摘要 ：近年来 ，随着储量 品位 的逐年 降低 ，超低渗透油 藏 的开 发成为 油 田开发 的重点 。以鄂 尔多斯 盆地靖安油　
田大 路 沟 二 区 油 藏 为 例 ，通 过 开 展 “ 井 距 矩 形 井 网 、小 水 量 超 前 注 水 、前 置 酸 加 砂 压 裂 、合 理 生 产 参 数 ” 等 　
                                              小
开发技术 政策的探 讨 ，研究 提高超低 渗透储层 开发效果 的配套技 术 ，并取得 了一些 阶段性成果 与认识 。现场实　
践 表 明研 究 区 的 合 理 开 发 技 术 政 策 为 ：采 用 小 井 距 矩 形 部 署 井 网 ，井 排 走 向与 最 大 主 应 力 方 向一 致 ，井 排 距 ５ ０
                                                                                                                                        ０　
ｍ ×１０ｍ；坚 持 “ 水 量 、长 周 期 ” 超 前 注 水政 策 ，超 前 注 水 量 ２６ ０— 　０　 　
      ２　             小                                                           　０ ３０ ０ｍ ，超 前 注 水 天 数 为 １０ｄ
                                                                                                                              ４ 　 ，压力　
保持水平达到 １０ ～１０
                   　％
                   １        ２ ％时投产 ；油井改造推广应用前 置酸加砂压 裂工艺 ，针对 个别厚 油层采用 多级加砂压　
裂 工 艺 技 术 ；采 油 井 流 压控 制在 ３ ５～ ．　 ａ
                                           ． ４ ５ＭＰ ，生 产 压 差 控 制 在 ７５ＭＰ 左 右 。 为 鄂 尔 多 斯 盆 地 超 低 渗 透 储 层　
                                                                                    ．　 ａ
的高效开发提供借 鉴。