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Acid compositions for the treatment of carbonate reservoirs with clay inclusions
Konferencja
Geopetrol 2010 : nowe metody i technologie zagospodarowania złóż i wydobycia węglowodorów w warunkach lądowych i morskich : międzynarodowa konferencja naukowo-techniczna : Zakopane, 20--23.09.2010
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Abstrakty
The choice of acid composition for the treatment of carbonate reservoirs, which include up to 40-60% of clay inclusions, must be in comprehensive research of the formulations' influence on the changes in the physico-chemical characteristics of the cores. It is established, that mineral acids quickly destroy the carbonate component of the reservoir and lead to a deterioration of rocks' filtration properties. Moreover, hydrochloric acid converts the clay component of rock into plasticine-like mass, which is guaranteed to help blocking the channels formed by dissolution during the development of a well after deviation. Additions of organic acids, ammonium-containing salts and high-atomic alcohols partially neutralize the influence of hydrochloric acid, but the amount of hydrochloric acid in the mixture should be minimal — no more than 3-5%.
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851--856
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tab., wykr.
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Bibliografia
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bwmeta1.element.baztech-12944e17-11c6-4fe0-99f8-620f8beb46f1