Abstract: Based on static and dynamic data from Wutonggou formation of Sha nan oilfield, using the parallel numerical analog technique and on the basis of reservoir history matching, a series of sensitivity analysis of various parameters have been conducted for natural energy of reservoir, different well pattern, well spacing, timing of water injection, different injection-production ratios and reasonable production rate. It provided theory basis and technique guarantee to ensure the high quality,efficient development and keeping the steady production for Wutonggou formation reservoir of Sha'nan oilfield.

Key words: numerical analog, geologic model, development plan, index, prediction, economic evaluation