Study On Flow Characteristic Of Second Tertiary Developmnet Mode And Polymer Injection Development Mode

The experimental block start polymer injection in June, 2012. In December 2012, began to work. But the recovery and moisture content of the block are not ideal. In order to study the injection production parameters influence on the block, we need to do numerical simulation research. Analyzing the flow characteristic. To compare the differences between second tertiary and polymer injection development mode. Provide theory support.First, geology data and production performance data of B block of LM oilfield are analyzed, and the comprehensive development curve of production status are mapped. Gain a whole understanding about general geological situation and development process of research block.Secondly, analyzes the flow mechanism of polymer flooding. Combining with dynamic development data, establish the numerical simulation model with Eclipse software, and conduct develop dynamic matching. Analyze different injection production ratio and polymer parameters. We analyze seepage features of second tertiary combined development mode and polymer injection development mode. We analysis the influence of different injection-production ratio、different injection parameters of polymer flooding、hierarchical quality injection、different permeability in the original perforation layer and hole filling layer、different thickness in the original perforation layer and hole filling layer、different initial water saturation in the original perforation layer and hole filling layer and heterogeneity model.In the end, according to the static data, the 3D geological model of M block is established with Petrel software; combining with dynamic development data, establish the numerical simulation model with Eclipse software, and conduct develop dynamic matching. The matching result is within precision allowed. The injection rate schemes are forecast, according to the conclusion of the conceptual model.