The main factor affecting the economics of foam-assisted water alternative gas (FAWAG) process is the loss of foaming agent by adsorption onto reservoir rocks. In this study, the effects of phases, surfactant concentration, salinity, adsorbents, and sacrificial agent on adsorption density were investigated by special adsorption experiments. Moreover, a series of FAWAG tests were performed to ex...

In the Niger Delta, low oil recovery rates less than 30% results mainly due to production problems such as water coning, wax deposition and high gas/oil ratios. Meanwhile, remaining becomes a good candidate for EOR methods CO2 injection, polymer foam in-situ combustion steam injection. But it stands, practice of these known enhanced is scarce in Nigeria’s Oil Gas industry. However, this project...

the main factor affecting the economics of foam-assisted water alternative gas (fawag) process isthe loss of foaming agent by adsorption onto reservoir rocks. in this study, the effects of phases,surfactant concentration, salinity, adsorbents, and sacrificial agent on adsorption density wereinvestigated by special adsorption experiments. moreover, a series of fawag tests were performedto examin...

Naturally fractured reservoirs are one of the hydrocarbon resources where application foam flooding is particularly recommended, as can divert flow displacing fluid from high-permeability regions (fracture networks) to low-permeability (rock matrix blocks). However, its in heavy oil challenging and results inadequate sweep efficiencies. The current practice (including polymer enhanced flooding,...

To reduce the cost of arranging air foam flooding equipment at each wellhead, a method establishing centralized injection stations is proposed. The flow pattern and resistance characteristics mixtures in different initial conditions are studied. Experimental results indicate that probability density function stratified obtained by comparing stainless steel transparent pipes. If gas–liquid ratio...