Abstract

The report brings out the main points of hydrogeo-chemical characteristics of Mixen undergroundwater layers at Dai Hung oil field. At this site, water often contains a lot of mineralizers (over 20 g/l) with Cl-Na, Cl-Ca chemical type. They are distributed unclearly on surface and in depth. The present of micro-elements shows that the exchanging. Therefore the process of concentration and preservation of oil becomes convenient.