Gamma ray measurement of earth formation properties using a position sensitive scintillation detector

Patent · Tue Oct 21 00:00:00 EDT 1986

OSTI ID:5058847

Sonne, D S

This patent describes a system for measuring properties of earth formations in the vicinity of a well borehole at different radial distances from the borehole, comprising: a fluid tight hollow body member sized and adapted for passage through a well borehole and housing therein; a source of gamma rays and means for directing gamma rays from the source outwardly from the body member into earth formations in the vicinity of the borehole; and a position sensitive scintillation detector for detecting gamma rays scattered back into the body member from the earth formation in the vicinity of the borehole and means for collimating the scattered gamma rays onto the detector.

• Assignee: Halliburton Co., Duncan, OK
• Patent Number(s): US 4618765
• OSTI ID: 5058847
• Resource Relation: Patent File Date: Filed date 18 Jan 1984
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
GAMMA LOGGING
POSITION SENSITIVE DETECTORS
SCINTILLATION COUNTERS
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
AMPLITUDES
BOREHOLES
COLLIMATORS
CRYSTALS
ELECTRIC POTENTIAL
GAMMA SOURCES
PHOTOMULTIPLIERS
SCATTERING
SIGNALS
CAVITIES
GEOLOGIC DEPOSITS
MEASURING INSTRUMENTS
MINERAL RESOURCES
PHOTOTUBES
RADIATION DETECTORS
RADIATION SOURCES
RADIOACTIVITY LOGGING
RESOURCES
WELL LOGGING
020200* - Petroleum- Reserves
Geology
& Exploration
030200 - Natural Gas- Reserves
Geology
& Exploration
440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments