Article
Energy & Fuels
Guojian Wang, Qin Qian, Ronald W. Kluswman, Min Wang, Zuozhen Han
Summary: Understanding the mechanism of hydrocarbon microseepage is crucial for interpreting hydrocarbon anomalies in surface geochemical exploration. An experiment was conducted to simulate vertical microseepage with multiple lithological layers, revealing that microseepage below the water table is primarily controlled by the buoyancy of microbubbles with diffusion as a secondary mechanism, while the dominance of diffusion and minimal gas convection effect is observed above the water table. Micro-fractures were identified as the main channels for microseepage. A phenomenological model was developed to quantify vertical microseepage in different media, providing a valuable tool for field applications.
PETROLEUM SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Hakan Sahal, Ercan Aydogmus, Hasan Arslanoglu
Summary: In this study, a novel organic compound with a special structure was synthesized and used to reinforce polyester composites. The properties of the composites were investigated through experiments and characterization. The results showed that nano-alumina filler could enhance the thermal conductivity and hardness of the composites, while the synthesized SA had the opposite effect.
PETROLEUM SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Zhongzhi Hu
Summary: The study aims to determine the depth range of kickoff points of cluster wells. A probability distribution method is proposed to analyze the control deviation of the closure distance of vertical well sections. By performing a Box-Cox transformation on the raw data, a function of the closure distance probability distribution is established. The applicability of the method is verified through an engineering example.
PETROLEUM SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Suleyman Simsek, Samet Uslu, Hatice Simsek
Summary: This experimental study investigated the effects of animal biodiesel and diesel mixtures, as well as the addition of 2-ethylhexyl nitrate as a fuel additive, on performance and emission characteristics. The results showed that the addition of 2-ethylhexyl nitrate to the fuel mixture improved brake thermal efficiency and reduced carbon monoxide and hydrocarbon emissions.
PETROLEUM SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Li Chen, Huailai Zhou, Xingye Liu, Pengyu Xu, Hanghang Yu, Chao Li
Summary: Carbonate cave reservoirs controlled by large strike-slip faults have rich oil and gas resources and great exploration potential. The effective identification of these reservoirs using geophysical methods is challenging due to low signal-to-noise ratio and strong background reflection interference. This study proposes a method that combines wavelet reconstruction and background modeling techniques to enhance the identification accuracy. The results show that this method effectively separates target reflections from interference reflections and provides a favorable data basis for subsequent reservoir identification.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Tao Wan, Jing Zhang, Yan Dong
Summary: This paper investigated the CO2 storage capacity in hydraulically fractured horizontal wells in Xinjiang shale oil reservoirs. The study found that utilizing fracture networks and a smaller fracture spacing is critical for improving CO2 storage capacity.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Wenxue Han, Xia Luo, Senhu Lin, Zhongying Zhao, Jinzhong Liu, Qiang Wang
Summary: A semi-open thermal simulation experiment was conducted to study the generation process and characteristics of hydrocarbon gases in lacustrine Type II rocks. The study found that the yield of hydrocarbon gases is approximately the same as non-hydrocarbon gases throughout the generation process. Additionally, the stages of gas generation and their respective sources were investigated.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Augustine Agi, Mohd Zaidi Jaafar, Zulkifli Abdul Majid, Nor Aishah Saidina Amin, Mohd Akhmal Sidek, Faruk Yakasai, Muhammad Abbas Ahmad Zaini, Azrul Nurfaiz Mohd Faizal, Afeez Gbadamosi, Lawal Sirajo, Jeffrey Oseh, Norida Ridzuan, Eugene Ngouangna
Summary: The use of mesoporous silica nanoparticles (MSNP) for stabilizing formation fines in low salinity water flooding can increase oil recovery. The impact of porous media length on the retention of fines at high temperature reservoir conditions was investigated. The study evaluated the effect of concentration, flow rate, porous media length, and temperature on the retention capacity of fines, and examined the remediation potential of MSNP for formation damage. The experimental results showed that MSNP can stabilize reservoir fines by attaching to their surfaces, resulting in increased oil recovery.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Zhanyuan Liu, Tamer Moussa, Hassan Dehghanpour
Summary: The main objective of this paper is to differentiate between formation and fracturing water based on water-flowback response. By analyzing production data from different wells, the authors develop a method to classify the wells and investigate the relationship between different variables. The results show correlations between mHD, mRNP, and other factors, allowing for the approximate differentiation of water types.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Yang Yu, Pan Fang, Biao Zhang, Yuanyuan He, Gao Li, Dong Xiao
Summary: This research studied the influence of normal drill pipe and cuttings removal device on debris migration behavior using the CFD-DEM coupling approach. The results showed that improving inlet fluid velocity and drill pipe rotating speed significantly reduced the cuttings concentration and removal time. The reliability of the designed device was validated by the results, providing guidance for cuttings removal in horizontal wells.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Mortatha Al-Yasiri
