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The Results of Experimental Research of the Effect of Inorganic Acids on Zeolite of Collectors of Bolshekhetskaya Depression
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Tyumen 2017, Mar 2017, Volume 2017, p.1 - 4
Abstract
In the work the analysis of the material composition formation of rocks BU 15 of polar retinue of Pyakyakhinskoye field. It is established that zeolites predominate in the middle part of the section of polar retinue, they form a poikilitic cement. Laboratory studies have shown that the interaction of zeolite rocks with inorganic acids leads to an undesirable gelling of reaction products. This contributes to the blockage of the pore channels and a sharp decrease in permeability for reservoir fluids. The results of filtration experiments showed that permeability decreased to 350 times after processing of hydrochloric acid. Based on cores of data, it is determined that inexpedient the use of strong inorganic acids on zeolite-bearing rocks due to for the formation of hydrated gel-like structures in the rock, on the other hand, treatment with hydrochloric acid this rocks can be used for insulation of water inflows into the mining process.