常规油井注水泥一直是凭经验进行设计，固井质量无可靠把握。
Due to conventional cementing is designed by rule of thumb, cementing quality can't be assured.
解决注水泥作业的防气窜问题，是提高固井质量，保护油气层的关键技术。
It is a key technique of raising cement job quality and protecting oil and gas reservoirs to solve the problem of gas channeling prevention in cementing job.
若按照常规下套管后再注水泥，由于环形间隙小，施工难度大，难以保证固井质量。
It is difficult to guarantee the cementing quantity when using conventional cementing because narrow annulus between casings.
应用推荐