Evaluation of Seismic Potential in a Longwall Mine with …
Request PDF | Evaluation of Seismic Potential in a Longwall Mine with Massive Sandstone Roof Under Deep Overburden: an Update | In 2016, a 3.7-ML magnitude event caused by mining activity occurred ...
Study on CBM and tight sandstone gas co-mining …
A comprehensive evaluation index is established and used to judge the co-mining feasibility of 14 wells (J-1 to J-14) in the No. 8 coal seam and adjacent …
The Role of Sandstone Mineralogy and Rock Quality in the
The main objectives of this work are to examine the performance of LSW by use of four sandstone rocks during secondary- and tertiary-recovery modes; to …
A hyperspectral evaluation approach for quantifying salt
Abstract. Salt-induced weathering is a common phenomenon in stone relics, and its traditional artificial evaluation of severity is greatly affected by subjective consciousness and lacks systematic standards. Here, we propose a hyperspectral evaluation method for quantifying salt-induced weathering on sandstone surfaces in laboratory tests.
Mineral Composition and Full-Scale Pore Structure of
In situ leaching (ISL) is becoming the main mining practice for sandstone-type uranium deposits in China. The key to ISL technology is to aid the leaching solution in contacting the ore bed over a large range, which will induce a series of chemical reactions to extract uranium; thus, it is essential to thoroughly understand the reservoir physical …
Influence of dynamic load and water on energy …
Stress–strain curve analysis. The stress–strain profiles of natural sandstone, saturated sandstone as well as dry sandstone are presented in Fig. 4.There are four major stages to these curves ...
An upscaling approach to predict mine water inflow from roof sandstone …
DOI: 10.1016/j.jhydrol.2022.128314 Corpus ID: 251562356; An upscaling approach to predict mine water inflow from roof sandstone aquifers @article{Xu2022AnUA, title={An upscaling approach to predict mine water inflow from roof sandstone aquifers}, author={Lulu Xu and Meifeng Cai and Shuning Dong and Shangxian Yin and Ting Xiao …
Evaluation of white sandstone mechanical …
Evaluation of white sandstone mechanical behaviour and the energy evolution of prepeak unloading damage. Zhonghao Liang1, Zhuoqun Yu1, Longren Guo1, Sa Huang1, Nan …
Quantitative Evaluation of Tight Sandstone …
Quantitative Evaluation of Tight Sandstone Reservoirs Based on Data Mining Using MICP Data. Conference paper. First Online: 15 June 2021. pp 3224–3233. …
CDC
Mining Publication: Evaluation of Seismic Potential in a Longwall Mine with Massive Sandstone Roof Under Deep Overburden. A recent seismic event was recorded by a deep longwall mine in ia at 3.7 ML on the local magnitude scale and 3.4 MMS by the United States Geological Survey (USGS) in 2016. Further investigations by the …
Real-time computerized tomography (CT) experiments on sandstone …
The rock was lime-cemented sandstone taken from the dam foundation of Xianglangdi hydraulic project on the Yellow River, 40 km far from Luoyang City in Henan province, China.It is 130 km upstream Sanmenxia reservoir and 115 km downstream Huayuankou, Zhenzhou city (see Fig. 1).The main function of the project is to control …
A multi-scale geological–engineering sweet spot evaluation …
The geological sweet spot evaluation model mainly accounts for total hydrocarbon content, water saturation, and reservoir porosity and permeability. Download : Download high-res image (554KB) Download : Download full-size image; Fig. 1. Workflow of the "geological–engineering" dual sweet spot evaluation method for tight sandstone …
Energies | Free Full-Text | Experimental Study on …
Mining-induced hydromechanical behavior of sandstone is critical to mining safety and disaster prevention. To investigate the evolution behavior of the mechanical and permeability properties of …
Evaluation of Fragments from Disc Cutting of Dry and Saturated Sandstone
As the use of mechanical excavation in tunneling and mining activities expands, so has the use of disc cutters in various ground conditions. The impact of moisture content on rock behavior and rock excavation by disc cutters is examined in this study. This was done through a series of full-scale cutting tests using a 292 mm (11.5 in.) disc cutter …
Movable fluid evaluation of tight sandstone reservoirs in …
Thick bed sandstone usually has the highest P mf and S mf (Fig. 14 A). As sandstone bed thickness decreases, the fluid mobility also reduces significantly. Thin bed sandstone has the lowest fluid mobility. In addition, the P mf and S mf of tight sandstone increase as the distance from the adjacent sand-mudstone interface increases (Fig. 14 B ...
