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柳125-25井属于低渗透裂缝型油井,根据油藏特性开展了以RD-1冻胶调剖剂进行深部调剖的研究。结合室内试验和现场试验确定了低渗透裂缝型油藏深部调剖剂的基本配方,考察了聚合物、交联剂、促交剂用量对凝胶黏度、成胶时间的影响。结果表明,配方体系适应该油井,该调剖剂已在柳125-25井整体调剖中得到应用,取得了良好的堵水效果。
Well 125-25 is a low permeability fractured oil well. Based on the reservoir characteristics, deep profile control with RD-1 gel profile control agent was carried out. Combined with laboratory test and field test, the basic formulation of deep profile control agent for low permeability fractured reservoir was determined. The effects of polymer, crosslinking agent and accelerant on gel viscosity and gel forming time were investigated. The results show that the formulation system adapts to the well, and the profile control agent has been applied in the overall profile control of Liu125-25 well and good water blocking effect has been achieved.