管外封隔器固井技术在临兴地区浅层气井的应用

Application of external packer cementing technology in shallow gas wells in Linxing area

浅层气井因气层埋藏浅、压力高,固井封固难度大,在水泥浆凝固过程中易发生气窜,轻则导致固井质量不合格,重则发生井喷等恶性事故。管外封隔器固井技术通过阻断油气上窜通道,保持环空压力稳定,可以实现浅层气的封固,解决浅层气井开发难题,实现了安全、优质开发。

Due to the shallow burial and high pressure of shallow gas well,it is difficult to cement well sealing and cementing.In the process of cement slurry solidification,the cementing quality is not qualified in the case of low pressure.By blocking the oil and gas channeling channel and keeping the annulus pressure stable,the outer packer cementing technology can realize the sealing and cementing of shallow gas,solve the difficult problem of shallow gas well development,and realize the safe and high quality development.