The analysis of bored piles, or drilled shafts, at the service limit state is important when foundation settlements are critical to the operation of a structure. The t–z method is a widely used soil–structure interaction model for the analysis of drilled shaft settlement. In current practice, nominal values of soil stiffness and strength parameters are used to determine settlement based upon th...

In northern Afghanistan, the Kashkari oil field’s first production well was drilled in 1976, and by 1979, there were a total of ten wells area. According to results surveys calculations conducted research institutions, amount original place (OOIP) site around 140 million barrels (MMbbls). Therefore, method increase recoverable field low-salinity water flooding is presented this study. First, ex...

The permeability characteristics of natural fracture systems are crucial to the production potential shale gas wells. To investigate behavior a regional fault that is located within Wufeng Formation, China, samples with micro-fractures was measured at different confining pressures and complemented helium pycnometry for porosity, computed micro-tomographic (µCT) imaging, comparison well testing ...

The environmental impact of shale energy development is a growing concern in the US and worldwide. Although topic well-studied general, development’s on drylands has received much less attention literature. This study focuses effect land cover Permian Basin region—a unique arid/semi-arid landscape experiencing an unprecedented intensity drilling production activities. By taking advantage high-r...

Mechanization is a depollution activity, because it provides an energetic and ecological response to the problem of organic waste treatment. Through burning, biogas from mechanization reduces gas pollution fermentation by factor 20. This study aims better understand influence seasons on emitted in landfill city Mohammedia. The composition that naturally emanates has been continuously analyzed o...

Background. In hydrogeological terms, the territory of Barents-Kara shelf has not been studied in sufficient detail. The data on its zoning are based mainly results research undertaken 1970s, when attempts were made to isolate artesian basins according a set indicators oil and gas content. Currently, position basin boundaries can be adjusted using current from geological testing wells. Aim. To ...

Abstract: Reduced Beam Section (RBS) and Drilled Beam Section (DBS) are seismic moment resistant frame connections, introduced after 1994 Northridge earthquake. RBS connection has been tested under cyclic loading and showed acceptable performance. In this paper, seismic behavior of Drilled Beam Section (DBS) connection is studied numerically using finite element method. A drilled beam section ...

In the Egyptian deserts, new land reclamation projects have been recently established to meet increasing-population growth rate and food demand. These mainly depend on different groundwater aquifers. El-Farafra Oasis is one of “1.5-million-feddan project” areas in Western Desert Egypt where only available water source world’s largest fossil freshwater reservoir “the Nubian Sandstone Aquifer Sys...

The Bowland Shale Formation is one of the most promising targets for unconventional exploration in United Kingdom, with estimated resources large enough to supply country's entire natural gas consumption 50 years. However, development has stalled due concerns over hydraulic-fracturing induced seismicity. Only three wells have been drilled and hydraulic fractured date Shale, all produced levels ...

The Chang 8 Member of the Upper Triassic Yanchang Formation in southwestern Ordos Basin is a typical tight sandstone reservoir and has an average porosity 8.60% air permeability 0.20 mD. Multi-scale faults fractures are widely developed these reservoirs. In this study, three-dimensional seismic data, outcrops, cores, imaging logs, thin sections were used to classify at multiple scales. Combined...