With the deepening of exploration and development, more and more attention has been paid to the study of unconventional reservoirs, especially deep tight sandstone reservoirs. Due to the special physical properties of low porosity and low permeability and complex pore structure, the traditional rock physics model is no longer applicable. In this paper, a modeling method is proposed based on the complex mineral component model and the equivalent medium theory. This method subtly considers the four characteristics such as the diversity of tight sandstone matrix minerals, the irregularities of pore structure, the connectivity between pores and the anisotropy caused by fractures, and obtains multiple parameters that can reflect the characteristics of the reservoir pore structure. The pore structure parameters calculated by this model fully take into account the general laws of rock physics and regional differences, and have high accuracy. The application in a work area shows that this method can effectively mine the micro information hidden in the logging data, and can provide a reliable reference for the division of high-quality reservoir intervals.
Presentation Date: Monday, October 12, 2020
Session Start Time: 1:50 PM
Presentation Time: 2:40 PM
Location: Poster Station 4
Presentation Type: Poster
