http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113563508-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-281 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F226-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-10 |
| filingDate | 2021-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113563508-B |
| titleOfInvention | A high-temperature-resistant and low-viscosity fluid loss reducer |
| abstract | The invention relates to a high-temperature-resistant and low-viscosity fluid loss reducer, which belongs to the technical field of petrochemical materials. The present invention introduces all-aromatic rings and distorted non-coplanar biphenyl structures to make the molecular chains of polymers more easily entangled and improve the solubility and stability of polymers without the need to synthesize polymers with too long molecular chains. The viscosity of the drilling fluid has little effect; in the drilling fluid, it can be adsorbed on the surface of the clay through strong electrostatic action, which can inhibit the expansion of clay particles and stabilize the colloid, while the other side of the molecular chain can form a layer of viscoelastic macromolecules on the clay The adsorption film can not only restrain the flow of water molecules, reduce the permeability, but also effectively prevent the intrusion of metals, thereby protecting clay particles in high-salt and high-calcium environments and improving their ability to resist salt intrusion and calcium intrusion; suitable for The fluid loss control of drilling fluid at various densities has strong salt resistance and inhibition and has a certain dilution effect, which can effectively control the fluid loss control performance of drilling fluid under high temperature conditions. |
| priorityDate | 2021-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.