Numerical Simulation of Dual Laterolog in Cavernous Carbonatite Reservoir

Abstract

Zhao, J.; Wang, D., and Gu, H., 2015. Numerical simulation of dual laterolog in cavernous carbonatite reservoir.The cavernous reservoir has become one of the main carbonate reservoirs for stable and increasing production. The degrees and the types of fillings materials are the key factors which affect the characteristics of accumulation and flowage. However, due to the complexity of fillings in the caves, the response laws of logging of the cavernous reservoir can not be understood clearly and its effective evaluation has been severely hampered. This paper uses for the first time numerical simulation to study the responses in the curve of dual lateral log of cavernous reservoir. By establishing a continuous equation of the dual lateral log and its boundary factors and using the electric field superimpose principle, a finite element method is used to study the cave size, different filling agents and degrees are simulated. The result indicates that the size, filling agents and degrees show a clear response, and they have a clear correspondence. Summarizing and analyzing the response laws on the dual lateral logging curves of the cavernous reservoir can provide theoretical evidence for the logging evaluation of the carbonate cavernous reservoir.