دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: one of the extremely small particles of an atom that is ejected from a radioactive substance (such as radium or uranium) as it disintegrates. Alpha particles have a positive charge.

the initial wave of gravel transport when packing a well with a deviation over 55o.

n: The adjustable variables in optimization of drilling recommendation.

a patented screen design that allows gravel packing slurry to flow past an annular bridge point that would normally stop the placement of gravel.

n: Breaks at different joints in turn in order to check every joint periodically and avoid joint galling and thread fracturing.

n: (A C) current in which the charge-flow periodically reverses and whose average value is zero. Compare direct current.

n: The current whose intensity and direction alter periodically with time.