Journal of Energy Science and Technology is an international, peer-reviewed open access journal dedicated to advancing research the field of energy science and technology. The journal provides a rapid publication process to ensure wide dissemination of high-quality articles to scientists, professionals, and interested individuals worldwide. Our goal is to serve as an efficient, reliable, and trusted platform for scholars and readers, publishing cutting-edge research in the field.
Abstract: Shale gas is an emerging clean energy source. Effective shale gas extraction requires large-scale fracking of shale reservoirs. Due to the difficulty of extracting shale reservoirs with low porosity and permeability, hydraulic fracturing is an effective measure to increase production, and slippery water is a commonly used fracturing fluid system of shale. Some studies have revealed that the pore structure of shale reservoirs is a key factor affecting the flow of shale gas, but they can't fully explain the anomalous engineering phenomenon of "low flowback rate of slippery water and high gas production". In order to comprehensively grasp the influence of slippery water seepage and suction on the pore structure of shale reservoir, and to realize the effective increase of shale gas production. The article investigates the research results of the previous researchers, summarizes the pore structure evaluation method, and focuses on analyzing the influence of three factors on shale pore structure, namely, slippery water injection, slippery water retention, and forced seepage and suction. It is concluded that: slippery water injection promotes the generation and expansion of cracks, and makes the pore throat smooth; slippery water retention destroys the original microstructure and changes the physicochemical properties of the rock; and forced seepage improves the effect of seepage by changing the pressure difference. The effect of pressurized seepage of slippery water in shale reservoirs can effectively improve shale gas recovery, but there are fewer studies in this area, and there are great prospects for future research.Abstract: Shale gas is an emerging clean energy source. Effective shale gas extraction requires large-scale fracking of shale reservoirs. Due to the difficulty of extracting shale reservoirs with low porosity and permeability, hydraulic fracturing is an effective measure to increase production, and slippery water is a commonly used fracturing fluid system of...Learn More
Abstract: This article investigates a mathematical model for smart microgrids that integrate several energy resources. The model is ubiquitously applicable such that it enables users and prosumers to deliver an optimal trade-off among the following three key output functions. The solutions of smart grids deliver output power, an energy benefit or cost, and carbon emissions during operations. It is imperative for smart renewable energy systems to integrate both renewable energy and energy storage technologies so that the commonly discounted solar and/or wind power issues can be addressed. Energy storage technology can ensure the production of various smart grids with stable and safe operations to counter normal power fluctuations. The investigation conducted herein yields a predictive model with a mathematical power utility matrix that is specified by a 3X3 square matrix. As a result, carbon emissions can be effectively reduced; e.g., in one case, the achieved reduction is approximately 79.6% in real time. The standard carbon emissions reach a range of 0.425kg/kWh to 0.5537 kg/kWh at the carbon peak state and nearly zero at carbon neutrality. Finally, the optimal scheduling method results in minimized carbon emissions, thus greatly benefitting the existing carbon peak and carbon neutrality goals.Abstract: This article investigates a mathematical model for smart microgrids that integrate several energy resources. The model is ubiquitously applicable such that it enables users and prosumers to deliver an optimal trade-off among the following three key output functions. The solutions of smart grids deliver output power, an energy benefit or cost, and c...Learn More
