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发表于 2013-11-15 08:33
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来自: 中国辽宁大连
BHP= Hydrjostatic pressure + circulating friction loss(annular pressure)+ any surface applied back pressure .bottom hole pressure >= formation pressure (forever kick will happen )
the drilling fluid reture from the annular space (casing and drilling pipe ), and then : if low pressure mud diverter , gumbo box ,shaker (desander ,desilter),and then mud will flow down to overflow desandertank ,desilter tank ,sandtrap tank and then the mud will flow back to mud pit .
if high pressure mud ,the mud will go through the choke manifold (HP-LP), poorboy degasser ,gambo box and then return back to shaker... |
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