http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109369848-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-585 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F226-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-887 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-512 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-512 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-02 |
| filingDate | 2018-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109369848-B |
| titleOfInvention | Functional temperature-resistant salt-resistant plugging agent and preparation method thereof |
| abstract | The invention provides a functional temperature-resistant and salt-resistant plugging agent, which comprises: functional acrylamide prepolymer, cross-linking agent, stabilizer, performance regulator, deoxidant and water; the functional acrylamide prepolymer is shown as a formula (I). The functional temperature-resistant and salt-resistant plugging modifier has low ground injection viscosity, controllable gelling time, high gelling strength, stable performance and excellent temperature-resistant and salt-resistant performance, and acts on 260000 mg.L at high temperature (90-140 ℃) or high salt (40000- ‑1 ，Ca 2+ 、Mg 2+ >3886mg·L ‑1 ) During oil deposit, the effective stabilization period is long, the good plugging strength can be maintained for a long time, obvious dehydration is not shown, the oil field development effect is obviously improved, and reliable technical support is provided for comprehensive treatment of precipitation and oil increment of high-water-cut oil fields in China. |
| priorityDate | 2018-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.