深层低渗油藏分酸工艺的研究与应用

The Research and Application of Separated Layer Acid Treatment Technology in the Deep Zone and Low Permeable Oil Reservoir

长期的油田开发过程中,深层低渗油藏的油水井在生产过程中因种种因素易导致地层堵塞,致使油井产量下降、注水井注水量降低或注不进,以疏通地层为目的的解堵措施逐年递增。为提高措施效果,对深层低渗油水井地层堵塞机理和特征进行研究,并采取配套、适应性强的解堵工艺,降低储层伤害,提高解堵措施现场应用效果,达到增产增注目的。

In the process of developing the oil - water well, some factors lead to layer blockage, so the oil output and waterflood rate went down, and more and more measures were used to dredge the layer year by year. For the purpose of improving the oil output and waterflood rate, the plugged mechanism and features in the deep zone and low permeable oil reservoir were studied. At the same time, the matched and adaptable technologies were put into effect to decline the damage in the reservoir, and improve the effect of removing blockage.