| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_71dd18f56502f034674ab8a9f36ce8e9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2314d1b1762e369c59d939381b8fc02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-805
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-80 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-74 |
| filingDate |
2011-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2015-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a016c53d4f26fbf049adca3865d20b1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7f5cf703ac6101f6cb058ef505f53b1 |
| publicationDate |
2015-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9051511-B2 |
| titleOfInvention |
Multiple component neutrally buoyant proppant |
| abstract |
Proppant used to keep open a fissure in a reservoir created by hydraulic or other action is disclosed. The proppant demonstrates a reduced specific gravity controlled by the geometry of the structure of the proppant. Proppant must be capable of withstanding the hydrostatic environment of the hydraulic pumping system, pass through a perforation in the casing of the well, travel into the fissure, and, upon reduction of hydrostatic pressure, withstand the closure pressure of the formation. A proppant having neutral buoyancy or substantial neutral buoyancy yet capable of withstanding the hydraulic and closure pressures is described that has a tubular structure hollow in the center with a wall of material sufficiently strong to withstand the majority of closure pressures. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10012064-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10982520-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10344204-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10385258-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10385257-B2 |
| priorityDate |
2010-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |