http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103087689-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3bf27220cb61b692aa793cb1487ddfbf |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 |
| filingDate | 2013-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73face89296ffaf963992d9ed19da833 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56b3565c712ab1aa985cc79c0f5d5b98 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ecc5f9d54e61efcbf9820cbcce4eb9d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2990eae8ea6b00923f40c73a742d5274 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_43ede0fb289748ee9b32409a4de397ea http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_356d229d5c2bbd5e3b21383957ced67e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33ea9d90f71544e0d0ec634e99643cf3 |
| publicationDate | 2015-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103087689-B |
| titleOfInvention | High temperature resistance and viscosity reduction agent for water-based drilling fluid |
| abstract | The invention relates to a water-based drilling fluid treatment agent in the chemical engineering field, and concretely relates to a high temperature resistance and viscosity reduction agent for a water-based drilling fluid. The viscosity reduction agent is a dual-component mixture comprising a first component and a second component, the first component is a binary or ternary copolymer prepared through using acrylic acid, 2-acrylamide-2-methylpropanesulfonic acid and maleic anhydride as monomers, the second component is polyamine salt prepared through using one or more of dimethylamine, ethanolamine, diethanolamine, triethanolamine and ethanediamine and epichlorohydrin, and the mass ratio of the first component to the second component is 55-85%:15-45%. The viscosity reduction agent prepared in the invention has a high temperature resistance, and can be used for the viscosity reduction in the well drilling and cementing processes of various water-based drilling fluids. |
| priorityDate | 2013-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.