Showing papers in "Journal of Natural Gas Science and Engineering in 2016"

TL;DR: Natural gas (NG) is a naturally gaseous hydrocarbon mixture that is formed under the earth's surface and is considered to be the cleanest fossil fuel and is a safe source of energy when transported, stored and used as mentioned in this paper.

TL;DR: In this article, the experimental developments in laboratory for possible field applications have been discussed in the upstream oil sector research and the literature review on laboratory works shows that the nanoparticles are effective to recover ∼10% additional oil in core flooding experiment.

TL;DR: Wang et al. as discussed by the authors presented a comprehensive review of how coal mine methane extraction and utilization evolve with time from underground extraction to surface drainage to combined surface-underground approach.

TL;DR: In this paper, the authors provide a critical review of the observations (laboratory and field), the mechanisms behind those observations, and the models to mimic the imbibition behavior of shales.

TL;DR: A comprehensive review of gas hydrate dissociation kinetic models and hydrate reservoir simulators is provided in this article, with model formulation, assumptions, governing equations, solution method and limitations highlighted.

TL;DR: In this paper, an investigation of the effects of the modification of aluminum oxide (Al2O3) with various dopants, namely CeO2 and/or La 2O3 for Ni based catalysts (Ni/CeAl, Ni/LaAl and Ni/ceLaAl) synthesized via the wet impregnation method at a constant nickel loading (8 ¼ %), was performed for the biogas dry reforming reaction.

TL;DR: In this article, the capacity and applicability of cryogenic fracturing using liquid nitrogen are demonstrated and examined, and the efficacy of liquid nitrogen in enhancing fracture initiation and propagation in concrete samples, and shale and sandstone reservoir rocks.

TL;DR: In this paper, the spontaneous imbibition induced by the high capillary force of tight rocks was found to be a significant mechanism responsible for low flowback efficiency in tight rocks.

TL;DR: In this article, the authors provide an overview of the recent developments in the pore structure characterization of tight gas sandstones, permeability measurement techniques, and enhanced tight gas recovery techniques.

TL;DR: In this article, the pore structure characteristics of the Lower Silurian Longmaxi Formation shales collected from western Hunan and Hubei were investigated using high-pressure mercury injection and low-temperature N2 adsorption/desorption experiments.

TL;DR: Based on the desorption experiments of coal particles with different sizes, the possibility of coal powders in the outburst development stage was studied from the perspective of energy balance and pneumatic conveying as discussed by the authors.

TL;DR: In this article, the applicability of the nanoindentation theories to study mechanical properties of shale samples at nanoscale was demonstrated, and the elastic modulus and hardness of different samples were calculated, compared and related to their mineral compositions and microstructures which are detected by 2D XRD and FESEM methods, respectively.

TL;DR: A review of coal seam gas (CSG) resources, development, and challenges is presented in this article to provide context for a stream of research findings that are emerging on the Queensland CSG experience.

TL;DR: In this article, the authors used molecular dynamics simulation and Grand canonical Monte Carlo (GCMC) simulation to investigate methane adsorption and diffusion in kerogen, showing that van der Waals interaction between adsorbate and kerogen plays a dominant role compared with Coulomb interaction, especially for CH4.

TL;DR: In this paper, the authors provide an overview of the challenges associated with evaluating key reservoir and hydraulic fracture properties and discuss recent advances in the area of shale gas reservoir and fracture characterization.

TL;DR: The state of the art with regards to mechanistic understanding of uniform carbon dioxide corrosion of mild steel is reviewed and corresponding mathematical models are presented in this article, where existing predictive models are categorized into three groups, termed: empirical/semi-empirical, elementary mechanistic, and comprehensive mechanistic.

TL;DR: In this paper, the main formation damage mechanisms during shale gas reservoir exploitation, including the physical and chemical damage, are discussed in detail, and the systematic evaluation method of formation damage, heat treatment and working fluid loss control, as three further research directions for formation damage control and removal are proposed for the efficient development of shale gas reservoirs.

TL;DR: In this article, an apparatus was designed and used to measure CO2-induced swelling in shale samples at temperatures between 308 and 348 K and pressures up to 15 MPa, and the results showed that the swelling of shale samples initially increases and then lessens with increasing CO2 pressure.

TL;DR: Based on results of laboratory tests and a study of exploration wells, this paper investigated Carboniferous-Permian unconventional natural gases in lateral extension and vertical sequences in northeastern Ordos basin, China.

TL;DR: In this paper, the authors compared various data-driven supervised and unsupervised computational approaches, such as Support Vector Machine (SVM), Artificial Neural Network (ANN), Self-Organizing Map (SOM), and Multi-Resolution Graph-based Clustering (MRGC), to quantify the relationship between geochemical and core data.

TL;DR: In this paper, highly concentrated tri-solvent blends containing 2-amino-2-methyl-1-propanol (AMP), piperazine (PZ) and monoethanolamine (MEA) were experimentally investigated for their potential capabilities in carbon dioxide (CO2) capture.

TL;DR: In this paper, the influence of imbibition on the matrix permeability, micro-fracture permeability and fracture permeability was investigated, and the experimental results showed that the imbibed fracturing fluid will damage and seriously reduce the matrix of the shale sample.

TL;DR: In this paper, a modified three-end diagram concerning the contents of siliceous minerals, carbonate minerals and clay minerals was presented for comparative analyses among different lithofacies in terms of core, pore structure, methane adsorption and gas-bearing characteristics.

TL;DR: In this paper, three types of natural fractures developed in the Paleozoic marine shales of the southeastern Sichuan Basin, including tectonic fractures, diagenetic fractures and abnormal high-pressure-related fractures.

TL;DR: In this article, the effectiveness of supercritical carbon dioxide (ScCO2)-based reservoir fracturing associated with CO2enhanced shale gas recovery is explored to reduce water utilization in shale gas production and has the potential for CO2 sequestration.

TL;DR: In this article, the effect of a polar amino acid, l -histidine on methane hydrate growth kinetics has been investigated, and the presence of l-histidine in the system was found to significantly enhance the growth of hydrate as compared to pure water.

TL;DR: In this paper, a defect free selective top layer of ZIF-8/Pebax 1657 was formed on top of polyethersulfone (PES) sub layer.

TL;DR: In this paper, the fractal dimensions of the Lower Cambrian Niutitang Formation shales in the Middle Yangtze Platform, Southwest China were investigated for pore structure and fractal characteristics using low-field nuclear magnetic resonance (NMR) and N2 adsorption.

TL;DR: In this article, a coupled CFD-DEM (Computational Fluid Dynamics)-DEM (Discrete Element Method) method is employed to simulate the proppant transport process in a hydraulic fracturing system.

TL;DR: In this article, the performance of joint depressurization and thermal stimulation to extract the gas in Shenhu area, South China Sea was numerically investigated, and the influences of warm water injection and the horizontal well placements on the gas production were mainly discussed.