دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: (nautical) a sprocket tooth in a wildcat.

well head flowing pressure.

v: see heat a connection.

n: oscillation along the longitudinal axis of the drill stem.

n: a long steel casing that uses an inclined plane to cause the bit to deflect from the original borehole at a slight angle. Whipstocks are sometimes used in controlled directional drilling, in straightening crooked boreholes, and in sidetracking to avoid unretrieved fish.

n: A device inserted in a well bore used for deflecting or for directional drilling.

a hardened steel ramp along which a mill turns as it cuts a hole in the side of the casing to start a sidetrack or lateral wellbore.

n: a special purpose packer placed in the casing to permit a sidetrack operation.

a detrimental condition where a bit bites into a part of the hole off center and forms a pivot point that creates impact of the bit and some of the string with the borehole wall.

shorter chain hydrocarbon liquids, generally after refining.

n: a wave with a white, foamy top.