http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4832137-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af7c9c966acd2ef7eca105d82d8d0991 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B17-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B17-16 |
| filingDate | 1987-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1989-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03cf3fd9ac567c6fca7041bdf436f928 |
| publicationDate | 1989-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4832137-A |
| titleOfInvention | Method for protecting a pipe casing from a drill pipe string |
| abstract | An improved method for protecting a drill pipe casing from a rotatable string of drill pipe longitudinally extended therethrough. The method involves positioning a collar structure circumferentially around the upper end of one pipe section which is internally threaded and then thereafter engaging therewith the lower end of a second pipe section which is externally threaded and engageable with said first pipe section. The collar structure is formed of a poly(arylene sulfide) and is a single unitary structure having circumferentially extended outer surfaces which are adapted to resist spinning with the drill pipe string positioned in the casing structure. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5833019-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5833018-A |
| priorityDate | 1986-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.