Study on shear strength recovery performance of the organic gel profile control agent

Based on the dynamic shear test, shear recovery performance of organic gel profile control agent was studied and the influence of polymer concentration, temperature and type of crosslinker on shear recovery performance was analyzed by measuring the storage modulus, loss modulus and phase angle of gel system under different conditions. The results showed that:in determining the stress, as the polymer concentration increased, the gel-point frequency of the gel moving to the low frequency;at the same concentration and storage time, the strength of organometallic crosslinking profile control agent is greater than the strength of the organic phenolic crosslinking profile control agent;to the same gel system, when the polymer cross-ratio is constant, the high concentration system have a good shear strength recovery performance;for JS and RFJL gel systems, the temperature increase makes the shear strength recovery performance of the system low down;compared with the resin crosslinked gel, the organometallic crosslinked gel has a better shear strength recovery ability.