دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: see lost circulation.

n: The reduced or total absence of fluid flow up the annulus when fluid is pumped through the drillstring. Though the definitions of different operators vary, this reduction of flow may generally be classified as seepage (less than 20 bbl/hr [3 m3/hr]),part