| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_90e7136bc810b844502b21de846a8a71 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B47-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B47-111
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01V5-101
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01F1-7042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01F1-64 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01V5-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B47-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01F1-704
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01F1-64 |
| filingDate |
1975-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af5e63b00b3528b3596c949a8ec9c3ea
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d7983e7418abc5320365af74f57f4d8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a1c52a4147a6887bb9dbd2bb853bbe5 |
| publicationDate |
1977-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4032780-A |
| titleOfInvention |
Behind casing water flow detection using continuous oxygen activation |
| abstract |
Measurement of the volume flow rate and linear flow velocity of undesired behind casing water flow is provided. A well tool having a 14 MEV neutron source is used to continuously irradiate earth formations behind well casing. The continuous neutron irradiation activates elemental oxygen nuclei comprising the molecular structure of any undesired water flow to be detected. Dual spaced gamma ray detectors located above or below the neutron source detect the decay of unstable isotope nitrogen 16 and from these indications the linear flow velocity of the undesired water flow is deduced. By then estimating the distance R to the undesired flow region the volume flow rate V may be deduced. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5461909-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0236613-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4825073-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4574193-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5404752-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5219518-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4608636-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0321197-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5001342-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9823384-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5094808-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4287415-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7227129-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0321198-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7186971-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4580050-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005284627-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005284626-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4524272-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3107329-A1 |
| priorityDate |
1975-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |