Well Test Analysis And Productivity Evaluation Of Bohai A Oilfield

After the first term production, the pressure dropped quickly, production declined quickly in A oilfield. In order to understand the fluvial sandstone reservoir dimension, connection of layers, boundaries, the seepage characteristic and parameters, the formation pressure and the evaluation Wells, better evaluation for the productivity and guide for later oilfield development and management ,many oil Wells had been tested. On the basis of the understanding of formation characteristic and reservoir features, studied similar oilfields well test evaluation application, investigated and optimized the fluvial field seepage physical model in this paper. Explained formation parameters through multi-wells bottom-hole flowing pressure and production, analysed and evaluated single well productivity through these well test results. Decided the oil well natural productivity through analysis and evaluation of A oilfield data, and obtained basic the reservoir characteristic parameters. Evaluated the present seepage and single dynamic reserves reasonably, Through evaluation of the formation pressure, the formation damage ,the completion of oil wells, the formation seepage capability, the formation coefficient, the flow coefficient and the single well dynamic reserves, well guided layers contrast and later management, gave some advices to the second drilling and completion work in this paper.