oa Laboratory Evaluation of a New Selective Water Control Treatment and its Implementation in a North Sea Well

In a French-German cooperation, a new weak gel consisting of a nonionic high-moIecular- weight polysaccharide and an organometallic activator was developed for harsh reservoir conditions. Gel formation is delayed in surface conditions, but a gel progressively forms at reservoir temperature and selectively reduces water production, with Iimited effect on oil flow.