AQUEOUS SOLUTION AND METHOD FOR USE THEREOF

Aqueous compositions contain hydrochloric acid at a concentration between 8 wt% and 28 wt% inclusive. The amino acid;hydrochloric acid mole ratio may be between 0.2 and 1.5. Sufficient water is present to dissolve the hydrochloric acid and the amino acid. Such compositions have utility as retarders...

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Main Authors JIANG, LI, LECERF, BRUNO, HUTCHINS, RICHARD D, JONES, TIMOTHY G. J, ZIAUDDIN, MURTAZA, HE, JIAN
Format Patent
LanguageEnglish
French
Published 23.08.2022
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Summary:Aqueous compositions contain hydrochloric acid at a concentration between 8 wt% and 28 wt% inclusive. The amino acid;hydrochloric acid mole ratio may be between 0.2 and 1.5. Sufficient water is present to dissolve the hydrochloric acid and the amino acid. Such compositions have utility as retarders for acid compositions employed in the stimulation of subterranean formations. Slowing the reaction between the acid and formation helps maximize formation permeability and productivity. Il est décrit des compositions aqueuses qui contiennent de lacide chlorhydrique à une concentration comprise entre 8 % en poids et 28 % en poids inclus. Le rapport moléculaire acide aminé/acide chlorhydrique peut être compris entre 0,2 et 1,5. Une quantité suffisante deau est présente pour dissoudre lacide chlorhydrique et lacide aminé. Ces compositions sont utiles en tant que retardateurs pour les compositions dacides utilisées dans la stimulation de formations souterraines. Ralentir la réaction entre lacide et la formation contribue à maximiser la perméabilité et la productivité de la formation.
Bibliography:Application Number: CA20142865855