http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107759729-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F226-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F226-10 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/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-10 |
| filingDate | 2016-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107759729-B |
| titleOfInvention | Temperature-resistant salt-resistant tackifier for drilling fluid, preparation method and application |
| abstract | The invention discloses a preparation method and application of temperature-resistant salt-resistant viscosity-increasing agent for drilling fluid. The tackifier is obtained by polymerizing raw materials comprising the following components: the total weight of the components is 100 percent: 30-50 wt% of acrylamide; 25-35 wt% of N-vinyl pyrrolidone; 25-35 wt% of reactive 4-vinyl-1- (3-sulfopropyl) pyridine inner buzzy salt monomer; sodium chloride; initiator the initiator is a mixture of an oxidizing agent, a reducing agent and 2, 2-azobis (2-imidopropyl) dihydrochloride. The viscosity of the tackifier solution prepared by the invention is kept good, and the viscosity of the solution is not changed greatly after high-temperature aging, so that the tackifier provided by the invention has good temperature resistance and salt tolerance, and can be applied to a tackifier of petroleum drilling operation fluid under high-temperature and high-salt geological conditions. |
| priorityDate | 2016-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.