Methods of increasing hydrocarbon production from subterranean formations

摘要

The present invention relates to a method of treating a carbonate-containing subterranean formation to increase the production of hydrocarbons therefrom. The subterranean formation is contacted with an aqueous solution of a composition represented by the formula: or wherein a is a whole number or fraction thereof in the range of from about 4 to about 18; wherein b is a whole number or fraction thereof in the range of from about 0 to about 30; wherein c is a whole number or fraction thereof in the range of from about 0 to about 3; wherein d is independently a whole number or fraction thereof in the range of from about 0 to about 3; wherein e is a whole number or fraction thereof in the range of from about 1 to about 3; R is independently selected from the group consisting of hydrogen and a methyl group whereby mixtures containing both groups may result; and X+ is an exchangeable cation; and Z is a nucleophile containing species containing at least one member selected from the group consisting of oxygen and nitrogen wherein the nitrogen is in the form of NR1H wherein R1 is independently selected from the group consisting of hydrogen and methyl radicals or admixtures thereof whereby the composition is caused to be absorbed onto the solid surfaces present in the subterranean formation and substantially reduces the tendency of such surfaces from becoming water or hydrocarbon wet.