http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106565901-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 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/C08F222-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-32 |
| filingDate | 2016-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106565901-B |
| titleOfInvention | Cross-linked high molecular weight polymer coating agent for water-based drilling fluids |
| abstract | The present invention relates to a cross-linked high-molecular-weight polymer coating agent for water-based drilling fluid, the coating agent is a copolymer, and the copolymer comprises acrylamide monomer, 2-acrylamide-2-methylpropanesulfonic acid The acid monomer and the cross-linking agent are prepared by reacting raw materials; wherein, the weight of the copolymer after post-processing, purification and drying is 100%, and the mass fraction of the acrylamide monomer used for the reaction is 50-95%. %, the mass fraction of the 2-acrylamide-2-methylpropanesulfonic acid monomer used for the reaction is 5-50%; the mass concentration of the cross-linking agent used for the reaction is 5-500 ppm. The present invention shows through experiments that the viscosity of the solution of the cross-linked polymer acrylamide and the copolymer of 2-acrylamide-2-methylpropanesulfonic acid cannot be changed by more than 20% after being heated at 180° C. for 16 hours. And can significantly improve the recovery rate of drill cuttings, showing excellent coating performance. |
| priorityDate | 2015-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.