http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109503781-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2003-2227 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-405 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F292-00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F228-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F292-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 |
| filingDate | 2017-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109503781-B |
| titleOfInvention | Inorganic-organic polymer oil well cement retarder, and preparation method and application thereof |
| abstract | The application provides an inorganic-organic polymer oil well cement retarder, a preparation method and application thereof, wherein the method comprises the following steps: providing an aqueous monomer solution comprising itaconic acid, 2-acrylamido-2-methylpropanesulfonic acid, and water; and mixing the monomer aqueous solution with an inorganic non-metallic material and a silane coupling agent, and reacting in the presence of an initiator to obtain the inorganic-organic polymer oil well cement retarder. According to the invention, inorganic non-metal particles are introduced on the basis of the existing organic polymer retarder, and the silane coupling agent enables the polymer to have a micro-crosslinking structure, so that the high temperature resistance of the polymer retarder can be obviously improved due to the comprehensive effect of two factors, and the problem of reduced retardation effect caused by easy degradation, functional group hydrolysis, desorption and the like of the existing organic polymer under the conditions of high temperature and strong alkali is solved. The oil well cement retarder has the advantages of moderate raw material price, simple preparation process and wide applicable temperature range. |
| priorityDate | 2017-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.