http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110922951-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-512 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5083 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-512 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F224-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 |
| filingDate | 2019-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110922951-B |
| titleOfInvention | Coated microgel particle profile control agent and preparation method thereof |
| abstract | The invention discloses a coated microgel particle profile control agent and a preparation method thereof, wherein the preparation method comprises the following steps: stirring an aqueous solution containing acrylamide monomers, a cross-linking agent, a stabilizer and an initiator and a hydrophobic nano material at a high speed to form a dry powder coating pre-reaction system, and carrying out free radical polymerization and drying on the pre-reaction system to obtain the coated microgel particle profile control agent. The coated microgel particle profile control agent has the solid content close to 100 percent, the outside of a gel core is coated with a hydrophobic nano material, and the average particle size of the particles is in a micron order. The coated microgel particle profile control agent has surfactant responsiveness, does not expand in clear water, and expands in a surfactant solution. By utilizing the responsiveness, the delay and control of the expansion time of the coated microgel particle profile control agent can be realized in profile control operation, and the deep profile control of an oil reservoir is realized. The preparation method of the coated microgel particles has reliable principle, simple and convenient operation and wide market prospect. |
| priorityDate | 2019-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.