| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_48e0eac2dfd09218451bf6d525253c7d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-038
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-064
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B17-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B17-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B21-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B21-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B41-0007 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B21-00 |
| filingDate |
2005-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97b872c2212ca34e86a98782f4dd057e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a33339428f003f087bd6110b28ebf54a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_929233673a102f1e1956ab0834a6243e |
| publicationDate |
2007-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1817481-A2 |
| titleOfInvention |
Downhole swivel apparatus and method |
| abstract |
What is provided is a method and apparatus which can be detachably connected to an annular blowout preventer thereby separating the drilling fluid or mud into upper and lower sections and allowing the fluid to be displaced in two stages, such as while the drill string is being rotated and/or reciprocated. In one embodiment the sleeve can be rotatably and sealably connected to a mandrel. The swivel can be incorporated into a drill or well string and enabling string sections both above and below the sleeve to be rotated in relation to the sleeve. In one embodiment the drill or well string does not move in a longitudinal direction relative to the swivel. In one embodiment, the drill or well string does move longitudinally relative to the sleeve of the swivel. |
| priorityDate |
2004-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |