The presence of oilfields, close to cities, forests, rivers and seas, has become a crucial problem regarding its effect on development and preservation of the nature as well as human being care. For that reason, it is therefore vital to oil companies to tackle such problem and stop its negative proliferation. Control on such impact has to be taken in charge daily, by the setting up of stations able to collect data and to simulate it regularly. Aware of this imperative and important problem, researchers in this Department laboratory are involved in projects dealing with many attempts in finding the way how to undertake and reduce such impact. Oil and gas water contents constitute also an important research topic in this laboratory. Evaluation of this impact is to define the limit of permeability damage during the water re-injection inside oilfield reservoirs..