Experimental Investigation of the Effect of Preformed Particle Gel Size and Concentration, and Permeability of Porous Medium on Residual Factor and Residual Resistance Factor

Document Type : Research Paper

Authors

1 پژوهنده

2 مدیر گروه

3 Head of Improved Oil Recovery methods/RIPI

4 مدیر طرح

5 senior eng. in IOOC

10.22078/pr.2024.5112.3267

Abstract

Unwanted water production is a critical problem in productive oil and gas reservoirs. Corrosion of facilities and reduction of oil relative permeability are consequences of water production. Preformed particle gel (PPG) has been used to control water production and increase sweep efficiency since 2007. There are several parameters which affect the performance of PPG such as stability at reservoir condition, salinity of makeup solution and PPG particle size and concentration. As a conventional method, the slim tube test can simulate the effective mechanisms of gel injection of preformed particles into the reservoir. This research investigates the key parameters of injection of preformed gel particles into the reservoir by slim tube test. For this purpose effect of gel size (3 size), gel concentration (3 conc.), slim tube permeability (4 perm.) and injection rate (3 rate) has been investigated. The results have shown that effect of gel size in related with gel retention in porous media and with increasing gel concentration, breakout pressure will be increased and as a results residual resistance factor increase. Also, injection pressure increased when slim tube permeability decreased. This research overally show that gel particle breaking is the main mechanism of gel injection into porous media.

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Journal of Petroleum Research
Volume 35, 1404-1 - Serial Number 140
Special Issue on the Development of the Hydrogen TechnologyChain
May and June 2025

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