We use foam to improve the gas oil gravity drainage process in the fractured reservoirs.
The liquid fraction, bubble size distribution and the Mueller matrix elements were measured individually during a foam free drainage process.
Additionally, the optimization solution for the primary coolant drainage process is proposed in the aspects of deviation criteria setting, drainage process optimization, system design improvement and volume assisted judgement.
Coal permeability changes during the course of gas drainage process due to the change in pore pressure, porosity, and desorption.
The results show that the proposed framework provides a realistic description of the spatio-temporal evolution of the hydraulic properties of a soil during the drainage process.
The exterior bubbles can be more prominent in the drainage process in cases where the number of the exterior Plateau borders increases due to the geometry of container.
The "elastocapillary" stage includes the stretching process and the fluid drainage process, depending on whether the balance between the elastic forces and the capillary forces reaches or not.
The first part provides a detailed, comprehensive literature survey of the recent advances in the experimental study and modeling of the drainage process in porous media.
A large amount of condensed water near thermal fronts tends to substantially decrease the effective permeability to bitumen in the conventional gravity drainage process.
During the drainage process of CBM wells, the FVS effect is mainly affected by the dropping rate of working fluid level at the stage of single-phase water.
From a dimensionless scaling analysis for gravity drainage process, lab scale parameters are converted to field scale ones, and a field scale simulation model is developed.
