http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112375553-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_093755491d2a447a33452bcc2bb5accd |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-584 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-584 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-02 |
| filingDate | 2020-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fb09e86ccb239dab14318e810c79b94f |
| publicationDate | 2021-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112375553-A |
| titleOfInvention | A kind of preparation method of high-efficiency enhanced oil recovery surfactant |
| abstract | The invention relates to the technical field of surfactant preparation, in particular to a preparation method of a surfactant for high-efficiency enhanced oil recovery; the prepared surfactant has an isoelectric point; its pH value is lower than the isoelectric point. The positive charge in the solution shows the performance of cationic surfactants; while the negative charge in the solution with a pH value higher than the isoelectric point shows the properties of anionic surfactants; it has a wide range of pH values. It has good surface activity; in addition, it has good compatibility with other types of surfactants, and can be compounded with almost all other types of surfactants to produce synergistic effects and effectively reduce the difficulty of oil recovery ; At the same time, it has ultra-low interfacial tension, the interfacial tension reaches 1.0×10 ‑3 mN/m; in addition, it is non-toxic, does not damage the formation, and has good compatibility, and can be used in combination with other chemical oil displacement agents, which significantly improves the The recovery factor of crude oil. |
| priorityDate | 2020-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.