Exciting force and amplitude of electric vibrator used in vibration cementing

In order to make the cement slurry generate vibration in the phase of waiting on cement, and thus improve the cementing quality and interface cementing strength, an electric vibrator was developed. This vibrator is provided with power by a high-temperature battery to allow the high-temperature motor to generate vibration. It is fitted at the end of the string. Thus, the conventional cementing technique would not be changed. The exciting force of the vibrator was calculated as 1 732 N based on configuration design and mechanical analysis. With the energy approach and the parameters of a well, the amplitude of the vibrator generated in the vertical well casing where elastic centralizer was installed was analyzed and calculated, thereby providing theoretical guidance for the field test of vibration cementing tools.