http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109097008-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-12 |
| filingDate | 2018-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109097008-B |
| titleOfInvention | Filtrate reducer for soil-phase-free high-density saturated salt water drilling fluid and preparation method thereof |
| abstract | The invention discloses a filtrate reducer for a soilless phase high-density saturated saline drilling fluid, which is a mixture with an interpenetrating copolymer network formed by a polymer A and a polymer B; wherein the polymer A is polymerized by starch and alkenyl monomers; the polymer B is formed by polymerizing an alkenyl monomer and an organic silicon monomer containing double bonds; in addition, the preparation method is simple, and the interpenetrating polymer network is prepared by mixing and stirring the mixed solution containing the polymer A and the mixed solution containing the polymer B which are obtained by pre-polymerization to form an interpenetrating polymer network, and then precipitating, washing, drying and crushing the interpenetrating polymer network by absolute ethyl alcohol; the fluid loss additive has moderate tackifying amplitude in a soilless phase high-density saturated saline drilling fluid system, obvious fluid loss reducing effect, good temperature and salt resisting effect and good suspension effect on a solid phase. |
| priorityDate | 2018-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 97.