Abstract: In view of several types of oil and gas reservoirs in Xinjiang oilfield, the optimized composite perforation projects in different blocks are selected to make comparisons of the production effects with adjacent wells by conventional perforation technology. The results show that in medium?low permeability reservoir, adopting the composite perforation technology can get obvious responses in increasing production, increasing water injection and fluid producing intensity, and effectively improve the permeable ability between borehole and reservoir as well as the communication of near?wellbore fractures. However, in reservoirs with poor physical and oiliness properties, the effect could be unsatisfied by such a composite perforation technology