... Abstract Subsurface energy systems have historically focused on extraction of hydrocarbons through mining (coal) or drilling and pumping (oil and gas). These extractive industries have led to myriad environmental damages at the land surface as well as large greenhouse gas emissions...

... Abstract Hydraulic fracturing technology, as one of the measures to enhance the coal seam permeability artificially and increase the coalbed-methane gas extraction rate, has its remarkable advantages. Although the interaction between fluid and coal has been studied comprehensively...

... Abstract The stress state variations due to seasonal injection and extraction of gas in HTB underground gas storage (HTB-UGS) were estimated, as well as the fault-slip analysis of the main fault, to understand how gas injection and extraction result in earthquakes. The stress state...

... photogrammetry [5-9] . The DOM formed by these dense point clouds allows engineers to perform the information extraction on a computer. In addition, many researchers have been working on the automatic extraction of discontinuity parameters (e.g., orientation, spacing, trace persistence, and roughness) from...

... Abstract Disaster prevention inspections, without overlooking the sources of falling rock, are essential for establishing efficient slope management and countermeasures. This study presents an automatic extraction method for rockfall sources, using remote sensing and artificial intelligence...

... gold mine in Nuba Mountains, Sudan. The satellite image contains band 7, band 4, and band 1 in red, blue, and green. In addition, band 5 is assigned to obtain the average of the three bands. The automatic extraction of lineaments approach was initially carried out with PCI Geomatica software...

... is benefit for the long-term stability of heat exchangers. pipe environmental science 861 geologist reservoir geomechanics seepage foundation extraction liquified natural gas (lng) society iop publishing iop conf gasification lng gasification geology geological subdiscipline conference...

... Abstract An area consisting of UG2 Spit Reef provided a unique challenge to extract the reserves by means of a safe and feasible mining strategy. The proposed strategy was required to ameliorate the exposure of personnel to geotechnical risk whilst providing a feasible scenario from a cost...

... diagrams that calculate the amount of inclination for each grid datum and change the lightness accordingly to express the topography, and wavelet-analysis diagrams that emphasize the change in the unevenness through wavelet analysis, are generally used. However, it is difficult to extract sources...

... in northern part of India. In most of the cases the orebody occurs as steeply pitching deposit, but often some limbs or lenses of the main orebody occur flatly dipping. This makes them prone to sudden collapse, when extracted using open stoping methods at shallow and moderate depth of cover. It is therefore...

... was used for evaluating potential modes of failure due to unfavorably oriented discontinuities. From the analysis it is found that pre mining support of roof bolt and long bolt to be introduced for supporting the entries to the stope and also for reinforcing the stope back during extraction of the slices...

.... The acquired geometric data of fractures were compared with data acquired by a geologist. Consequently, the fractures were extracted by visible reading of images generated from 3DLS data, and a trace map was generated as geometric data. Strike/dip data of fractures were also acquired. The results confirmed...

... paper, the variation in fault-slip potential induced by ore extraction in underground mining is examined with a 3D mine-wide model encompassing a steeply dipping tabular orebody at a depth of 1.5km below surface, and in situ stress conditions that are typical of the PreCambrian Shield. The fault...

... Displacement Contour coal seam open pit wall coal bed methane displacement Reservoir Characterization contour coal seam gas numerical analysis mechanical property failure state pit wall underground working metals & mining complex reservoir extraction investigation Thailand underground...

... ABSTRACT Difficult geo-mining conditions of a deep seated coal pillars limit the scope of conventional semi-mechanised depillaring process, mainly due to their slow rate of extraction. Application of a fully mechanized depillaring process has resulted faster rate of extraction resulting...

... Abstract: The study of structural lineaments is important for mineral exploration, geotectonic and geotechnical studies, flow and contaminant transport and for the mitigation of geologic hazards. This work deals with automatic extraction of lineaments from satellite imageries of different...

... and geotechnical quarry assessment. This study reports results from the second phase which comprises the evaluation of quarries and the identification of potential areas for the extraction of armourstone with quality and availability to supply maritime structures. It was proposed a zoning of the NW Portugal region...

... Abstract: Indian coalfields inherit difficult geo-mining conditions, which make it difficult to extract developed coal pillars by an underground mining approach. However, to meet the demand of coal production, three attempts of application of the mechanised depillaring have been made...

... stope 4 WCR reservoir geomechanics Engineering wcr value metals & mining stochastic analysis extraction parametric study numerical model deterministic model haulage drift stability probability unsatisfactory performance haulage drift Reservoir Characterization Upstream Oil & Gas...

... Abstract: Exploitation of minerals is a major source of revenue stimulating growth of a nation. Wave of globalization has further augmented endeavors in this direction leading to extraction of ore locked in remnant mine pillars situated in high ground stresses. One mega operation was carried...