... of pillar dimensions due to stope extraction results in relatively complex three-dimensional pillar geometries, the impact on the pillar behavior can be complex as well. However, in general the width-to-height ratio drops significantly and may eventually be around or below 1. Accordingly, the pillar peak...

... on the pillar's stability factor and the width to height ratio, where the width is the smallest dimension of the rectangular base. The estimation of pillar strength in room-and-pillar stone mines has been studied by researchers and empirical relationships between traditional geometry (square and rectangular...

... fracturing materials matrix proppant particle hydraulic fracture hydraulic fracturing equation of state propagation multi-fracture propagation fracture fracture morphology viscosity interpolation matrix proppant concentration dimension reservoir characterization morphology vector particle...

... ABSTRACT: The fractal dimension theory is applied to the fracture network that impacts the basement and the Paleozoic formation in the northern part of the Hoggar area. The first technique used is the center distance algorithm, which considers only the fault centers distribution as a fractal...

... characterization upstream oil & gas pore co 2 dependency dimension table mineral eval pyrolysis shale gas cambay shale structural geology reservoir characterization inaccessible pore journal toc mesopore diameter adsorption india nanopore ARMA 22 653 Accessible to total nanopore...

... as the mechanical testing of rocks has been performed. Rapid prototyping (RP), additive manufacturing (AM), and three-dimensional printing (3DP) are three interchangeable terms that define a set of methods for the fast, precise, and repeatable production of elements (Zhou and Zhu, 2018). The technology was first...

...) in situ stress, (3) elastic properties, and (4) strength. Of the four dimensions of orthotropy, the third dimension (3) elasticity will be examined in this paper. The objective of this paper is to present the theoretical development and implementation of the equations that define two-and-three-dimensional...

... advanced microseismic analysis and tiltmeter fracture mapping to resolve dimensions of fracture with a non-uniform opening. The algorithms are implemented in a real-time fracture monitoring program which selects the best fit and superposes final-state and transient models on measured micro-deformation. We...

... and spatial increase of fractal dimension. Li et al. (2009) used box correlation of microseismic events. The steps are dimension to describe the spatial complexity of a three- demonstrated as follows: dimensional fracture network. Using the fractal method in the analysis of the connection model can help...

... to their capability in solving complex hydrogeological problems. The model dimension has an important role in the prediction of the inflow rate in numerical modeling. In other words, the distance between the model boundary and the tunnel border can greatly influence the inflow rate prediction. For example...

... and operations upstream oil & gas dimension fracturing materials proppant aperture unconventional hydraulic fracturing fluid dynamics assumption finite element method equation high fidelity hydraulic fracturing simulator perforation wellbore freedom literature simulation analytical solution...

... comparing how detail changes with the scale at which it is measured. These fractal objects have a power-law dependence on the scale and the power is the so-called fractal of Hausdorff dimension D. Consider an assembly of objects which are embedded in a hyper-volume in an E-dimensional Euclidean space...

... ABSTRACT: The fractal dimension is applied to verify whether the 2-D fracture networks that affect the basement and the Cambro-Ordovician reservoirs analog in north Hoggar shield have fractal dimension. The Ajjers, In-Tahouite, and Tamadjert units compose the Cambro-Ordovician reservoirs...

... prediction method of sand-shale rock mechanical parameters is not suitable for calculation of rock mechanical parameters of coal cleats. This study analyzes the fractal feature of the complex structure of coals, introduces fractal two-dimensional box dimension innovatively, uses box dimension to characterize...

... hydraulic fracture induced poroelastic behavior. This work set the foundation for simulating transient pressure responses by explicitly modeling the three-dimensional primary fracture geometries of both treatment and monitoring fractures. Their approach uses a fully coupled poromechanical Finite Element...

... in.) and an internal height of 2.416 m (95-1/8 in accommodating a test specimen with a height of 2.142 m (84-5/16 in The permeameter was designed to minimize rigid wall effects with a threshold minimum specimen dimension to the maximum particle size ratio of 10:1. The actual minimum specimen dimension to the maximum...

... ABSTRACT: The development of longhole stoping mining technique involves the mechanization and increased productivity of underground bulk mining operations. Longhole stoping is usually developed with the tunnel dimensions of 15m × 15m spans. However, when mining such large chamber in deep...

... and allows for non-destructively imaging geomaterials in three dimensions over many length scales (~10 -9 to 10 0 m). While the number of studies involving X-ray CT scanning has been steadily growing, there is a paucity of rules regarding the conduct of that imaging work compared to the well established...

... IUSEL prediction reservoir geomechanics strength prediction compressive strength wellbore integrity MFSL different rock type uc data limitation ffsel rock type Wellbore Design dimension Masoumi Mmfsl highest uc sample size 1. INTRODUCTION Size effect has been an important research...

... a conditional simulation process that propagates deterministic fracture traces in three dimensions. Stochastic fractures are generated based on conditioning to statistics derived from field-mapped fracture traces and orientation parameters. Data mapped from the Äspö TAS08 tunnel close to Oskarshamn, Sweden were...