低聚合物加量胶凝剂的研究及在塔河油田中的应用

STUDY ON ACID GELLING OF LESS ADDITIVE AND ITS APPLICATION IN TAHE OILFIELD

针对塔河油田碳酸盐岩储层裂缝、孔洞发育、酸液滤失大的特点,完成了稠化剂分子的合成,着重加强了酸液的高温粘度、添加剂的配伍性评价。研究出的低聚合物加量胶凝酸体系,降低酸液滤失,实现酸液缓速和深穿透的目的。现场的酸压施工表明,优化的酸液体系不仅确保了施工的顺利进行,同时也有效地提高了产能。

To counter the characters of fracture, cavity development acid high and leaching, We have completed thecomposition of thickening agent, strengthened the evaluation of high temperature viscosity and compatibility of agent.The acid gelling of less additive can reduce leak in crack or hole and delay acid reaction to penetrating through farther.The new acid system not only works all right but also enhances production effectively.