Borehole imaging technology plays a key role in formaiton characterization and hydrocarbon reservoir evaluation. Analog (or physical) modeling is a method for studying the efects of subsurface bodies or structures by comparison with the response of earth models built in the laboratory. Historically, analog modeling has been used to support tool development and data interpretation. The modeling results have been too complex, however, to support tool development and data interpretation. The modeling results have been too complex, however, to explain the physics of the imaging tool response. Subsequently, numerical simulation has replaced analog modeling to support tool development and data itnerpretation. With advanced computer technology, numerical simulation can model and explain the physics of complicated models. Due to the spatial geometry of tool and rock formations, however, even three-dimensional numerical modeling has its limitations. Both analog and numerical modeling methods must be used to understand the relationship between real geology features and iamge logs. The combination of analog and numerical modeling assists the development of both acoustic and it also resistivity-imaging tools as well as interpretation software and provides an effective way to extract better geologic information.
展开▼
