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    New pulsating casing collar to improve cementing quality

    Chen, Ping / He, Kaiping / Wu, Jiang | Tema Archiv | 1998
    collar (PCC) is designed according to the Helmholtz oscillator to generate a pulsating jet flow by self-excitation in the cementing process. By ...
    Schlagwörter: Helmholtz-Oszillator