http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-203961893-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d4b091312370167cc3cabfdaac40ee9e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-128 |
| filingDate | 2014-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae0b02dff3b9141a25708b9ea360128b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ca0a00fcb70ebefaeb37bd066f56f14e |
| publicationDate | 2014-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-203961893-U |
| titleOfInvention | Dual string packer |
| abstract | The utility model relates to a kind of dual string packer, it comprises packer body, in the centre bore of packer body, be provided with the interior tubing string between packer body with annular space, the upper end of inner tube (20) is connected with upper setscrew nut (19) with the lower end of upper box cupling (18) from the top down successively by external screw thread, and the lower end of inner tube (20) is connected with lower box cupling (22) upper end with lower setscrew nut (21) from the top down successively by external screw thread.It has two waterflood paths, can realize layering water filling and suppress test respectively, uses more convenient.It has effectively solved conventional packer and has only had a waterflood path, can not realize layering water filling and suppress the problem of test respectively.By being connected respectively with inside and outside oil pipe, make it to form two independently water filling lead to, meet to greatest extent the requirement of water filling layer water distribution quantity. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104499988-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104499988-B |
| priorityDate | 2014-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 193.