吐哈油田负压射孔工艺研究

Underbalanced pressure perforation in Tuha Oilfield

负压射孔在射孔瞬间由于负压差的存在,使地层流体产生反向回流,自动清洗射孔孔眼,可以避免孔眼堵塞和射孔液对地层的侵蚀损害,可以有效的保护储层、提高产能。本文对负压射孔工艺在吐哈油田的应用进行了研究。

Underbalanced perforation can be used to protect reservoir and enhance the output thanks to the difference of negative pressure at the moment of perforation which causes a reverse flow of the formation fluid and the perforation self-clean. Cloggy and the erosion of perforating fluid damage can be avoided significantly. This article describes the application of the technology in Tuha Oilfield.