| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b1962bdeafe58e2f312c308fe511c31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fffda8b59ac378c0e7cd94cdf51bbfd7 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01V3-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-26 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-267
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B49-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01V3-081 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01V3-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B47-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01V3-18 |
| filingDate |
2015-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_09519940225d2d214a53878b41ca74ae
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f50467a931c876afd8201e59a4594d8f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e8d77c7a83e2d7364aca0aca0f72d8a4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf9b2cd1d27142b8239a5dd4efb6a87e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da0c48c074bcc50ea882c6857bed1003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02432716836d8de62138946f0bea853c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68f247de00e3f1275323fd7a7a71e806 |
| publicationDate |
2015-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2937892-A1 |
| titleOfInvention |
Interrogating subterranean hydraulic fractures using magnetoelastic resonators |
| abstract |
A fracture interrogation system includes an antenna adapted for placement in a subterranean wellbore and a plurality of pseudoparticles adapted for distribution with a proppant material into hydraulic fractures along the wellbore. The presence of the pseudoparticles in the hydraulic fractures is detectable by the antenna. The pseudoparticles can include a magnetoelastic resonator having a resonant frequency. An interrogation field excites the resonators at the resonant frequency for detection by the antenna. The same or a different antenna can act as the interrogation field source, and the system can be configured to operate in a talk-and-listen mode to better separate the response signal from the interrogation signal. Electromagnetic, mechanical, or acoustic impulses can be used to excite resonators of the pseudoparticles. |
| priorityDate |
2014-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |