应用水平井技术提高潜山油藏开发效果

Application of horizontal well in improving development effect of buried hill reservoir

李迎环

Li Yinghuan

辽河油田分公司勘探开发研究院，辽宁 盘锦 124010

Research Institute of Exploration and Development, Liaohe Oilfield Company, CNPC, Panjin 124010, China

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 Shen 223-628 is a fractured buried hill reservoir in Jinganbao Oilfield of Liaohe Area. In view of the great drilling difficulty of buried hill reservoir and the poor development effect in vertical well, the exploring and research of horizontal well development is carried out. We optimized the azimuth, the vertical position and the length of horizontal section in reservoir. The practice has proved that it is feasible to develop the buried hill reservoirs with horizontal well so long as the design is reasonable, which has obtained the obvious effects in the respect of enhancing the development well productivity. That has an important guiding
meaning to develop the analogous buried hill reservoirs.