Optimization of the gas-dynamic well tests for the low-permeable and over-pressured reservoirs without loss of the informative value

The recommendations on the primary gas-dynamic wells surveys providing maximum data at the minimal time period and resources for the surveys execution are given in the paper.The algorithm of the interpretation data use for the history matching of the full-scale field model from the point of pressure distribution and for other wells surveys forecasting is proposed.
Materials and methods
History matching of the analytical modelof unstable gas filtration in the conditions of abnormally high formation pressure is performed based on the results of field hydro-dynamic and gas-dynamic well surveys.
Results
The results of optimization of temporary costs for hydro-dynamic surveys in the conditions of low reservoir properties and abnormally high formation pressure of the Achimov deposits of the Urengoy field without loss of the informative value for detailed matching of the permanentreservoir-simulation model are provided.
Сonclusions
After conducted works were given recommendation on the methodology on primary well surveys providing primary temperature and pressure conditions of the Achimov deposits of the Urengoy oil and gas condensate field.