Geofluids

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


Publishing date
01 Aug 2022
Status
Published
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


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

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 2224321
  • - Research Article

Adaptability Study of Hot Water Chemical Flooding in Offshore Heavy Oilfields

Zenghua Zhang | Yi Jin | ... | Peihuan Li
  • Special Issue
  • - Volume 2022
  • - Article ID 6399148
  • - Research Article

Evaluation of Reservoir Parameters and Well Productivity Based on Production Data: A Field Case in Xinjiang Oilfield, China

Rui Chen | Qiao Guo | ... | Yang Wang
  • Special Issue
  • - Volume 2022
  • - Article ID 1293143
  • - Research Article

A Geocoupling Simulation Method for Fractured Reservoir Production

Xin Li | Zhengdong Lei | ... | Yuanqing Zhang
  • Special Issue
  • - Volume 2022
  • - Article ID 9420835
  • - Research Article

Characterization Method of Tight Sandstone Reservoir Heterogeneity and Tight Gas Accumulation Mechanism, Jurassic Formation, Sichuan Basin, China

Lin Jiang | Wen Zhao | ... | Jiaqing Hao
  • Special Issue
  • - Volume 2022
  • - Article ID 4145219
  • - Research Article

Prediction of the Control Effect of Fractured Leakage in Unconventional Reservoirs Using Machine Learning Method

Lei Pu | Jianjian Song | ... | Shanshan Zhou
  • Special Issue
  • - Volume 2022
  • - Article ID 5237534
  • - Research Article

Influence of Compositional Gradient Effect on Tight Condensate Gas Reservoir Development

Jing Chen | Xinmin Song | ... | Jinfang Wang
  • Special Issue
  • - Volume 2022
  • - Article ID 1748605
  • - Review Article

Review of the Generation of Fractures and Change of Permeability due to Water-Shale Interaction in Shales

Kerui Liu | Dangliang Wang | ... | Jianfeng Li
  • Special Issue
  • - Volume 2022
  • - Article ID 1549003
  • - Research Article

Nanoconfined Gas Flow Behavior in Organic Shale: Wettability Effect

Shan Wu | Xiaorui Wang | ... | Ran Mao
  • Special Issue
  • - Volume 2022
  • - Article ID 2339395
  • - Research Article

Effect Evaluation of Nanosilica Particles on O/W Emulsion Properties

Guanzheng Qu | Jian Su | ... | Jiao Peng
  • Special Issue
  • - Volume 2022
  • - Article ID 4488032
  • - Research Article

Sedimentary Characteristics and Evolution Controlling Factors of Platform Margin Reef-Shoal: A Case Study of Upper Carboniferous-Middle Permian in Wushi Area, Tarim Basin

Ke Sun | Huixi Lin | ... | Jibiao Zhang
Geofluids
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Acceptance rate24%
Submission to final decision146 days
Acceptance to publication27 days
CiteScore2.300
Journal Citation Indicator0.600
Impact Factor1.7
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