Study on distribution of oil and water in reservoirs based on regional geological characteristics - Case study from Heidimiao oil reservoir in D block

The overall exploration and development degree of the Heidimiao potential oil layer in D block is not high, and there are still some problems in the development work, such as reservoir display law, oil-water layer identification and oil and water distribution prediction. In this paper, the distribution law of reservoir oil and water of Heidimiao oil reservoir in D block is studied by quantitative log interpretation combined with geological characteristics. The result showed that the permeability of reservoirs increases with the increase of lithological particles, the oil content of the reservoir becomes better as the size of rock particles increases. On the basis of the characteristics of the block reservoir type and the analysis of the main control factors of the logging response, the distribution of oil and water is more accurate and reliable.