http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013341059-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f0bc7e64e901e2aefe9d5c7233c9102b http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_135ad43660267ab28a978933f1512a86 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B19-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B7-023 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B7-02 |
| filingDate | 2012-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_223710b1698b2abc483215eed6b20c4f |
| publicationDate | 2013-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2013341059-A1 |
| titleOfInvention | Top drive sheave method and apparatus |
| abstract | A traveling top drive sheave system includes in one embodiment a rig carrier, a mast assembly pivotally attached to the rig carrier comprising guide rails and a crown block, a top drive fixture, and a traveling sheave block. The mast assembly is moveable to a generally perpendicular position with respect to the rig carrier, providing the top drive access to a wellhead. The top drive is mounted within the mast assembly and is supported along guide rails to be vertically moveable along a same axis as the wellhead. In one embodiment, the traveling sheave block has an axis offset from the crown block to enhance the reeving of a drilling line between both blocks. In another embodiment, the system contains guide rails and rollers whereby at least one of the rollers or guide rails has a groove and the other is sized to mate with said groove for facilitating vertical movement along said mast assembly. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016290046-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-116122729-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013341045-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9016386-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10550640-B2 |
| priorityDate | 2012-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.