塔河油田修井施工中运用常规压井技术进行压井作业时,往往会造成稠油堵塞井筒、长时间压井而达不到压井效果、压井液先漏失后井喷、稠油返到地面后硬化回收困难等技术难题。我们经过不断总结、研究和现场实践,探索形成了一套反循环节流压井和泄压补液压井的非常规压井技术,通过对200余口施工井的应用均取得了良好效果,保证了修井作业的顺利施工。 In the process of well killing in Tahe Oilfield, conventional well killing techniques often cause well blocking of the wellbore during well killing operations. The well killing can not be achieved for a long time and the well killing fluid leaks and blowout occurs first, and heavy oil returns Ground hardened recycling difficulties and other technical problems. Through continuous summarization, research and field practice, we have explored the formation of a set of unconventional kill technology of anti-circulation choke and pressure relief rehydration well, and achieved good results through the application of more than 200 construction wells, ensuring Well workover well construction.