http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8476584-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e183b88ffc72e64d1b805a946af58de http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_59afaed07f015cd8537bb00f91b942e8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7b67f8821e519ddd506b793f1ded912 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01V5-102 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01V5-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01T1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01V5-101 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01V5-10 |
| filingDate | 2011-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5781c09aed305d593113332a3440c74a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_852016ec4de1006a0d03cfa726792d50 |
| publicationDate | 2013-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8476584-B2 |
| titleOfInvention | Methods for sourceless density downhole measurement using pulsed neutron generator |
| abstract | Disclosed is a method for estimating a density of an earth formation penetrated by a borehole. The method includes: emitting a pulse of fast neutrons into the formation during a neutron-pulse time interval; detecting gamma-rays due to inelastic scattering and thermal capture of the emitted neutrons in the formation to provide a gamma-ray energy spectrum due to the inelastic scattering and the thermal capture during a first time interval within the neutron-pulse time interval and to provide a time spectrum of counts or count rates due to thermal capture during a second time interval occurring after the neutron-pulse time interval; determining a macroscopic capture cross section of the formation from a decay in the time spectrum of counts or count rates; determining an elemental weight fraction from the gamma-ray energy spectrum; and estimating the density of the formation using the macroscopic capture cross section and the elemental weight fraction. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9726623-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010193676-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11397277-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8847149-B2 |
| priorityDate | 2011-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.