دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n pi: pre-calculated ships tables based on the wedge formula and displayed in much the same way as the ships innage/ullage tables. Used for small quantities when the liquid does not touch all bulkheads.

n: shortened form of boll weevil. See boll weevil.

an inexperienced worker.

n: a device for determining either the mass or the weight of a body, depending on the apparatus and procedure employed.

n: 1. in mud terminology, refers to the density of a drilling fluid. 2. of a measurement, expresses degree of confidence in result of measurement of a certain quantity compared with result of another measurement of the same quantity.

the weight of a particular tubing size, grade and weight on a weight per pound basis. Includes the weight of the coupling.

n: an instrument near the drillers position on a drilling rig that shows both the weight of the drill stem that is hanging from the hook (hook load) and the weight that is placed on the bit by the drill collars (weight on bit).

a string weight measurement device that can report the weight on the string at any time.

n: (WOB) the amount of downward force placed on the bit by the weight of the drill collars.

n: The weight on the drill bit when drilling.

v: to increase the weight or density of drilling fluid by adding weighting material.

n: Adding weighted material in the drilling fluid, which can increase the density of slurry.

increase fluid density.

n: a packer whose packing elements are activated when weight from the tubing string is applied. To set some packers, rotation as well as weight is required. See packer.