Dimethyl ether (DME) is a compound first introduced by Shell as chemical solvent for enhanced oil recovery (EOR). This study aims to investigate the efficiency of EOR using minimum miscible pressure (MMP) and viscous gravity number when mixed CO2 DME injected. Adding water-alternating-gas process reduces MMP number. Reduction in results conditions at lower pressures, which has favorable effect ...

Carbon dioxide storage combined with enhanced oil recovery (CCS-EOR) is an important approach for reducing greenhouse gas emissions. We use pore-scale imaging to help understand CO2 and during CCS-EOR at immiscible near-miscible injection conditions. study in situ flooding oil-wet reservoir rock elevated temperature pressure using X-ray micro-tomography. observe the predicted, but hitherto unre...

different recovery mechanisms are activated during the production from reservoirs. wells sometimes are kept with the injection. therefore the evaluation of injection indices depended on material injection, seems to be necessary. this study is going to determine the drive indices for a reservoir by making a model using eclipse. the model consists a gas cap and aquifer, in which there is an injec...

an industrial gas turbine has the characteristic of decreasing output power on hot summer days while electricity demand peaks. steam injection in gas turbines has been used for many years to prevent the loss of performance of gas turbines caused by high ambient temperature. vodoley system is a closed steam injection gas turbine cycle (csigtc), which is known as a self-sufficient in steam produc...

Natural gas injection is considered for enhanced oil recovery (EOR) in a high saturation pressure reservoir block B111 of the Dagang oilfield, China. To investigate interaction characteristics injected natural and crude oil, ability dissolution–diffusion miscibility–extraction was tested using piece high-temperature high-pressure PVT equipment. The physical properties minimum miscible (MMP) gas...

Abstract Three-phase flow in porous media is encountered many applications including subsurface carbon dioxide storage, enhanced oil recovery, groundwater remediation and the design of microfluidic devices. However, pore-scale physics that controls three-phase under capillary dominated conditions still not fully understood. Recent advances three-dimensional imaging have provided new insights in...

Abstract Several benefits of CO 2 injection are reported in the literature such as its ability to mitigate greenhouse gas emissions and increase oil recovery at a low cost. However, correlated reservoir-engineering problems with low-temperature including formation damage leakage risk still uncertain has not been comprehensively investigated. This research examines effect on lowering breakdown p...

In this paper, a mathematical model has been developed to quantitatively examine the effect of viscosity and heterogeneity on dispersion in porous media at pore scale during miscible flooding processes. More specifically, Navier-Stokes equation advection-diffusion are coupled with supplementary equations describe solvent transport behaviour. Two-dimensional heterogeneous models numerically as f...

a typical iranian carbonate matrix block surrounded by an open fracture was modeled in order to understand the fracture-matrix interaction and realize how to model the interaction best. the modeling was carried out by using a fine-scaled eclipse model in the single porosity mode (the fractures were explicitly modeled). the model was extended to a stack of 6 matrix blocks to understand block-to-...