Patent ID: 11959012
Assignee: TIANJIN BRANCH OF CHINA NATIONAL OFFSHORE OIL CORPORATION LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 6:
7. The dispersed particle gel system of claim 1, wherein the content of the cross-linking agent is 60-300 parts by weight, the content of the chelating agent is 100-750 parts by weight, and the content of the modified nano-graphite inducer is 2-20 parts by weight; based on 100 parts by weight of the temperature-resistant and salt-resistant functional polymer,
the temperature-resistant and salt-resistant functional polymer is selected from a binary copolymer of acrylamide and 2-acrylamide-2-methyl propane sulfonic acid;
the cross-linking agent is an aldehyde cross-linking agent and/or a phenolic cross-linking agent;
the chelating agent is disodium ethylene diamine tetraacetate and/or tetrasodium ethylene diamine tetraacetate; and
the water is clear water or treated oil field reinjection sewage.