Range of polymers for WSO & CC
A broad range of chemicals called Powelgel™ was created to perform WSO and CC in most of the formations including those high salinity and high temperature. Some of these products may be used in North Sea.
Powelgel™ products descriptions :
 - Size-controlled microgel species (adapted to large range of permeabilities)
 - Delayed gels environmentally-friendly (free of toxic cross linkers)

Powelgel™ products specificities:
 - Temperature stability: from 30°C up to 165°C,
 - Salinity up to 200 g/L TDS,
 - Withstanding the presence of H2S, Acids,
 - Excellent mechanical stability at high shear rate (up to 1,000,000 sec-1)
 - High efficiency in heterogeneous/Multi-layer formations
Proven track records have been obtained in a wide variety of field situations (i.e. gas wells, water-flooded wells, heavy-oil horizontal wells, offshore gravel-pack wells…).  The design of Poweltec WSO and CC’ treatments combines near-wellbore reservoir simulations and laboratory core-flood experiments.
Payout of WSO treatments is often achieved within 1 month.  Plots of Cumulative oil vs. Cumulative water production enables a good evaluation of additional oil produced after the treatment.