The problem of oil,gas and water channeling caused by cement slurry weightlessness is an urgently to be solved task for improving well cementing quality and protecting oil and gas reservoirs.

• 水泥浆失重所造成的油、气、水窜问题，是提高固井质量、保护油气层急待解决的重要课题。现有的预测和防止水泥浆气窜的方法虽然很多，但应用于现场却有一定困难。