三元复合驱不压井技术研究

摘要

Production well of ASP flooding in Daqing oilfield second oil production plant causes the failure of snubbing tools due to serious scaling,, based on this, ASP flooding snubbing technology is studied. Using this technology, 10 wells are tested on the scene in peak period of scaling of ASP flooding in Daqing oilfield second oil production plant, and the success rate of a snubbing and secondary snubbing is 100%.%针对大庆油田采油二厂三元复合驱油采出井因结垢严重而导致不压井工具失效的问题,进行了三元复合驱不压井技术研究.利用此技术在大庆油田采油二厂三元复合驱结垢高峰期现场试验10口井,一次不压井和二次不压井成功率达100％,实现起下管柱时井下防喷.