| abstract |
The present invention relatestoa process to treat a subterranean formation by introducing a composition containing between 1 and 40 wt% on total weight of the composition of a chelating agent selected from the group of glutamic acid N,N- diacetic acid or a salt thereof (GLDA), aspartic acid N,N-diacetic acid or a salt thereof (ASDA), and methylglycine N,N-diacetic acid or a salt thereof (MGDA) into the formation, wherein the process comprises a soaking step. |