| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b1a8f92c331b255c0b42b829ccd90cd0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-502 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-502
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-32 |
| filingDate |
1971-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1973-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32bc196e471402ef23fec12e32fa013d |
| publicationDate |
1973-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3779316-A |
| titleOfInvention |
Secondary recovery of petroleum |
| abstract |
This invention relates to the secondary recovery of petroleum, and in particular, involves a process for reducing the amount of water recovered from a producing well in a water flooding process for recovering petroleum from a subterranean oil-bearing formation. This reduction in water is accomplished by introducing a stable liquid dispersion of a water soluble anionic vinyl addition polymer and a water soluble cationic polymer. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0130732-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011237468-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005098320-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4617132-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7188673-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010069607-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2179129-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0197684-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004177957-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0197684-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2179129-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2204431-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004084181-A1 |
| priorityDate |
1971-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |