Sılıcon Based Gel to Shut-Off of Water in the Well-Bore

Abstract:

The quality of gel - based silicon, which forms an insulating content to prevent water and sand in oil and gas wells, have been improved. Based on the reaction between the liquid glass and hydrochloric acid, the optimal concentration of the initial reagents for the formation of the gel process was determined. The rheology, initial and final setting time of the silicon based gel, and the temperature dependencies of the gel forming process were also studied by adding 0.1-1.0% (mass ratio) of urea as cross-linking to the Na2SiO3/HCl solution. At the same time, the impact of the obtained gel of the permeability of the rock pores was determined and the filtration characteristics were studied. It has been determined that with 0.1-0.8% mass concentration of the urea added to the Na2SiO3/HCl solution, the setting time of the gel could be regulated according to the well-layer regime. The resulting silicone-based gel can be used as an injection solution that can set in 3-22 hours in oil and gas wells between the temperature of 20-80 °C.

• Periodical: Advanced Materials Research (Volume 1175)
• Pages: 27-34
• DOI: https://doi.org/10.4028/p-o15z58
• Online since: February 2023
• Authors: Maharat Huseynov, Shamo Tapdiqov*, Fariz Ahmad, Sevda Kazimova
• Keywords: Additive, Silicium Based Gel, Urea, Water Shut-Off, Well Bottom Zone

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