http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113683354-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2201-50 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B14-026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B22-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-163 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-508 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B14-383 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B14-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-508 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B14-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B22-08 |
| filingDate | 2021-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113683354-B |
| titleOfInvention | A kind of oil well cement with high temperature resistance and strength recession inhibition and its preparation method and application |
| abstract | The invention discloses an oil well cement with high temperature resistance and strength recession inhibition, a preparation method and application thereof, and belongs to the technical field of cementing engineering of petroleum and natural gas engineering. 30.0-50.0 parts of quartz sand, 10.0-20.0 parts of high temperature strength decay inhibitor, 3.0-5.0 parts of whisker material, 0.5-2.0 parts of modified carbon nanotubes, 1.0-3.0 parts of dispersant, 2-4 parts of high temperature stabilizer , 1.0-3.0 parts of high temperature fluid loss reducer, 3.0-5.0 parts of high temperature retarder and 65.0-75.0 parts of water. The high-temperature strength recession-inhibiting oil well cement of the invention has a 90-day compressive strength of cement at a temperature of 240°C or higher, which is more than 48 MPa, has good high-temperature stability, good fluidity of cement slurry and adjustable thickening time, and can be used for oil and gas wells with high temperature and deep well environmental conditions. High quality cementing works. |
| priorityDate | 2021-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.