Fracture charging or ballooning effects were evaluated while drilling high pressure, high temperature (HPHT) wells. A method based on analytical and numerical approaches for estimating the volumetric expansion of wellbores as a function of wellbore pressure is presented. Analysis showed that the diametric expansion of wellbore must be in the range of centimeters at the critical pressure and consumed a significant number of extra mud barrels before breakout.


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    Title :

    A practical method for evaluating effects of fracture charging and/or ballooning when drilling high pressure, high temperature (HPHT) wells


    Contributors:

    Published in:

    Publication date :

    2001


    Size :

    10 Seiten, 23 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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