian Marine-Continental Transitional Shales: Example from the Shanxi Formation and Taiyuan Formation in the Ordos Basin

H. Wang | L. Zhang | ... | D. Dong
  • Special Issue
  • - Volume 2021
  • - Article ID 1416303
  • - Research Article

Quantitative Characterization for the Micronanopore Structures of Terrestrial Shales with Different Lithofacies Types: A Case Study of the Jurassic Lianggaoshan Formation in the Southeastern Sichuan Basin of the Yangtze Region

Weiwei Liu | Kun Zhang | ... | Chen Zhang
  • Special Issue
  • - Volume 2021
  • - Article ID 5206381
  • - Research Article

Revisiting Controls on Shale Oil Accumulation in Saline Lacustrine Basins: The Permian Lucaogou Formation Mixed Rocks, Junggar Basin

Chenjia Zhang | Jian Cao | ... | Yang Qin
  • Special Issue
  • - Volume 2021
  • - Article ID 8728005
  • - Research Article

Coalbed Methane Potential Evaluation and Development Sweet Spot Prediction Based on the Analysis of Development Geological Conditions in Yangjiapo Block, Eastern Ordos Basin, China

Xinyu Fu | Yanjun Meng | ... | Yanfei Liu
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