http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104497995-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-585 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-58 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 |
| filingDate | 2014-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104497995-B |
| titleOfInvention | A kind of drilling fluid anti-calcium and anti-salt fluid loss additive and preparation method thereof |
| abstract | The present invention discloses a kind of drilling fluid anti-calcium and anti-salt fluid loss additive and preparation method thereof, by the methyl propane sulfonic acid of 2 acrylamide 2, acrylic acid, acrylamide and dimethyl diallyl ammonium chloride with m (methyl propane sulfonic acid of 2 acrylamide 2)：M (acrylic acid)：M (acrylamide)：M (dimethyl diallyl ammonium chloride)：M (initiator)：M (molecular weight regulator)=(40~60)：(6‑10)：(30~40)：(5~9)：(1~2)：(0.1~0.5) raw material and water of composition are made.The drilling fluid that preparation method of the present invention prepares is significantly increased with anti-calcium and anti-salt fluid loss additive molecular weight, so that its coating property, inhibition, heat endurance and salt resistance calcium contamination ability are greatly improved, and the drilling fluid can be greatly improved the rheological characteristic of drilling fluid with anti-calcium and anti-salt fluid loss additive, and the drilling fluid still has good temperature resistance effect with anti-calcium and anti-salt fluid loss additive at 150~180 DEG C. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108018032-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108018032-A |
| priorityDate | 2014-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.