http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111087536-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-588 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 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/C08F226-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-588 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-512 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-20 |
| filingDate | 2018-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111087536-B |
| titleOfInvention | Temperature-resistant salt-resistant viscoelastic polymer gel microsphere, profile control agent, and preparation method and application thereof |
| abstract | The invention relates to a temperature-resistant salt-resistant viscoelastic polymer gel microsphere and a profile control agent as well as a preparation method and application thereof, and mainly solves the problem that in the prior art, polymer microspheres generally only have a profile control effect on a medium-high permeability oil reservoir but are difficult to have a mobility control effect on a low permeability part of the oil reservoir. The invention adopts the technical scheme that the polymer gel microsphere comprises the gel microsphere and a polymer coated on the microsphere, wherein the gel microsphere is a cross-linked polymer containing an acrylamide structural unit, and the polymer is a water-soluble polymer containing the acrylamide structural unit, so that the problem is better solved, and the prepared temperature-resistant salt-resistant viscoelastic polymer gel microsphere profile control and flooding system is directly used for the field application of improving the recovery ratio of high-temperature high-salt oil reservoir tertiary oil recovery such as deep profile control and flooding, oil displacement and the like after being compounded with other oil field chemicals. |
| priorityDate | 2018-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 140.