| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c957f65f4ba63ec328fcfe928f5dcf32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f832d83f60385574f95631e969e1cba2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4e1f2897b715526b5dff3a940e06e66b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5098bb8c716e8636a3ecdd01af0e36a6 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B17-1078
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B17-1042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B17-1057 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B17-10 |
| filingDate |
2010-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cdbdaf5199855272a5789cffbf5cc829
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_074fd67f11cffc2a952f96f5d13e49b8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ec1ce13b56ceb156e566e93935d58ae |
| publicationDate |
2011-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2011059694-A1 |
| titleOfInvention |
Open hole non-rotating sleeve and assembly |
| abstract |
A non-rotating downhole sleeve adapted for open hole drilling and/or casing centralization. The sleeve includes a tubular body made of hard plastic with integrally formed helical blades positioned around its outer surface and an inner surface configuration which allows drilling fluid circulation to form a non-rotating fluid bearing between the sleeve and the drill pipe or casing. The helical blades reduce sliding and rotating torque while drilling, with minimal obstruction to drilling fluid passing through the borehole between the blades. In one embodiment, improvements are provided during casing exit when drilling in open hole environments. In another embodiment, improvements are provided in the sleeve's resistance to compressive loading. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013090971-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2486055-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2486055-A |
| priorityDate |
2009-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |