Numerical simulation of the LITHODENSITY TOOL lithology response
Conference
·
· Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:5330217
The numerical simulation of gamma ray logging in the context of the measurement of a formation's average photoelectric absorption properties by the LITHODENSITY TOOL (LDT) is discussed. The accuracy of a model of the LDT's response, which has been developed using the MCNP transport code, is exhibited through comparison to experimental data. This model is then used to examine in detail the connection between the tool's response and formation properties by means of spectral studies of the spatial, angular and energy distribution of the photons which contribute to this response. Further model calculations of the collision density distributions of detected gamma rays are used to explore how the LDT's measurements spatially sample the formation.
- Research Organization:
- Schlumberger-Doll Research, Ridgefield, CT
- OSTI ID:
- 5330217
- Report Number(s):
- CONF-8310121-
- Conference Information:
- Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE12051
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
440400* -- Well Logging Instrumentation
47 OTHER INSTRUMENTATION
ABSORPTION SPECTRA
ACCURACY
ANGULAR DISTRIBUTION
COMPUTER CODES
COMPUTERIZED SIMULATION
DATA
DISTRIBUTION
EXPERIMENTAL DATA
FUNCTIONS
GAMMA LOGGING
GAMMA SPECTROMETERS
INFORMATION
LITHOLOGY
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
NUMERICAL DATA
RADIOACTIVITY LOGGING
RESERVOIR ROCK
RESPONSE FUNCTIONS
SIMULATION
SPATIAL DISTRIBUTION
SPECTRA
SPECTRAL DENSITY
SPECTRAL FUNCTIONS
SPECTRAL RESPONSE
SPECTROMETERS
WELL LOGGING
47 OTHER INSTRUMENTATION
ABSORPTION SPECTRA
ACCURACY
ANGULAR DISTRIBUTION
COMPUTER CODES
COMPUTERIZED SIMULATION
DATA
DISTRIBUTION
EXPERIMENTAL DATA
FUNCTIONS
GAMMA LOGGING
GAMMA SPECTROMETERS
INFORMATION
LITHOLOGY
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
NUMERICAL DATA
RADIOACTIVITY LOGGING
RESERVOIR ROCK
RESPONSE FUNCTIONS
SIMULATION
SPATIAL DISTRIBUTION
SPECTRA
SPECTRAL DENSITY
SPECTRAL FUNCTIONS
SPECTRAL RESPONSE
SPECTROMETERS
WELL LOGGING