井下温度补偿器的打捞方法

Fishing method of downhole temperature compensator

稠油热采工艺中 ,为了减少井筒热损失 ,提高井底注汽干度 ,有效保护套管 ,通常是封隔器与井下温度补偿器配套使用 ,但在生产过程中 ,井下温度补偿器经常断脱造成作业打捞事故 ,带来较大的经济损失。因此 ,在对打捞实践经验总结的基础上 ,研究了高效的打捞方法与打捞工具。该方法加快了作业施工速度 ,成功率达 10 0 %。

In heavy oil thermal recovery, packer and downhole temperature compensator are usually used together in order to reduce heat loss, improve bottom hole steam quality, and protect casing. However, during production, downhole temperature compensator often falls down and fishing will be required, causing economic loss. On basis of summarizing fishing experiences, high efficiency fishing method and tools have been developed. This method accelerates operation speed with a success ratio of 100 %.