I have some experience in yield improving methods (water pumping for adjusting pressure, horizontally finished wells, and hydraulic fracking). Unfortunately, I have never used CO2 since we had plenty of water to supply the pressure improving operation. 

Hi Donaldo,

I've been modelling enhanced gas recovery (EGR), but I am guessing that the numerical method and physics are not a world away from EOR, so it may be useful if you are working on reservoir flow modelling. Our first paper models EGR using the finite element method (COMSOL Multiphysics) without formation water, and shows the effect of CO2 injection rate and physical dispersion on CO2-CH4 mixing. This is for a benchmark, horizontally layered reservoir geometry.

https://dx.doi.org/10.1016/j.energy.2016.04.120

We submitted a follow-up paper studying the role of well perforation depth and the effects of formation water on EGR, and are hoping to hear back on this within the next few weeks.

Best,

Milan.

Hi Milan,

thanks for your reply. I have obtained your article from the link and congratulations on the publication. I am going to read up and whatever I find to be relevant to my current research topic I will let you know.

Kind regards

Donaldo Ngada

M-Eng student

Hello Robert, 

Hoping all is well.

CO2 is normally chosen for EOR purposes due to its desired chemical properties that when mixed with oil promotes high oil recovery ( high displacement efficiency). But for the purpose of simply increasing the pressure, water on its own should be fine.

Thanks 

Donaldo Ngada

M-Eng student

Hi Donaldo.

Good to hear for the networking.

I am currently working for chemical flooding (Foam) using CO2 and N2. 

Hi Mohammed, 

Such a pleasure to know so.

At the current moment my research is focused on CO2-EOR for maximized production of crude oil. Though the plans are to improve on mechanisms, finding optimum parameters and explore swelling factor amongst others not mentioned, I am quite struggling in regards to the laboratory experiments I should really focus on, in order to proceed and obtain relevant findings. If you know of any please let me know. Another request would be of anything that could help set a solid direction to the future of my research for further relevance.

I have also thought of making use of N2 but yet is something to consider in the near future.

Be safe and keep in touch.

Kind regards

Donaldo Ngada

M-Eng student

Dear Donaldo,

We are performing geo-techno-economic simulations of CO2-EOR projects and clusters in the North Sea with our in-house developed simulator PSS IV. Our focus lies on integrating reservoir characteristics, such as uncertainties, into a techno-economic forecasting model. We include e.g. real options and portfolio analysis to simulate more realistic investment decisions under uncertainty.

Best regards,

Kris

Hi Donaldo:

As I mentioned in my original response, I work on Enhanced Gas Recovery rather than EOR. However, you seemed moderately interested at the time :) The upcoming article I mentioned in my prior response has just been published. This deals with the effect of connate (pore) water on EGR, i.e. gas production rate, time-of-breakthrough of CO2 at the gas production wells and final gas recovery. We use the same benchmark reservoir geometry as in our first article (dry reservoir without water) to more clearly highlight the water's influence on gas recovery and mass of CO2 sequestered.

Article Inclusion of Connate Water in Enhanced Gas Recovery Reservoi...

Take care and best of luck!

Milan.