Abstract: In order to increase Liaohe Oil Area Haiwaihe Oilfield Xinhai 22 Block dense well spacing and improve heavy bedded heavy crude basal water reservoir exploitation results, based on detailed description to the reservoir, we analyzed the water coning and oil remaining potential area with new technologies including well logging, reservoir engineering, original well network exploitation status, numerical modeling, etc. Through optimized disposition and elaborate design and construction, the Haiping 2 Well fully embodies the excellence of horizontal well, including restraining bottom water coning, decreasing containing water ascending speed, increasing recoverable reserves and improve oil production rate. It explores valuable research approaches and practice experience on site for efficient application of horizontal well technologies in similar reservoirs.