南堡油田东一段酸化技术研究

Research and Application of Acidizing Technique of the First Member of Dongying Formation of Nanpu Oilfield

针对冀东南堡油田东营组东一段油藏不同区块地层能量差异大、生产气油比高等特点,通过一系列酸液与储层岩石溶蚀试验、添加剂与酸液配伍性试验等工作,优选出一套适用于本区块的酸液体系。室内岩芯流动试验及泥浆伤害实验表明,该体系具有较高的储渗透率改善效果,达到了酸化解堵的目的。该体系具有良好的增产效果和广阔的推广应用前景。

The first member of Dongying Formation of Nanpu Oilfield has features of big energy difference between Formations and high gas/oil ratio.Acid dissolution experi Clients and compatibility experiments between acid and additive have been done to optimize a suit of acid system to satisfy the purpose of increasing production.According to the core displacement and mud damage experiments,the acid system could improve the permeability of reservoir and achieve the primary goal.The acid system has the excellent result of increase the production and wide application prospect .