http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111500274-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-725 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-74 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-74 |
| filingDate | 2019-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111500274-B |
| titleOfInvention | Organic zirconium crosslinking agent, crosslinking acid sand-carrying fluid and preparation method |
| abstract | The invention discloses an organic zirconium crosslinking agent, a crosslinking acid sand-carrying fluid and a preparation method, belonging to the field of oil field chemistry. The organic zirconium crosslinking agent is obtained by reacting the following components in mass percentage: inorganic zirconium salt 6%-9%, organic acid 3%-6%, organic ligand 10%-15%, and the balance is water; inorganic zirconium The salt is zirconium oxychloride and/or zirconium chloride; the organic acid is sulfamic acid and oxalic acid or sulfamic acid. The organic zirconium crosslinking agent is applied to the cross-linked acid sand-carrying liquid, so that the cross-linked acid sand-carrying liquid can be cross-linked to form a gel with good high temperature resistance, strong shear resistance and excellent viscosity, which ensures that the cross-linked acid carries the sand. The viscosity, sand-carrying effect, and fracturing effect of the sand fluid make it suitable for acid fracturing operations above 150°C and reservoirs with a depth greater than 3000m. |
| priorityDate | 2019-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.