Patent ID: 11912936
Assignee: DORF KETAL CHEMICALS FZE
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E | IPC C  E

Claim 0:
1. An aqueous modified acid composition comprising:
an acid;
a first component comprising an amino acid having a single carboxylic acid group, the amino acid selected from the group consisting of lysine, glycine, alanine, methionine, histidine, arginine, serine, proline, cysteine, threonine, and selenocysteine;
a second component having a structure comprising an amine group and a sulfonic acid group;
wherein said first component and said acid are present in a molar ratio ranging from 1:3 to 1:12.5, and
wherein the aqueous modified acid composition acidizes or stimulates hydrocarbon-containing dolomite formations and hydrocarbon-containing limestone formations to create wormholes therein.