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针对塔河油田碎屑岩油藏水平井多轮次堵水后,油井潜力变小,堵水单井增油减少,堵水有效率呈下降趋势的问题,提出了适合塔河油田超深大底水碎屑岩油藏条件的复合堵水增效技术。该技术是通过工艺上不同类型堵剂组合、不同强度段塞组合、堵剂用量和强度的增加,达到延缓多轮次堵水效果逐次递减趋势的作用。利用该技术研究成果在塔河油田TK107H井进行复合堵水现场试验,工艺上获得成功的同时取得了一定的增油效果。
Aiming at the problem of multi-turn plugging in the horizontal well of clastic reservoir in Tahe Oilfield, the potential of the oil well becomes smaller and the single well of plugged water decreases to reduce the effective efficiency of water plugging. Combined water plugging and synergistic technology of bottom water clastic rock reservoir. The technology is through the process of different types of plugging agent combinations, different combinations of slug strength, dosage and strength of the increase in blocking agent, to achieve the effect of delaying the effect of multiple rounds of plugging water decreasing gradually. Based on the research results of this technology, a field test was conducted in TK107H well of Tahe Oilfield to achieve the goal of increasing the oil yield while succeeding in the process.