Compared to sole gas flooding, foam flooding provides superior mobility control, enhanced sweep, and greatly improved oil recovery from depleted oil reservoirs. However, since most modern oil reservoirs are located at higher depths and further away from foam generation units, it is becoming increasingly difficult to maintain foam stability, especially in modern deeper oil wells. Thus, in this study, an alternative study in foam formulation has been reported. Instead of preparing the foam at the surface and injecting it down the oil well, into the subsurface, the foam can be formed “in situ” by saturating the porous media downhole by foaming agents. The foaming agents in this study consisted of an anionic surfactant, sodium dodecyl sulfate (SDS), and the whole solution was stabilized by the addition of 1000 ppm PAM and varying concentrations of silica nanoparticles (NPs). The formed foam can then be pushed conventionally by chase water and provide increased oil recovery. Increasing NP concentration, initially improved foam stability as a higher number of NPs participated in strengthening the gas bubble. Insitu foam formation was also investigated for improving carbon storage in depleted oilfields. The injection rate of gas and the slug size of the foaming agent were varied to determine gas storage before the breakthrough. A lower flow rate was found to be more conducive for foam formation while increasing slug size had little effect on gas storability in the reservoir.

与单一的气体驱替相比，泡沫驱提供了卓越的流动性控制，更大的扫掠率以及从枯竭的油层中大大提高了采收率。然而，由于大多数现代油藏位于较高的深度并且远离泡沫发生单元，因此保持泡沫稳定性变得越来越困难，尤其是在现代的更深的油井中。因此，在该研究中，已经报道了泡沫制剂的替代研究。代替在表面准备泡沫并将其向下注入油井，而是将其注入地下，可以通过在井下用发泡剂使多孔介质饱和来“现场”形成泡沫。本研究中的发泡剂由阴离子表面活性剂十二烷基硫酸钠（SDS），并通过添加1000 ppm PAM和不同浓度的二氧化硅纳米颗粒（NPs）使整个溶液稳定。然后可以按惯例通过追逐水推动形成的泡沫，并提高采油率。NP浓度越高，最初的泡沫稳定性就越高，因为更多的NP参与了气泡的增强。还研究了原位泡沫形成以改善贫油油田中的碳储存。改变气体的注入速率和发泡剂的塞尺寸，以确定穿透之前的气体存储量。发现较低的流速更有利于泡沫的形成，而增加段塞的尺寸对储层中的气体储存性几乎没有影响。然后可以按惯例通过追逐水推动形成的泡沫，并提高采油率。NP浓度越高，最初的泡沫稳定性就越高，因为更多的NP参与了气泡的增强。还研究了原位泡沫形成以改善贫油油田中的碳储存。改变气体的注入速率和发泡剂的塞尺寸，以确定穿透之前的气体存储量。发现较低的流速更有利于泡沫的形成，而增加塞的尺寸对储层中的气体储存性几乎没有影响。然后可以按惯例通过追逐水推动形成的泡沫，并提高采油率。NP浓度越高，最初的泡沫稳定性就越高，因为更多的NP参与了气泡的增强。还研究了原位泡沫形成以改善贫油油田中的碳储存。改变气体的注入速率和发泡剂的塞尺寸，以确定穿透之前的气体存储量。发现较低的流速更有利于泡沫的形成，而增加塞的尺寸对储层中的气体储存性几乎没有影响。改变气体的注入速率和发泡剂的塞尺寸，以确定穿透之前的气体存储量。发现较低的流速更有利于泡沫的形成，而增加塞的尺寸对储层中的气体储存性几乎没有影响。改变气体的注入速率和发泡剂的塞尺寸，以确定穿透之前的气体存储量。发现较低的流速更有利于泡沫的形成，而增加塞的尺寸对储层中的气体储存性几乎没有影响。