Shale Wettability: Data Sets, Challenges, and Outlook

Arif, Muhammad; Zhang, Yihuai; Iglauer, Stefan

doi:10.1021/acs.energyfuels.0c04120

Cited by 97 publications

(42 citation statements)

References 138 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wettability is defined as the attraction of a liquid phase to solid surface and is typically quantified using a contact angle with the solid phase. It is the ability of a liquid to maintain contact with a solid surface and is controlled by the balance between the intermolecular interactions of the adhesive type (liquid to surface) and cohesive type (liquid to liquid). , They concluded that shales are water-wet at in situ conditions. Nikolaev and Kazak reviewed experimental methods, including nuclear magnetic resonance (NMR) and Rock-Eval pyrolysis, to characterize oil and water saturation in organic-rich unconventional reservoirs .…”

Section: Introductionmentioning

confidence: 99%

Laboratory Characterization of Shale Oil Storage Behavior: A Comprehensive Review

Pan

Liu

et al. 2021

Energy Fuels

View full text Add to dashboard Cite

Shale oil has become an important oil resource over the past decade. The oil storage behavior, including the adsorbed oil and free oil, is one of the most important controlling factors for shale oil production. Because the shale oil storage behavior is largely determined by the fluid and solid interactions, this review first evaluates the shale mineralogy, pore structure, and oil properties. Then, the experimental methods to characterize the free oil and adsorbed oil are reviewed. The relationship between the oil storage behavior and shale and oil properties are then discussed. It is concluded from the literature work that the organic matter has the highest adsorption capacity for oil, followed by clay minerals, quartz, and calcite. While it is well-known that heavier oil components are adsorbed more than the lighter components, a relationship between the ratio of pore size to oil molecular size and the ratio of free oil to adsorbed oil is suggested and plotted. Finally, it is found from the literature that accurate experimental methods and theoretical models on free oil and adsorbed oil characterization are still missing; therefore, these topics require attention in future researches on shale oil.

show abstract

Section: Introductionmentioning

confidence: 99%

Laboratory Characterization of Shale Oil Storage Behavior: A Comprehensive Review

Pan

Liu

et al. 2021

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…Preheating of the air and fuel is carried out in particular power plants to achieve this goal [22] [23]. Preheating the air may be accomplished by using renewable energy sources, which will be more ecologically friendly and long-lasting [24] [25]. A gas turbine connected with an air preheating solar field was modeled using TRNSYS and Thermoflex to simulate the system's performance.…”

Section: Discussionmentioning

confidence: 99%

Solar Preheating in Power Plants: An Overview Of The Current State Of The Technology

Chen

zhuang

2021

ijasca

View full text Add to dashboard Cite

Utilizing preheating units is one of the most critical ways to improve the performance of thermal power plants. Increasing the overall efficiency of Brayton or Rankine cycles by preheating the air or stream may result in considerable increases in output power and efficiency. When it comes to renewable energy, solar energy is an appealing alternative for use as a source of preheating since it is readily accessible. The current article discusses the use of solar energy for preheating air and steam in thermal power plants, as well as other uses. The performance of the systems is being improved, according to evaluations, as a result of a variety of elements, including the configuration of the reference system, the operating environment, the applied technology, and so on. Aside from improving the overall efficiency of the power plant, the incorporation of a solar preheating system may significantly decrease fuel usage and, as a result, carbon dioxide emissions. Furthermore, owing to the unavailability of solar energy during the night and overcast hours, thermal storage units may improve the system's dependability while also increasing the contribution of solar energy to the system's output.

show abstract

“…Although numerous researches have been done on the pore structure, interphase interaction, and flow mechanisms in macroscale [22][23][24][25][26], mathematical models capable of accurately characterizing the pore deformation, dynamic capillary force phenomenon, and oil-water two-phase transport at the nanopore scale for shale oil are still missing [27][28][29][30][31]. To solve this problem, Gassmann's method is modified to describe the change of pore radius and roughness in the dynamic pressure field for elastic deformation.…”

Section: Introductionmentioning

confidence: 99%

Study on Two-phase Flow Mechanisms in Nanopore Considering Microcosmic Deformation and Dynamic Capillary Force

et al. 2022

View full text Add to dashboard Cite

Coring experiments show that nanopores are extensively distributed in shale oil reservoirs and tend to be deformed when a significant pressure variation exists, and thus the dynamic capillary force phenomenon and flow mechanisms in nanopores can be significantly changed. To characterize the two-phase flow mechanisms in nanopores influenced by the synergistic effect of microcosmic pore deformation and dynamic capillary force, models based on Gassmann’s theory are established to describe the variations of pore radius and roughness in a dynamic pressure field. And then, innovative methods to quantify the dynamic capillary force phenomenon under comprehensive influence of pore size, roughness, and pressure are developed. Meanwhile, mathematical models, considering the effect of the pore deformation and dynamic capillary force, are furtherly derived to characterize the water-oil two-phase flow behavior for relatively large nanopores in shale oil reservoir, which can be used to investigate the influence of the vital parameters. The results indicate that the dynamic capillary force phenomenon turns out to be more significant when variations of pore structure and pressure are considered simultaneously. Moreover, the pore deformation and dynamic capillary force caused by pressure change can exert remarkable synergistic influence on the transport capacity for typical flow modes. Bulk modulus is one of the key factors to determine the degree of influence. An optimal pressure can be obtained to coordinate the competitive effect of seepage channel and capillary force for water-drive-oil mode with limited driving force. Based on that, emphasis should be placed on pressure control during the shale oil development process. This work theoretically underpins the quantitative characterization and the analysis of two-phase flow in shale reservoirs at the nanopore scale.

show abstract

Shale Wettability: Data Sets, Challenges, and Outlook

Cited by 97 publications

References 138 publications

Laboratory Characterization of Shale Oil Storage Behavior: A Comprehensive Review

Laboratory Characterization of Shale Oil Storage Behavior: A Comprehensive Review

Solar Preheating in Power Plants: An Overview Of The Current State Of The Technology

Study on Two-phase Flow Mechanisms in Nanopore Considering Microcosmic Deformation and Dynamic Capillary Force

Contact Info

Product

Resources

About