塔河油田奥陶系稠油油藏井下作业压井工艺技术

Technology of downhole well killing in Ordovician heavy-oil reservoir of Tahe oilfield

针对目前塔河油田稠油井不同的井下作业工艺,结合稠油油藏特点,总结出一套适用稠油油藏井下作业的压井工艺技术,对提高稠油井压井作业成功率,减少压井液用量及其对储层的污染,保证修井作业的顺利,具有一定的指导意义。

In view of different downhole operation processes currently used in the heavy oil wells of Tahe oilfield,and combined with the characteristics of heavy oil reservoir,this paper summarizes a set of well killing technology suitable for the downhole operations of heavy oil reservoir,which has a certain guiding significance in improving the success rate of heavy oil well killing operation,reducing the consumption of drilling fluid and its pollution on reservoirs and ensuring the successful workover operation.