Summary: Drilling fluid is crucial in oil and gas drilling as it provides hydraulic pressure, cooling, lubrication, and transportation of cuttings. However, conventional drilling fluids have negative environmental impact and high costs. This study explores the use of broad bean peels as a natural additive in drilling fluids and finds that it improves rheological characteristics and reduces fluid loss. These findings suggest that broad bean peels could be a viable and sustainable replacement for conventional drilling fluid additives.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
A. J. Abou-Kassem, M. Bizhani, E. Kuru
Summary: An extensive review of the friction factor correlations used for pressure loss prediction of yield power-law (YPL) fluid flow in pipes has been conducted, and the results are summarized in this paper. A comparative study was also conducted to determine the predictive performances of various laminar and turbulent friction factor models developed for YPL fluid flow in pipes.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Vivek Kumar Mishra, Vinod Atmaram Mendhe, Alka D. Kamble, Shashanka Pandey, Vikram P. Singh, Priyanka Shukla
Summary: This study evaluates the significance of organo-inorganic constituents in shale samples from the Korbasub-basin of Central India, focusing on their source potential of gas genesis, pore-matrix setup, and gas adsorption and desorption. The analysis reveals important insights into shale gas and provides valuable information for CBM and petroleum operators engaged in methane gas exploration and production. The research highlights the extensive opportunities for research and potentially commercially recovering shale gas in the Korba sub-basin.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Zhipeng Feng, Hamdan Gani, Annisa Dwi Damayanti, Helmy Gani
Summary: This study examines the feasibility of an explainable machine learning approach for elucidating the behavior of drilling parameters in geothermal drilling. The results show that the ensemble CatBoost model performs the best in predicting the rate of penetration, and the explainable ML successfully reveals influential drilling parameters and inflection points of the rate of penetration. The findings demonstrate the model's strength in generating explainable insights and supporting decision-making processes in geothermal drilling.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Hunjoo P. Lee, Scott Staniewicz, Jingyi Chen, Peter Hennings, Jon E. Olson
Summary: Recent InSAR observations in west Texas have revealed centimeter-level surface uplift/subsidence, which is spatially and temporally correlated with increased fluid extraction and injection activities. This study explores the relationship between observed surface displacement and subsurface fault slip and reservoir compaction/inflation using geomechanical analysis and InSAR observations.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Seyed Hasan Hajiabadi, Mahmoud Khalifeh, Reinier van Noort
Summary: Geopolymers based on rocks and similar materials are promising alternatives to Ordinary Portland Cement. This study presents a granite-based geopolymer system modified with a retarder, and evaluates its performance and mechanical properties. The results show that the system with optimized retarder content has appropriate flow characteristics and rapid strength development for downhole applications.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Reza Yousefzadeh, Mohammad Sharifi, Abdorreza Karkevandi-Talkhooncheh, Hadi Ahmadi, Amir Farasat, Mohammad Ahmadi
Summary: This study introduces a novel well trajectory parametrization technique, combines FMM and PSO for trajectory optimization, and addresses the limitations of the PSO-FMM approach. Results suggest that employing the PSO-DIRECT + QM method leads to superior outcomes, albeit at a higher computational cost.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Pauline Marie Nusse, Adrian Ambrus, Ulf Jakob Flo Aarsnes, Ole Morten Aamo
Summary: Drill string vibrations can be addressed using top drive control or specialized tools near the bottom hole assembly. This paper examines the effectiveness of active control of the braking coefficient to improve drill string behavior.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Yukun Xie, Saifei Ma, Haoyu Wang, Nan Li, Jianjun Zhu, Jianli Wang
Summary: This paper proposes an unsupervised clustering method to distinguish patterns for plunger lift data. A model based on the transformer encoder is trained to identify periodic points, which are then used to partition the data into periodic sub-datasets. Through comparison of different data dimension reduction techniques, deep neural networks-based autoencoder is found to achieve the highest clustering accuracy.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
A. -L. Lamidi Benson, Christopher R. Clarkson
Summary: The flowback data analysis methods for unconventional reservoirs are still developing, with previous models often failing to account for dynamic fracture closure and fluid leakoff during flowback. A semi-analytical history-matching approach is proposed in this study to capture the dynamic behavior of hydraulic fractures during the early production period, providing more accurate estimates of fracture properties. This new methodology highlights the importance of considering varying fracture width, cumulative leakoff, and spontaneous imbibition for a more precise analysis of flowback data in stress-sensitive reservoirs.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
