The multifractal structure of shale pores significantly affects the occurrence fluids and permeability reservoirs. However, there are few studies on characteristics that distinguish between organic inorganic pores. In this study, we obtained pore size distribution (PSD) separately by using a new NMR-based method conducted analysis based PSD. We then investigated geological significance two char...

Predicting the permeability of porous media in saturated and partially conditions is crucial importance many geo-engineering areas, from water resources to vadose zone hydrology or contaminant transport predictions. Many models have been proposed literature estimate properties such as porosity, grain size pore size. In this study, we develop a model for by one two fluid phases with all physical...

To study the microscopic seepage mechanism of gas and water in fractured sandstone reservoirs low porosity, this kind reservoir Keshen field, Kuqa depression Tarim basin China, was taken as an example. Based on rock samples visualization technology, nuclear magnetic resonance experiments saturated water–gas drive CT scanning gas–water were conducted. The invasion during development simulated. S...

For a few pairs (G ⊂ Ĝ) of reductive groups, we study the decomposition of irreducible Ĝ-modules into G-modules. In particular, we observe the saturation property for all of these pairs.

The detailed reservoir characterization was examined for the Central Indus Basin (CIB), Pakistan, across Qadirpur Field Eocene rock units. Various petrophysical parameters were analyzed with integration of various cross-plots, complex water saturation, shale volume, effective porosity, total hydrocarbon neutron porosity and sonic concepts, gas effects, lithology. In total, 8–14% high 45–62% sat...

This paper describes a one-dimensional numerical model for natural gas production from the dissociation of methane hydrate in hydrate-capped gas reservoir under depressurization and thermal stimulation. Some of the hydrate reservoirs discovered are overlying a free-gas layer, known as hydrate-capped gas reservoirs. These reservoirs are thought to be easiest and probably the first type of hydrat...

The analysis of two-phase flow in porous media begins with the Stokes equations and an appropriate set of boundary conditions. Local volume averaging can then be used to produce the well known extension of Darcy's law for two-phase flow. In addition, a method of closure exists that can be used to predict the individual permeability tensors for each phase. For a heterogeneous porous medium, the ...

cally, water is assumed to be immobile at the residualwater saturation. In the petroleum industry, the residAt many contaminated sites, nonaqueous phase liquids (NAPLs) ual-water saturation is also called the irreducible-water persist in the vadose zone for long periods of time. This occurs because the permeability of the NAPL becomes negligible at some saturation saturation. This terminology h...

Displacement of oil and water in porous media of reservoir rocks is described by relative                      permeability curves, which are important input data for reservoir performance simulation and drive mechanism studies. Many core studies, such as multiphase relative permeability, capillary pressure and saturation exponent determination, depend on the volume fractions of multiphase flui...

Use of microemulsion in enhanced oil recovery has become more attractive in recent years because of its high level of extraction efficiency. Experimental investigations have been made on characterization of microemulsions of oil-brinesurfactant/cosurfactant system for its use in enhanced oil recovery (EOR). Sodium dodecyl sulfate, propan-1-ol and heptane were selected as surfactant, cosurfactan...