| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af7c9c966acd2ef7eca105d82d8d0991 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-584 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-584 |
| filingDate |
1979-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1981-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73c99c12b9eb28699938a35e23db9525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_24e06b23543150f2bb154ff5b46e5b7d |
| publicationDate |
1981-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4274488-A |
| titleOfInvention |
Cosurfactant in preflush for surfactant flood system |
| abstract |
In a post-primary oil recovery process involving the sequential addition of a saline preflush, a surfactant system comprising a surfactant, a cosurfactant and brine, the improvement comprising the addition of cosurfactant to the preflush. If desired, cosurfactant can also be added to a subsequent injected mobility buffer. The resulting system gives extraordinarily high recovery of oil. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009078414-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4458760-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4597442-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4683951-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009159288-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4862963-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4502541-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4561501-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4817715-A |
| priorityDate |
1979-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |