http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107311339-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2303-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2301-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-444 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5236 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-04 |
| filingDate | 2017-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107311339-B |
| titleOfInvention | Method for treating high-salinity oil extraction wastewater for polymer preparation and reinjection in oil field |
| abstract | The invention belongs to the field of wastewater treatment, and discloses a method for treating high-salinity oil extraction wastewater for polymer injection and reinjection in an oil field. The method is characterized in that: (1) by CO 2 And (3) aerating to enable calcium, magnesium and other ions in the wastewater to form precipitates such as calcium carbonate, magnesium carbonate and the like, so as to reduce the mineralization degree of the wastewater. Compared with the addition of a flocculating agent or a coagulant aid, the cost is greatly reduced. By CO 2 Aeration is carried out, so that the gas is fully contacted with the wastewater, and the flocculation effect is improved; (2) by O 3 Aeration, not only has the sterilization function, but also can oxidize Fe 2+ High reducing ion; (3) after the oil extraction wastewater is treated, the oil extraction wastewater is added into a polymer reinjection well, so that the high-salinity wastewater can be recycled, the cost is saved, and the environment is protected. |
| priorityDate | 2017-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 74.