| abstract |
The present application discloses an oil-soluble super-heavy oil viscosity reducer and a preparation method and application thereof. The viscosity reducer has a structure shown in formula I. In formula I, x:y:z is 10-20:5-15: 1 to 5; R1, R2, R3 and R4 are independently selected from one of H and C1 to C5 alkyl groups, M is selected from one of H and C1 to C24 alkyl groups; n is independently selected from 1 to 5 an integer of ; a is independently selected from an integer of 0-20, b is independently selected from an integer of 1-41, and c is independently selected from an integer of 0-41. There is fluorine-containing styrene in the viscosity reducer, and the fluorine in fluorine-containing styrene forms a stronger hydrogen bond with the colloid and asphaltene, so that it has a strong dispersing and stabilizing effect on the colloid and asphaltene; And through the polymerization with acrylic monomer units and acid anhydride monomer units, the three form a synergistic effect, which improves the viscosity reduction rate of super heavy oil, improves the temperature resistance and aging resistance of the viscosity reducer, and the viscosity reducer. The viscosity reduction effect is stable. |