http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112759722-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F261-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-467 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-065 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F257-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-467 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-08 |
| filingDate | 2019-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112759722-B |
| titleOfInvention | Fluid loss agent, preparation method and application thereof |
| abstract | The embodiment of the application provides a fluid loss agent, a preparation method and application thereof, and belongs to the technical field of oil and gas field well cementation. The fluid loss agent provided by the embodiment of the application comprises: comonomer, initiator, potassium formate and water; the comonomers include: the high-temperature resistance and the steric hindrance of the fluid loss agent are enhanced by adding the sodium p-styrene sulfonate and the isopentenol polyoxyethylene ether, the polyvinyl alcohol and the styrene have good cross-linking effect, and the polyvinyl alcohol and the styrene can be connected with a molecular chain formed by the sodium p-styrene sulfonate and the isopentenol polyoxyethylene ether to form a net structure, so that the stability of the fluid loss agent is enhanced. |
| priorityDate | 2019-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.