http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107501456-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F212-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-38 |
| filingDate | 2017-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107501456-B |
| titleOfInvention | A kind of preparation method of drilling fluid cationic sealing agent |
| abstract | The invention discloses a kind of drilling fluid preparation methods of cationic sealing agent, with styrene, butyl acrylate, dimethyl diallyl ammonium chloride is raw material, cationic sealing agent is prepared by emulsion polymerisation process, it is raw materials used by following weight: 30 ~ 90 parts of styrene, 15 ~ 75 parts of butyl acrylate, 15 ~ 75 parts of dimethyl diallyl ammonium chloride, 30 ~ 120 parts of deionized water.The present invention causes monomer by initiator and polymerization reaction occurs, obtain a kind of macromolecular chain cationic sealing agent, a small amount of product is added in drilling fluid just can effectively reduce drilling fluid filtration and casting bed depth of invasion, realizes the closure to underground hole crack, ensures drilling safety. |
| priorityDate | 2017-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.