Abstract: A process for the removal of acid gas from fluid produced from a subterranean formation into a subterranean well includes the steps of producing fluid from the subterranean formation into an area selected from the group consisting of the subterranean well, a production tube in the well, an annular space defined therebetween, and combinations thereof so as to produce a production fluid containing acid gas; and introducing an aqueous solution of an active ingredient selected from the group consisting of Na2CO3, NaOH, and combinations thereof into the area so as to contact the aqueous solution with the fluid as the fluid travels from a down-hole production tube to a surface well facility so as to contact the active ingredient with the acid gas and thereby remove the acid gas from the production fluid.