| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_802cb425a297a0766bc7d8cdc2f03898 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2800-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-594
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-164
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-588 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-588
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-16 |
| filingDate |
1982-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1984-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f24427018e3731aa95e7f6cedf4b131 |
| publicationDate |
1984-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4431778-A |
| titleOfInvention |
Process for secondary recovery |
| abstract |
Hydrocarbons are recovered from a subterranean hydrocarbon-bearing formation penetrated by an injection well and a production well by displacing hydrocarbons toward the production well using a drive fluid such as water thickened with a copolymer of acrylamide and vinyl sulfonic acid or salts thereof or with a copolymer of acrylamide and styrene sulfonic acid or salts thereof as well as these same copolymers alkoxylated with an alkylene oxide. Optionally, the drive fluid can be saturated with carbon dioxide, nitrogen, natural gas or mixtures of these gases. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10385258-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10982520-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10385257-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10012064-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10344204-B2 |
| priorityDate |
1979-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |