http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111119775-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a8adc8075dbc4f22f123366ddb1f0518 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B25-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B17-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B25-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B27-00 |
| filingDate | 2020-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a53581a0d6f9adfd54637e624969935 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4ede3e93f84f1a6512e8119619449ff http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23afacb3764244570197b1b0918b79f6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b79be1aa6954bcecf918452f829a2ae |
| publicationDate | 2020-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111119775-A |
| titleOfInvention | Novel rock core pipe capable of clearing hole, fishing sand and gravel and taking core |
| abstract | The invention discloses a novel core barrel capable of clearing holes, fishing sand and gravel and taking cores, which comprises a sand fishing section, a core taking section and a core barrel connecting section; an inner cavity pipe wall is arranged in the sand bailing section to form a double-layer structure; the upper end of the inner cavity pipe wall is connected with the rock core pipe joint; the top of the bailing section is in an arc streamline shape; the outer pipe wall of the bailing section close to the upper end is provided with a pair of sand inlets; a plurality of water drainage holes are formed in the sand bailing section close to the lower end; the upper part of the rock core pipe connecting section is provided with an inner cavity pipe wall to form a double-layer structure, and the lower part of the rock core pipe connecting section is of a single-layer structure; the middle part of the core barrel connecting section is provided with an annular sand separation plate to form a ladder-shaped structure; a sand storage chamber with an opening at the upper part is enclosed by the clearance between the double-layer structures of the bailing section, the clearance between the double-layer structures at the upper part of the rock core pipe connecting section and the sand separating plate; the lower extreme and the coring section of core pipe linkage segment are connected, and the lower extreme of coring section is equipped with the drill bit. The invention has the functions of drilling and coring, and fishing sand and gravel in various sand and gravel and weathered rock debris layers. |
| priorityDate | 2020-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 197.