http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-213116251-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_570cfbfbd7f2d028f2b04eb60c856227 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-128 |
| filingDate | 2020-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_adcbcda55e84410016338d41457ff394 |
| publicationDate | 2021-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-213116251-U |
| titleOfInvention | Long service life's packer for oil development |
| abstract | The utility model discloses a long service life's packer is used in oil development, including packer body, top connection, lower clutch and inoxidizing coating, the top of packer body is provided with the top connection, and the bottom of packer body is provided with the lower clutch, threaded connection between top connection and the packer body, threaded connection between lower clutch and the packer body, and the surface of packer body, top connection and lower clutch all is provided with the inoxidizing coating, and the inoxidizing coating includes stainless steel layer, first dampproof course, first corrosion resistant layer, heat-resistant layer, second dampproof course, second corrosion resistant layer and wearing layer. The utility model discloses a set up first dampproof course and second dampproof course, effectively improved the humidity resistance of packer body, through setting up first corrosion resistant layer and second corrosion resistant layer, effectively improved the corrosion resistance of packer body, through setting up the heat-resistant layer, effectively improved the heat resistance of packer body, through setting up the wearing layer, effectively improved the wear resistance of packer body. |
| priorityDate | 2020-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 16.