Application of Weak Gel Profile Control in Offshore Heavy Oilfield Development

Aimed at water cut going up quickly,the experiment of weak gel profile control is applied in well group.The research reveals that weak gel profile control combined with acidification can improve water injection profile,relief plane water flood conflict,change the flow direction of water flood,and enhance the water flooding effect obviously.Furthermore,the research results also reveal that if the major producing zone is the main water producing zone before injecting weak gel,the water injection needs be optimized during commingling weak gel injection,so as to avoid lack of water injection in the main producing zones results in the decreasing of formation pressure and influence the oil well yields.