Modeling of trap work, during the over contour water pressure extraction mode with using the method of material balance and Carter-Tracy algorithm

In the development oil-field in the water edge aquifer mode, the most important problem is the monitoring the reservoir pressure. This parameter determines as the product influx in production wells and as the aquifer water inflow. That control is achievable if there have balance between withdrawal of oil and water inflow. At that detail of geological and hydrodynamic model of the deposit does not affect on the validity of the definition of aquifer influx of water because it does not include the construction of a full-scale model of aquifer.
Materials and methods
Algorithm of aquifer parameters chose by matching of calculations with bed pressure research data in dynamic.
Results
Calculations by shown model allow to predict the intrabed pressure action in different time moments and in future. For example, possible to calculate the times when the reservoir pressure falls to the oil degassing. By changing the withdrawal of oil rate, possible to analyze different scenarios and select the most efficient on economic and technological criteria.
Сonclusions
The use of the material balance method allows to predict with sufficient reliability the work of a small well-connected reservoirs with relatively simple geology. Built model allows:
1. To predict the bed pressure dynamic.
2. To control the bed pressure dynamic.