| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_94b51d317764e2f4f1bbcb355b274c8b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-594
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-588
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-164 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-594
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-588
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-584 |
| filingDate |
2019-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a29dec18f04e8f3828017ae2d88b35e |
| publicationDate |
2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10876040-B2 |
| titleOfInvention |
Stability improvement of foams for enhanced oil recovery applications using polyelectrolytes and polyelectrolyte complex nanoparticles |
| abstract |
Polyelectrolyte nanoparticles are generated to stabilize foam for use in enhanced oil recovery. Stability is further enhanced by optimizing pH and a ratio of polycationic and polyanioinic materials, resulting in stronger and longer lasting foams in the presence of crude oil. Use of these nanoparticles results in negligible damage to formation permeability. |
| priorityDate |
2015-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |