Geofluids

Nanoconfined Fluid Occurrence and Flow Behavior in Unconventional Gas/Oil Reservoirs


Publishing date
01 Aug 2022
Status
Closed
Submission deadline
08 Apr 2022

Lead Editor
Guest Editors

1China University of Petroleum at Beijing, Beijing, China

2Southwest Petroleum University, Chengdu, China

3China University of Petroleum (Beijing), Beijing, China

4University of Calgary, Calgary, Canada

This issue is now closed for submissions.

Nanoconfined Fluid Occurrence and Flow Behavior in Unconventional Gas/Oil Reservoirs

This issue is now closed for submissions.

Description

The development of unconventional gas/oil reservoirs has attracted a lot of attention across the academic and industry communities, particularly for shale gas/oil reservoirs, as well as coalbed methane (CBM), both of which possess abundant nanoscale pores. In addition, in compliance with the current knowledge, their exploitation complexity stems from the existence of nanoscale pores, leading to a great discrepancy in terms of fluid occurrence and flow behavior. From the microscopic viewpoint, fluid-solid interactions will gradually become prominent in affecting nanoconfined flow behavior, while it can be neglected for the pores in conventional reservoirs (micrometers or even larger).

To date, although massive research efforts have been performed to shed light on the nanoconfined behavior, some critical issues that are required to be further addressed remain unclear. For example, shale and low-rank coal reservoirs possess dual-wettability properties, while the wettability-induced control effect on the nanoconfined gas-water behaviors is still vague. Meanwhile, the unique properties, such as viscosity, critical parameters, and interfacial tension of the fluid at the nanoscale, are needed to be revisited and characterized accurately, as reported by a great deal of experimental and simulation evidence. Hydraulic fracturing is a commonly utilized approach to improve formation permeability, while microscopic investigation of fracturing fluid invasion or flowback process is still lacking. Accordingly, the successful development of unconventional reservoirs requires a clear understanding of nanoconfined fluid behavior, entailing additional in-depth investigations on the basis of previous contributions.

To bridge the knowledge gap, this Special Issue is dedicated to attracting high quality original research and reviews, focusing on the nanoconfined fluid occurrence and flow behaviors.

Potential topics include but are not limited to the following:

  • Nanoconfined fluid chemical and physical properties (viscosity, surface tension, wettability, etc.)
  • Adsorption/desorption of oil, gas, and water in unconventional rocks
  • Phase behavior in unconventional rocks
  • The nanoscale phenomenon occurred in CO2 geological sequestration and enhanced oil recovery (EOR) process
  • Single/multiphase transport within nanoporous media
  • Characterization and reconstruction of unconventional rocks
  • Novel method or technology to enhance nanoconfined flow capacity
  • Simulation methods (LBM, PNM, MD, etc.) for modeling fluid behaviors in unconventional rocks
  • Novel experimental and numerical modeling methods for fluid transport in unconventional porous media
  • Evaluation of macroscopic parameters of unconventional rock (permeability, relative permeability, capillary, etc.)
  • Machine learning and data-driven science applications for the microscopic phenomenon in unconventional reservoirs
  • Upscaling methods of nanoscale dynamical process

Articles

  • Special Issue
  • - Volume 2022
  • - Article ID 2197001
  • - Research Article

Numerical Simulation of Choke Size Optimization in a Shale Gas Well

Jianfa Wu | Xuefeng Yang | ... | Deliang Zhang
  • Special Issue
  • - Volume 2022
  • - Article ID 5993701
  • - Research Article

Transient Pressure Behavior of a Horizontal Well in a Naturally Fractured Gas Reservoir with Dual-Permeability Flow and Stress Sensitivity Effect

Guiqin Wang | Rui Zhang | Liangliang Cui
  • Special Issue
  • - Volume 2022
  • - Article ID 4358328
  • - Research Article

Effect of Pore Geometry on Nanoconfined Bulk-Gas Flow Behavior

Yi Zhang
  • Special Issue
  • - Volume 2022
  • - Article ID 9944867
  • - Research Article

Nanoconfined Bulk-Gas Transport Behavior over a Wide Range of Knudsen Number

Yi Zhang
  • Special Issue
  • - Volume 2022
  • - Article ID 8706365
  • - Research Article

Numerical Simulation of Seepage-Heat-Solid Coupling of Gas Seepage in Prepumped Boreholes under Electrothermal High Temperature Field

Xionggang Xie | Jin Yang | ... | Jianjun Ren
  • Special Issue
  • - Volume 2022
  • - Article ID 1263893
  • - Research Article

Structural Formation, Evolution, and Genetic Mechanisms of Fault in Controlling Hydrocarbon Migration of Unconventional Rocks: A Case Study of Zhuangnan Fault

Jing Wang | Yongwei Guo | ... | Huili Chu
  • Special Issue
  • - Volume 2022
  • - Article ID 9539999
  • - Research Article

Preparation of Oil-Based Foam Gel with Nano-SiO2 as Foam Stabilizer and Evaluation of Its Performance as a Plugging Agent for Fractured Shale

Daqi Li | Fan Li | ... | Shuo Yang
  • Special Issue
  • - Volume 2022
  • - Article ID 7151851
  • - Research Article

Mechanism of Coal Seam Permeability Enhancement and Gas Outburst Prevention under Hydraulic Fracturing Technology

Xinhua Wu | Tao Zhu | ... | Fengnian Wang
  • Special Issue
  • - Volume 2022
  • - Article ID 8318819
  • - Research Article

Characteristics and Research Direction of Triassic in the South Yellow Sea Basin, China

Kong Weijun | Su Shuzhen | ... | Chen Qinghua
  • Special Issue
  • - Volume 2022
  • - Article ID 3910586
  • - Research Article

Characteristics of Middle-Lower Ordovician Ultradeeply Buried Carbonate Reservoirs in Shunbei Area, Tarim Basin—A Case Study from Well SHBP1

Xiao Chongyang | Zhao Rui | ... | Lin bo
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