Abstract: Transient well testing can quantitutively measures therelevant parameters of formations and wells. The targetsof progressive exploration and development are verycomplex, and profound understanding of the reservoirs isneeded to lay out exploration and development plans.Through systematic analysis of the transient well test dataobtained in some progressive exploration and developmentblocks and study of reservoir contamination and reservoirboundaries, a better understanding of the reservois isachieved and the effects of progressive exploration anddevelopment are improved.