Fracture of sandstone characterized by digital image correlation
Abstract. Evaluation of mode I fracture characteristics, such as critical opening displacement and process-zone length, is fundamental for the analysis and prediction of crack growth. To identify deformation with micron-scale resolution, experiments were performed using digital image correlation, where displacement is determined through a ...
(PDF) Sustainable Utilization of Quartz Sandstone Mining …
May. 2020 Sustainable utilization of quartz sandstone mining wastes: Technical note on Chloride and corrosion resistance Sanjeev Kumar1*, Ramesh Chandra Gupta2, Laszlo Csetenyi3 1 2 Research Scholar, Malaviya National Institute of Technology, Jaipur, India Faculty in Department of Civil Engineering, Malaviya National Institute of Technology ...
Water abundance prediction of sandstone aquifers based …
To establish a more accurate roof water abundance evaluation model and mitigate the difficulties in roof water abundance prediction and evaluation in the coal mine production process, the 2101 working face of the Yingpanhao coal mine was studied. Combined with the hydrogeological characteristics and drilling data of the study area and …
Reformability evaluation of blasting-enhanced permeability …
@article{Wang2023ReformabilityEO, title={Reformability evaluation of blasting-enhanced permeability in in situ leaching mining of low-permeability sandstone-type uranium deposits}, author={Wei Wang and Xuanyu Liang and Qi Ying Niu and Qizhi Wang and Jinyi Zhuo and Xuebin Su and Genmao Zhou and Lixing Zhao and Wei Yuan …
Evaluation of seismic potential in a longwall mine with …
Evaluation of seismic potential in a longwall mine with massive sandstone roof under deep overburden Mark A. Van Dykea,*, Wen H. Sua, and Joe Wicklineb aGround Control Branch, NIOSH, Pittsburgh ...
Sandstone
Sandstone is an item that can only be mined from sandstone rocks at the Western desert mining site (Quarry) south of the Bandit Camp in the Kharidian Desert. In the quarry, as in the desert, desert heat will …
Porosity prediction in tight sandstone reservoirs based on a …
Characterizing reservoir porosity is crucial for oil and gas exploration and reservoir evaluation. Due to the increasing demands of oil and gas exploration and development, characterizing reservoir porosity to the required precision using current methods is challenging. Therefore, this study proposes a Pearson correlation–random …
Study on the water-richness law and zoning …
An evaluation system that consisted of four indicators, i.e., sedimentary environmental impact index, interlayer ratio of sandstone and mudstone, sandstone …
Evaluation of seismic potential in a longwall mine with …
Evaluation of seismic potential in a longwall mine with massive sandstone roof under deep overburden. Mark A. Van Dyke, a, * Wen H. Su, a and Joe Wickline b ... Mining-induced seismicity has a long history in coal mining and has been tracked since the 1920s in Europe . Although many subsequent research efforts have been performed in various ...
Quantitative Evaluation of Tight Sandstone Reservoirs …
Request PDF | Quantitative Evaluation of Tight Sandstone Reservoirs Based on Data Mining Using MICP Data | Tight sandstone reservoirs have become a highlight of unconventional oil and gas ...
Entropy Evaluation Method for Sandstone Uranium …
16-1 # and 16-2 # mining area model. (a) Layout of boreholes and distribution of mining units in 16-1 and 16-2 mining areas. (b)We divided the model into 36 mining units according to the actual ...
Evaluation of sweet spots for a tight sandstone reservoir: A
Reservoir sweet spot evaluation is very important for tight sandstone gas exploration and development. Due to the characteristics of large burial depth, strong diagenesis heterogeneity, and prominent importance of diagenetic facies, sweet spot evaluation is the focus and difficulty of unconventional oil and gas exploration and development.
Study on CBM and tight sandstone gas co-mining feasibility …
A comprehensive evaluation index is established and used to judge the co-mining feasibility of 14 wells (J-1 to J-14) in the No. 8 coal seam and adjacent sandstone layers in the Linfen block. Results show that with increasing ratio of permeability, ratio of porosity, and ratio of reservoir thickness (sandstone/coal), the accumulative gas ...
Water-richness evaluation method and application …
Water-richness evaluation method and application of clastic rock aquifer in mining seam roof. Mei Qiu, Zhendong Shao, Weiqiang Zhang, Yan Zheng, Xinyu Yin, …
Characterization and evaluation of brittleness of deep bedded sandstone …
1. Introduction. Rock brittleness is the liability of rock failing without large plastic deformation under complex loading. Additionally, rock brittleness always plays an important role in the field of mining rock mechanics and is often used to identify the failure characteristics of surrounding rock in deep mines [1].Additionally, there are significant …