دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the loss of quantities of whole mud to a formation owing to caverns,fractures or highly permeable beds,also referred to as lost returns.

n: the quantities of whole mud lost to a formation, usually in cavernous, fissured, or coarsely permeable beds. Evidenced by the complete or partial failure of the mud to return to the surface as it is being circulated in the hole. Lost circulation can lead to a blowout and, in general, can reduce the efficiency of the drilling operation. Also called lost returns. low vapour pressure liquid

n: the loss of quantities of whole mud to a formation owing to caverns,fractures or highly permeable beds,also referred to as lost returns.

during circulation, when less fluid returns to the surface than was injected into the well. Severe lost circulation is the loss of all returns.

n pi: see lost circulation.

n: the loss of quantities of whole mud to a formation owing to caverns,fractures or highly permeable beds,also referred to as lost returns.

loss of returning fluid during circulation of a well.

n: when the mud volumn pressure above the layer bearing pressure or encounter the fracture or cave, the mud entirely or partialy loss.

loss of whole mud to the formation.

n: all the components of the drilling mud, including reactive and nonreactive solids and the liquid phase (filtrate).