Experimental investigations of fracturing fluid flowback and retention under forced imbibition in fossil hydrogen energy development of tight oil based on nuclear magnetic resonance

Xu, Guoqing; Jiang, Yun; Shi, Yang; Han, Yujiao; Wang, Mingxian; Zeng, Xinghang

doi:10.1016/j.ijhydene.2020.03.054

Cited by 33 publications

(12 citation statements)

References 33 publications

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“…These results indicate increasing displacing pressure improves the imbibition recovery at capillary and core scales compared with the SI process. This is also supported by experimental studies. , …”

Section: Resultssupporting

confidence: 70%

Coupling the Dynamic Contact Angle into the Dynamic Imbibition Model for Fractal Porous Media

Wang

Lai

et al. 2023

Energy Fuels

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This study aims to develop a fractal model for the dynamic imbibition (DI) process in tight porous media. We developed the model by coupling the dynamic contact angle (DCA) into the DI model at capillary and core scales. A numerical method was proposed to solve the developed model. We then validated the model against experimental data reported in the literature. The results show a relatively satisfying fitting between our DI model and experimental data. We also compared the imbibition rate and oil recovery predicted by the DI model considering and not considering the DCA. The results indicate that considering the DCA improves the DI model's accuracy, whereas neglecting the DCA results in the overestimated imbibition rate and oil recovery for the DI process. We conducted sensitivity analysis to evaluate how the contact angle, interfacial tension, and displacement pressure affect our DI model's performance in calculating imbibition recovery. The results show a relatively more significant difference in imbibition recovery determined by DI models considering and not considering the DCA at a relatively high contact angle, a relatively high interfacial tension, and a relatively low displacing pressure. This study highlights the importance of considering the DCA in DI modeling for fracturing practices which associate with surfactant injections to alter wettability and reduce interfacial tension in tight reservoirs.

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Section: Resultssupporting

confidence: 70%

Coupling the Dynamic Contact Angle into the Dynamic Imbibition Model for Fractal Porous Media

Wang

Lai

et al. 2023

Energy Fuels

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“…Therefore, more energy is needed to increase the industrial production of countries. In this way, new investments will increase, and this will contribute to the economic growth of the country [15]. Another advantage of the mentioned issue is that it is possible to reduce the unemployment rate of the country by providing new employment opportunities.…”

Section: Sustainability and Sustainable Production In Energy Industrymentioning

confidence: 99%

Corporate Governance-Based Strategic Approach to Sustainability in Energy Industry of Emerging Economies with a Novel Interval-Valued Intuitionistic Fuzzy Hybrid Decision Making Model

Huang

Dınçer

et al. 2020

Sustainability

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The sustainability in energy industry is one of the most prominent issues in emerging economies because of needs for the long-term growth of production and managerial capacity. Accordingly, corporate governance could lead to develop the sustainable production of energy industry. The purpose of this study is to define a set of criteria and dimensions for analyzing the corporate governance-based strategic approach to sustainability in the energy industry of emerging economies. For this purpose, this study provides several novelties by extending a hybrid decision making model with interval-valued intuitionistic fuzzy sets (IVIF) and defining the related criteria and dimensions of corporate governance-based strategic approach with the supported literature. IVIF decision making trial and evaluation laboratory (DEMATEL) is constructed for measuring the relative importance of criteria and dimensions. IVIF VlseKriterijumska Optimizacija I Kompromisno Resenje (VIKOR) is applied for ranking the corporate governance-based performance of sustainable energy industries in emerging economies. Sensitivity analysis is also used for understanding the coherence of ranking results. Analysis results illustrate that the energy industry could provide more sustainable results than the conventional managerial policies by considering the social capital of board members. Additionally, mass-economies are closely related to the sustainable production capacities of energy industry and have the best performance results for the corporate governance-based sustainable energy production strategies. The results are discussed to provide the policy recommendations by comparing analysis results of emerging economies for further studies.

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“…First, a certain volume of water is injected into the reservoir through a production well, then the well is soaked for a period of time, and finally, oil is produced through the production well. The feasibility of water huff and puff for tight oil reservoirs lies in the following: first, the water huff and puff technology does not require the ultrahigh injection pressure required for water flooding, and there will be no burst flooding between production wells and water injection wells; second, water huff and puff technology can effectively produce oil by using mechanisms such as energy enhancement, imbibition, and oil–water gravity differentiation. − Compared with energy enhancement and oil–water gravity differentiation, imbibition is a more complicated problem, and it is also a hotspot in the current research on the efficient development of tight oil reservoirs. − …”

Section: Introductionmentioning

confidence: 99%

The Law and Mechanism of the Sample Size Effect of Imbibition Oil Recovery of Tight Sedimentary Tuff

Yang

Dong

et al. 2022

ACS Omega

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Imbibition is an important mechanism to improve the recovery factor (RF) of a tight oil reservoir. Accurately evaluating the oil production capacity of tight oil reservoirs by imbibition is of great significance for the formulation of oilfield production plans and productivity prediction. However, there is currently no unified regulation on the selection of rock sample size in tight oil reservoir imbibition evaluation experiments, resulting in great differences in reservoir imbibition oil production capacity obtained from rock samples of different sizes, which brings great challenges to the efficient development of tight oil reservoirs. To clarify the law and mechanism of the rock sample size effect of tight core imbibition oil recovery, this paper takes the newly discovered tight sedimentary tuff (TST) oil reservoir as an example. First, several representative real cores were collected. Then, their wettability and pore structure characteristics were analyzed. Finally, physical simulation experiments of imbibition under different rock sample sizes were conducted. The results show that the TST has very favorable imbibition conditions, which are manifested in the following: (i) the wettability is weakly hydrophilic to hydrophilic; (ii) the mineral composition is tuffaceous minerals, calcite, and quartz, without clay minerals; (iii) micro-nanoscale pores are developed; and (iv) the pore throats are evenly distributed. In the imbibition experiments of rock samples of different sizes, the oil production characteristics of the core surface, the variation form of imbibition rate, pore production characteristics, and the influence mode of imbibition pressure on imbibition do not have the sample size effect. However, the RF of the spontaneous imbibition has an obvious sample size effect, and there is a good exponential function relationship between the imbibition RF and the specific surface area (SSA) of cores. The fundamental reason why the rock sample size effect of the TST imbibition oil recovery is relatively stable and has strong regularity is that its pore structure and wettability are relatively homogeneous and stable. The change of rock sample size does not have a great impact on the distribution of the core pore structure and wettability, resulting in no significant change in its imbibition power, resistance, and distance. Therefore, the main factor determining the imbibition RF of rock samples with different sizes is their SSA. The research results of this work can provide an important theoretical basis for understanding the law and mechanism of TST imbibition oil recovery and unifying the imbibition experimental results of small-sized rock samples.

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Experimental investigations of fracturing fluid flowback and retention under forced imbibition in fossil hydrogen energy development of tight oil based on nuclear magnetic resonance

Cited by 33 publications

References 33 publications

Coupling the Dynamic Contact Angle into the Dynamic Imbibition Model for Fractal Porous Media

Coupling the Dynamic Contact Angle into the Dynamic Imbibition Model for Fractal Porous Media

Corporate Governance-Based Strategic Approach to Sustainability in Energy Industry of Emerging Economies with a Novel Interval-Valued Intuitionistic Fuzzy Hybrid Decision Making Model

The Law and Mechanism of the Sample Size Effect of Imbibition Oil Recovery of Tight Sedimentary Tuff

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