http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-207526480-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ebfdf7c92cc323353c48b3d2653f3e62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B17-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-08 |
| filingDate | 2017-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93c4b6429118bcf378e9052ccb0827ae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee797f9951452d2e84ba5fd7a04c204e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_90a7432589d8eac20c87287f918b12e5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_681a4b39101cfcfe9bb51da11305b26e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2570835ea88772bd02a8cb8fe3cb454b |
| publicationDate | 2018-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-207526480-U |
| titleOfInvention | A kind of heavy caliber reducing type fills out gravel drawing liquid well |
| abstract | The utility model is related to a kind of heavy caliber reducing types to fill out gravel drawing liquid well, the drawing liquid well is followed successively by downwards bigbore upper sleeve, diameter changing device, small-bore lower parts casing pipe, filter and sand sediment pipe from earth's surface, to earth's surface filling concrete, gravel is filled in the upper end of filter to shaft bottom for the upper end of filter.At the diameter changing device 120 200m of water buried depth located underground.For the bore of the upper sleeve in 180 250mm, wall thickness is 13 15mm.The bore of the lower parts casing pipe is 152mm, and wall thickness is 10 12mm.The diameter changing device is multi-stage reducing box cupling, by upper sleeve bore size multi-stage reducing to 152mm.The upper sleeve or the material of lower parts casing pipe are PVC or PE.The utility model shortens the reaming period, saves the drilling construction time, and one borehole construction period reduces 23 days；Lower parts casing pipe uses Φ 152mm casings, compared with complete opening uses 190 casings of Φ, casing cost savings about 20%；The decentralization and promotion of 6 inches of immersible pumps can be met. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113027389-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111101905-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113431512-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115370328-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113027389-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114000859-A |
| priorityDate | 2017-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.