Energy is an essential component for prosperity, economic growth, and development has become a basic necessity humans, but at the same time, it impact on environment. Therefore, believed that, in coming future, renewable energy will play important part fulfilling demand. In that respect, geothermal be vital as continuous source of not affected by metrological conditions can used power generatio...

The appropriate design of the operating pressure underground gas storages (UGSs) is great significance to their safe and profitable operation. In situ stress basic data for determining upper limit UGSs, analyzing fault stability in reservoir areas, evaluating trap tightness. Generally, injection UGSs a comprehensive geomechanical problem. After research comparison measurement methods, it believ...

The numerical simulation of the dynamic interaction between hydrocarbon reservoirs and wells has been an object of study for over three decades. Such a coupled approach is necessary to solve a variety of dynamic flow problems, such as pressure transient analysis (well testing) with wellbore storage, liquid loading, near-well reservoir clean-up, unstable gas lift, or the development of smart wel...

Significant stress changes caused by sorption-induced swelling raise the coal wellbore failure potential, which directly impacts safety and sustainability of CO2 enhanced coalbed methane (CO2-ECBM). Additionally, a mixture gas (CO2/N2) injection is recommended due to sharp decline permeability with pure injection. In this study, incorporating adsorption poroelastic effects, semi-analytical mode...

1.0 Introduction Hydraulic fracturing, the process of initiation and propagation of a crack by pumping fluid at relatively high flow rates and pressures, is one of several techniques for creating cracks in rock. Fractures in the earth's crust are desired for a variety of reasons, including enhanced oil and gas recovery, re-injection of drilling or other environmentally sensitive wastes, measure...

We analyze the combined effects of aquifer heterogeneity and pumping operations on seawater intrusion (SWI) in coastal aquifers, a phenomenon which is threatening Mediterranean and worldwide regions. We conceptualize the aquifer as a three-dimensional randomly heterogeneous porous medium, where the spatial distribution of permeability is uncertain. The geological setting of our study is pattern...

Aquifer information carried by aquifer test data may be affected by the presence of a finite thickness skin around the wellbore. The mathematical treatment for an aquifer accounting for the skin zone can be characterized by five parameters, that is, the outer radius of the skin zone and the transmissivity and storativity for each of the skin and aquifer zones. Sensitivity analysis was performed...

The most prominent aspect of multiphase flow is the variation in the physical distribution of the phases in the flow conduit known as the flow pattern. Several different flow patterns can exist under different flow conditions which have significant effects on liquid holdup, pressure gradient and heat transfer. Gas-liquid two-phase flow in an annulus can be found in a variety of practical situat...

Lost circulation is one of the most significant contributors to wellbore instability and causes an increase in drilling operation costs. It also a major contributor nonproductive time must be minimized for improved economic operational performance. The objective this research provide tools information about specific loss management techniques that drillers can use minimize lost circulation. Thi...