Published February 21, 1980
| Version v1
Patent
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Geophysical neutron GAMMA process for determining the properties of earth formations surrounding a borehole
Description
The borehole sensor has a neutron source, which sends out neutron pulses. The hydrogen, chlorine and oxygen gamma radiation is detected using a detector at three different time intervals. From these measured signals one can draw conclusions on the ratio of hydrocarbons (oil) to saltwater and freshwater in the surrounding formation and in the borehole. Parts of the electronic equipment and the detector are situated inside the sensor. (DG)
Availability note (English)
MF available from INIS under the Report Number; Available from Deutsches Patentamt, Muenchen, Germany, F.R.Abstract (German)
Die Bohrlochsonde besitzt eine Neutronenquelle, die Neutronenimpulse aussendet. In drei unterschiedlichen Zeitintervallen wird die Wasserstoff-, Chlor- und Suerstoff-Einfanggammastrahlung mittels eines Detektors aufgenommen. Aus diesen Messsignalen koennen Rueckschluesse auf die Verhaeltnisse von Kohlenwasserstoffen (Oel) zu Salzwasser und Frischwasser in der umgebenden Formation und im Bohrloch gezogen werden. Teile der Elektronik und der Detektor befinden sich ebenfalls innerhalb der Sonde. (DG)Files
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Additional details
Additional titles
- Original title (German)
- Geophysikalisches Neutron-GAMMA-Verfahren zur Bestimmung der Eigenschaften von ein Bohrloch umgebenden Erdformationen
Publishing Information
- Imprint Pagination
- 11 p.
- IPC:
- Int. Cl. G01V 5/00.
- IPC
- Int. Cl. G01V 5/00.
- Patent number
- DE patent document 2519788/C/
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 13658798
- Subject category
- S58: GEOSCIENCES;
- Descriptors DEI
- BOREHOLES; EARTH CRUST; GAMMA LOGGING; GEOLOGY; GEOPHYSICS; NEUTRON LOGGING; NEUTRON SOURCES
- Descriptors DEC
- CAVITIES; PARTICLE SOURCES; RADIATION SOURCES; RADIOACTIVITY LOGGING; WELL LOGGING