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辽河油区静安堡油田沈223-628块为裂缝性潜山油藏。针对潜山油藏钻井难度大、直井开发效果不理想这一开发难点,开展了油藏潜力评价,进行了水平井开发的探索与研究,对水平段在油层中的方位、水平段在油层中纵向位置及水平段的长度等问题进行了优化设计。实践证明:只要设计合理,水平井开发潜山油藏是可行的,且在提高开发井产能方面已经取得了明显效果,对国内类似潜山油藏的开发具有重要指导意义。
Block 223-628, Jing’anpu Oilfield, Liaohe Oilfield, is a fractured buried hill reservoir. In view of the difficulty of drilling well in buried hill reservoirs and the ineffectiveness of vertical well development, the reservoir potential evaluation was carried out and exploration and research on horizontal well development was carried out. The horizontal and vertical sections of the horizontal section in the reservoir Longitudinal position and length of horizontal section and other issues were optimized. Practice has proved that it is feasible to develop buried hill reservoirs in horizontal wells as long as the design is reasonable and has achieved remarkable results in improving the productivity of development wells and is of great guiding significance for the development of similar buried hill reservoirs in China.