Comparison of Monte Carlo and discrete ordinates methods in a three-dimensional well-logging problem

Conference · Fri Nov 01 04:00:00 EST 1985 · Trans. Am. Nucl. Soc.; (United States)

OSTI ID:5075183

Badruzzaman, A; Chiaramonte, J

In this paper, the authors compare the Monte Carlo and the two discrete ordinates methods (nodal and conventional) in the benchmark well-logging problem. Although the problem is prototypical of well-logging systems, it severely tests the capabilities of transport methods. The Monte Carlo calculations were performed with the Los Alamos code, MCNP. The discrete ordinates calculations were performed using the Schlumberger three-dimensional nodal transport code, LENA3D (Linear Expansion Nodal Anisotropic 3D). The three-dimensional discrete nodal transport method developed and coded in LENA3D appears to be significantly faster than the Monte Carlo method in MCNP for this problem. The linear surface flux nodal method yields the accuracy of a Monte Carlo calculation with more than an order of magnitude less computing time for this problem. The method thus offers the potential for performing large-scale three-dimensional transport calculations to complement Monte Carlo methods in well-logging and other radiation transport problems.

• OSTI ID: 5075183
• Report Number(s): CONF-851115-
• Conference Information: Journal Name: Trans. Am. Nucl. Soc.; (United States) Journal Volume: 50
• Country of Publication: United States
• Language: English

Related Subjects

440400* -- Well Logging Instrumentation
47 OTHER INSTRUMENTATION
654003 -- Radiation & Shielding Physics-- Neutron Interactions with Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DISCRETE ORDINATE METHOD
MONTE CARLO METHOD
NEUTRAL-PARTICLE TRANSPORT
NEUTRON TRANSPORT
RADIATION TRANSPORT
THREE-DIMENSIONAL CALCULATIONS
WELL LOGGING