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红河油田位于甘肃省庆阳-平凉一带,在区域构造上属于鄂尔多斯盆地天环向斜南部。12井区位于红河油田的东北部,主要采取排状交错水平井井网,目前主要依靠弱弹性驱+溶解气驱的方式开采,水驱动用储量较小,油井自然递减率大,目前油藏采出程度仅为1.29%,因此注水补充能量势在必行。通过对注水试验井组见效特征统计,证实12井区裂缝性油藏实施“平注平采”的可行性。本文对红河油田12井区的水平井注水参数进行优化对今后生产提供理论依据。
The Honghe Oilfield is located in the Qingyang-Pingliang area of Gansu Province and belongs to the southern part of the Tianhuan anticline in the Ordos Basin. Well 12 is located in the northeastern part of Honghe Oilfield and mainly uses horizontal and well-aligned staggered horizontal well patterns. Currently, it is exploited by means of weak elastic flooding and dissolved gas flooding, with small reservoirs for water drive and large natural decline rate of oil wells. Currently, The recovery rate is only 1.29%, so filling water is imperative. Through the statistical analysis of the effective characteristics of the injection well test well, it is proved that the “fracturing reservoir” in the well 12 well is feasible. In this paper, the horizontal well injection parameters in Honghe Oilfield 12 well are optimized to provide theoretical basis for future production.