Underground Blowout

22 January 2017 Good morning. I have 2 questions which are referring to underground blow out. First, to have an underground blow out, is If you haven't calculated correct the kick tolerance. For example your well can withstand 40 bbl and you got 50 bbl. My question is, after you have shut in the well, you can have an directly fracture of the formation under the shoe, or during the circulation of the kick out to the surface, when the kick is in the casing shoe, then you fracture the formation (because the kick has the same pressure).
My second question is when you have a pressure of formation a little bit higher than expected, but still you dont have any problems because your mud pressure is still higher, when its time for shift handover are they gonna recalculate the kick tolerance? 
Thank you for your time

3 Answer(s)

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