Through the indoor experimental study, this paper defines the reservoir characteristics and sensitive situations, analyzes the reservoir damage mechanism, and combined with advanced water injection, research and develop the countermeasures of"advance anti-swelling, early dispensing" and "control injection strength, maintain balanced injection", so as to form technology that combined the pre-stratification, gradient anti-swelling with the pulse anti-swelling in the middle of post-injection process, determine reasonable injection pressure, injection amount and other parameters. The effects are notable after be implemented in scene. The oil deposit in Baijiantan group of Baikouquan 71 well area has stable injection pressure, good absorbent situation and utilization degree.%院通过室内实验研究，明确储层特征及敏感性情况，系统分析了储层损害机理，并结合超前注水，研究制定出“先期防膨、早期分注”与“控制注水强度、保持注采平衡”对策措施，形成了先期分层、梯度式防膨与后期注水过程中段塞脉冲式防膨相结合的工艺技术，确定了合理的注入压力和注入量等参数。投入现场实施后效果显著，百71井区白碱滩组油藏注入压力保持稳定，吸水状况良好，动用程度良好。
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