http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113372489-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-887 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-882 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-512 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5083 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-40 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F216-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-512 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 |
| filingDate | 2021-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113372489-B |
| titleOfInvention | Temperature-sensitive delayed water shutoff agent and preparation method and application thereof |
| abstract | The invention relates to the technical field of oil exploitation, in particular to a temperature-sensitive delay type water shutoff agent and a preparation method and application thereof. The method comprises the following steps: sequentially adding acrylamide monomers, acrylic monomers, cationic monomers, temperature-sensitive delayed cross-linking agents and the like into deionized water, uniformly stirring, and initiating a polymerization reaction at 5-6 ℃ to obtain a first product solution; sequentially adding a temperature-sensitive compatible cross-linking agent, a diluent, a pore-forming agent, an acrylamide monomer, an acrylic acid monomer, a cationic monomer, a temperature-sensitive delayed cross-linking agent and the like into deionized water, stirring and mixing uniformly, then adding into the first product solution, stirring and mixing uniformly, and initiating a polymerization reaction at 20-25 ℃ to obtain the temperature-sensitive delayed water shutoff agent. The temperature-sensitive delay type water shutoff agent prepared by the invention has the characteristics of convenient injection, high-temperature self-gelling, quick gelling and high gelling viscosity. |
| priorityDate | 2021-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 134.