دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The soda-lime glass bottle used to hold the hydrofluoric acid. Early directional drilling used acid bottle to survey the inclination.

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.

n: A kind of computational method of directional well. It is used widely because it is simple and precise.

n: The combination of drill tool that decreases the deviation angle in directional drilling.

n: The combination of drill tool that holds the deviation angle in directional drilling.

n: the part of a groove on the drawworks drum that changes direction. Grooves run parallel to each other, except in the angle-control section, where each groove is machined at a slight angle. This angled part of the groove causes the wire rope being spooled onto the drum to change direction so that the next wrap of rope on the drum lies in between the wraps of rope already on the drum. Also called a crossover section.

n: The character that the formation presents different intension in different direction.

a secondary fault, often in a set, with opposite direction to the primary fault.

n: The pressure deficiency through the flowing direction due to friction resistance when drilling fluid flows in the annular.

a secondary fault, often in a set, with an opposite direction to the primary fault.