Polymer microsphere technology is a new profile control technology developed in recent years. Its advantages include less external influence, direct preparation with sewage, high temperature and high salt resistance, no viscosity, no pollution and low cost. The profile and flooding mechanism of polymer microsphere is that the cross-linked polymer microsphere is nano to the pore throat diameter of oil reservoir, and its initial particle size meets the requirements of "accessibility". After hydration and swelling, the microspheres can meet the particle size requirements of plugging the macropore throat, and have a certain strength to meet the requirements of "plugging" the formation macropore throat so as to turn the subsequent liquid flow. The microsphere is elastic, which can deform under a certain pressure and move forward to the deep part of the formation to meet the requirements that the modifying and flooding agent can enter the deep part of the formation and play a role.
Microsphere modifying and flooding agent can be rapidly dispersed in water and can be directly added on the injection water pipe line. It can be adjusted according to the injection temperature to realize the on-line profile control and displacement mode. According to the construction scale, the construction method of single pump with single well and single pump with multi well can be adopted. The utility model has the characteristics of simple equipment and convenient construction, and is especially suitable for the field construction in areas with harsh environment and offshore platform construction limited by site.
Scope of Application
Micron Gel Microspheres RMR-30M is suitable for medium permeability formation (1000-1500×10-3μm2), the use concentration is 2000-8000mg/L, and the plugging rate is 60%-76%.
Packaging and Storage
The product is packed in polyethylene plastic drums with a net weight of 200kg; Keep it in a cool, dry and ventilated place.
Safety Considerations
Avoid contact with eyes, skin and clothes, otherwise rinse with plenty of water. Refer to the safety data sheet (MSDS) for handling methods and hazard data.