http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2920400-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d622a0608e3aeef107d6d1c53e172695 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B45-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B44-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01M99-008 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01M99-005 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B44-00 |
| filingDate | 2013-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5dc76711c1b6d227416067db5abd1549 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d5b79c34823df9355aea7adf0d38a92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0fcdad9a0378b93af6b9d6c4ba2736da http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_204afd575cae71fcaf316bdf186afecd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_29fadfcc7ec81165079dfcee6e50be67 |
| publicationDate | 2015-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2920400-A2 |
| titleOfInvention | Method to detect drilling dysfunctions |
| abstract | Methods and systems for detecting downhole bit dysfunction in a drill bit penetrating a subterranean formation comprising receiving a plurality of drilling parameters characterizing a wellbore drilling operation and calculating bit aggressiveness (μ) at each of a plurality of points during drilling, wherein each point corresponds to time, depth, or both. A depth-of-cut (DOC), time derivative of bit aggressiveness (μ), calculated as dμ/dt, or both, is calculated at each of the plurality of points. A two-dimensional data representation of the plurality of points, comprising μ in one dimension and DOC, μ, or both, in another dimension is created. Data features are extracted from the two-dimensional data representation and downhole bit dysfunction is identified by comparing the extracted data features with predefined criteria. |
| priorityDate | 2012-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.