The main function of flexible gels is mainly in the middle and late stage of oilfield production. Due to the different and complex geological structure, it is necessary to provide auxiliary products in profile control, in order to increase the efficiency of water flooding in the middle and late stage of oilfield production. Flexible gel particle profile control agent is a kind of economic and effective plugging agent. It is formed by polymer solution and appropriate crosslinking agent with spatial network structure. It has excellent viscosity in water and polar groups in linear molecular chain. It can react with multivalent metal ions or organic groups to form gel with cross-linked products. Its viscosity is greatly increased and its fluidity is lost The application of profile control in oilfield has good effect.
Its main product features are as follows:
It can effectively block the dominant channel, balance plane water drive and expand sweep volume;
The flexible gel has low cost and long validity;
High temperature resistance, salt resistance, easy deformation, shear resistance;
It has high gelling strength, good plugging performance and enhanced deep profile control and flooding ability.
Technical standard of flexible gel particle profile control agent
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