The“well factory”is becoming more and more concerned in the development of oil and gas field with its obvious advantages such as intensive well layout, small area cover, resources sharing, assembly line production, large-scale mass production, high runtime rate, instant gratification, obvious benefits. The tight conglomerate reservoir in Dongxin Yan227 has adopted the conventional methods at the early stage. Hydraulic fracturing is used to stimulate the vertical wells and deviated wells. Single well’s daily liquid yielding is 3 m3 /d, daily oil production is 1.2 t/d. The oil well productivity and the block’s oil production rate are low, and the economic performance is poor, as well as the poor development effect. Based on the problems above, the unconventional development method named “well factory”is intensively constructed in recent years. The centralized drilling, fracturing and producing mode is used. Through strengthening technology research and integrated application, focusing on the geological characteristics and the reservoir properties, the matching methods such as the well pattern optimization technology, the long well section of horizontal well technology, the optimized drilling technology and the multistage fracturing technology with pumping segment bridge plug and other unconventional techniques are carried on. The block reserve producing rate and single well productivity are greatly increased. This technology improves the development level of the low permeability conglomerate reservoir significantly, and provides the beneficial reference for the efficient development to similar reservoirs.