http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112552894-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-32 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-602 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-72 |
| filingDate | 2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112552894-B |
| titleOfInvention | An emulsifier with ultra-high temperature resistance, low viscosity and low corrosion and an emulsified acid system containing the emulsifier |
| abstract | The invention discloses an emulsifier with ultra-high temperature resistance, low viscosity and low corrosion and an emulsification acid system containing the emulsifier. Including at least one viscoelastic surfactant; viscoelastic surfactant is prepared by quaternization reaction of fatty acid acylpropyl dimethyl amine and halogenated compound; or viscoelastic surfactant is long chain halogenated hydrocarbon and halogenated compound. The tertiary amine compound is prepared by quaternization reaction; or the viscoelastic surfactant is prepared by the reaction of the linking group generated by the reaction of fatty acid acylpropyl dimethyl tertiary amine with epichlorohydrin and alkylamine compounds. The preparation method of the invention is simple, the prepared emulsified acid is an acid-in-oil emulsion, and the emulsified acid has very excellent temperature resistance, stability, low viscosity, low frictional resistance, and slight corrosion to metal pipes. The stable time is not less than 7 hours, which can effectively reduce the rate of acid-rock reaction in high temperature and deep wells, and reduce the corrosion rate of acid solution to pipes. |
| priorityDate | 2019-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 77.