| abstract |
The invention relates to a temperature-resistant and salt-resistant black liquor phenolic gel profile control agent and a preparation method thereof, and relates to the technical field of oil and gas field profile control agents. The gel profile control agent comprises: alkali process cotton pulp black liquor, phenol, formaldehyde and polypropylene Amide, the mass ratio of alkali process cotton pulp black liquor and phenol is 2:1～1:1; the molar ratio of phenol to formaldehyde is 3.5～4:1; the mass ratio of alkali process cotton pulp black liquor and polyacrylamide is 10 ~15:1; during preparation, the alkali process cotton pulp black liquor and formaldehyde are added alternately to the molten phenol to obtain a resin, which is then reacted with a polyacrylamide solution to form a gel. The present invention directly adopts cotton pulp black liquor as raw material to prepare composite gel resin, which is energy-saving and environmentally friendly, low in raw material cost and cost saving. new ideas. |