Model Investigation of Low Salinity Brine Injection on Gas-Condensate Recovery in a Sandstone Reservoir: Effect of Calcium and Sodium Ions


Authors : Alexander Ofori Mensah; Richard Amorin; Harrison Osei

Volume/Issue : Volume 7 - 2022, Issue 8 - August

Google Scholar : https://bit.ly/3IIfn9N

Scribd : https://bit.ly/3R16oon

DOI : https://doi.org/10.5281/zenodo.7098418

There are many technical challenges associated with the recovery of valuable condensates from gas-condensate reservoirs. While some condensates are immobile far from the production well, others can accumulate close to the producer wellbore area. As a result, such valuable condensates are either not produced or, in some cases, their accumulation might choke the production well, lowering gas productivity. Maintaining reservoir pressure has long been a means of dealing with this problem. This, however, only functions as a temporary solution because the drop-out and immobile condensate production continues unabated. In this study, the effect of injecting brine into a gas-condensate reservoir at various concentrations was examined using a numerical simulation approach. It was found that changing two cations (Ca2+ and Na+ ) concentrations could improve gas-condensate recovery at an injection rate of 490.8 m3 /d (3000 bbl/d). According to this simulation research, the optimised range of sodium ion concentration fell between 0.013 and 0.026 mol/L, with 0.013 mol/L (300 ppm) being the optimum value. Additionally, the low salinity brine injection should have a Ca2+ content greater than 0.0029 mol/L (116 ppm). It was also observed that changes in salinity had a negligible influence on gas recovery. Thus, if recovering lost condensate is of priority, then this recovery strategy is highly recommendable.

Keywords : Condensate Banking; Low Salinity Water Injection; Ion Exchange; Condensate Recovery, Reservoir Geochemistry

CALL FOR PAPERS


Paper Submission Last Date
28 - February - 2023

Paper Review Notification
In 1-2 Days

Paper Publishing
In 2-3 Days

Video Explanation for Published paper

Never miss an update from Papermashup

Get notified about the latest tutorials and downloads.

Subscribe by Email

Get alerts directly into your inbox after each post and stay updated.
Subscribe
OR

Subscribe by RSS

Add our RSS to your feedreader to get regular updates from us.
Subscribe