Heavy oil resources have become increasingly important in recent years due to a reduction
in light oil production and an increase in energy consumption. A large number of heavy oil …

Oxidative ageing and moisture damage are key factors in bitumen degradation and asphalt
pavement deterioration. The effects of oxygen and moisture on bitumen are governed by …

Diffusion is the key mechanism of enhanced oil recovery (EOR) by CO 2 injection in
unconventional oil reservoirs. The accurate measurement of the diffusion coefficient in …

In this work, five machine learning models based on Gaussian process regression (GPR)
and Extreme gradient boosting (XGBoost) were developed for estimating the diffusion …

CO2 molecular diffusion in subsurface porous media is one of the key mechanisms in high-
pressure–high-temperature CO2 geosequestration and CO2-based enhanced oil recovery …

One hundred fractured reservoirs from around the world were evaluated to determine how
ultimate recovery was affected by inherent reservoir and fluid properties, such as porosity …

Experimental data for the diffusivity of carbon dioxide, methane, ethane and nitrogen in
Athabasca bitumen are presented in the range 25–90° C at 4 and 8 MPa. The diffusivity of …

In this paper, the so-called pressure decay method is applied to measure the molecular
diffusivities of carbon dioxide, methane, and propane in heavy oil. In the experiment, a …

In this paper, a newly developed dynamic pendant drop volume analysis (DPDVA) method
is applied to measure the diffusion coefficients and oil swelling factors of four pure solvents …

The vapor extraction of heavy oil and bitumen, or Vapex, has emerged as a very promising
recovery process since its invention in 1991. The principal reason is the environmental …