The advantage of foamedcement is the decreased slurry density.
泡沫水泥的优点在于减小水泥浆的密度。
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Because foamedcement 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 foamedcement.
The impedance of foamedcement is lower compared to conventional cement. It may lead to wrong results to assess the coupling be - tween foamedcement and pipe from the amplitude of CBL.