Due to conventional cementing is designed by rule of thumb, cementing quality can't be assured.
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。
It is difficult to guarantee the cementing quantity when using conventional cementing because narrow annulus between casings.
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。
Because foamed cement has gas and the properties of gas are the function of pressure and temperature, the conventional cementing theory can not be used in cementing with foamed cement.
由于在泡沫水泥中含有气体，其中气体参数又是温度和压力的函数，因此在固井施工设计中不能采用常规固井理论进行相关计算。
应用推荐