http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1182741-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_137ad4f406af5b0333fbe8694f2ed4a9 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01V5-108 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01V5-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01V5-04 |
| filingDate | 1982-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1985-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a90ac0173568d037d030fe148207288e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e8975068e0ec2e1754d3ca5d7651f5f0 |
| publicationDate | 1985-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1182741-A |
| titleOfInvention | Methods and apparatus for environmental correction of thermal neutron logs |
| abstract | Methods and Apparatus for Environmental Correction of Thermal Neutron Logs Abstract An on-line environmentally-corrected measurement of the thermal neutron decay time (?) of an earth formation traversed by a borehole is provided in a two-detector, pulsed neutron logging tool, by mea-suring ? at each detector and combining the two ? measurements in accordance with a previously estab-lished empirical relationship of the general form: ? =?F + A(?F + ?NB) + C, where ?F and ?N are the ? measurements at the far-spaced and near-spaced detectors, respectively, A is a correction coefficient for borehole capture cross section effects, B is a correction coefficient for neutron diffusion effects, and C is a constant re-lated to parameters of the logging tool. Preferred numerical values of A, B and C are disclosed, and a relationship for more accurately approximating the A term to specific borehole conditions. |
| priorityDate | 1981-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID6857639 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419578831 |
Total number of triples: 16.