دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a laboratory unit used for evaluating or testing drilling fluids. One gram of material, when added to 350 millilitres of fluid, is equivalent to 1 pound of material added to one 42-gallon barrel of fluid.

a laboratory measuring scale for expressing mixtures of products used to formulate muds. One gram of material added to 350 cc of liquid is equivalent to 1 lb of material added to a 42 gallon barrel.

n: (cm3) a commonly used unit of volume measurement in the metric system equal to 10-6 cubic metre, or I millilitre. The volume of a cube whose edge is 1 centimetre.

n: a current-measuring instrument that is suspended by a buoy and lowered to a specified ocean depth. The effect of the current on the drogue is shown by the movement of the buoy at the surface. capacities of about 50 to 55 US gallons, or about 200 litres.

n: a unit of measure of liquid capacity that equals 3.785 litres and has a volume of 231 cubic inches (0.00379 cubic metres). A gallon of water weighs 8.34 pounds (3.8 kilograms) at OOF (16"C). The imperial gallon. formerly used in Great Britain. equals approximately 1.2 US gallons.

n: in sampling petroleum and petroleum products, a small sample, usually 1.5 millilitres (0.05 ounce),obtained by the probe and sampler in an automatic sampling system. Several grabs constitute a sample. graben n: a block of the earths crust that has slid downward between two faults. Compare horst.

n: a classification given to a group of commercial drilling-clay preparations having a yield of 35 to 50 barrels (5,565 to 7,950 litres) per ton and intermediate between bentonite and lowyield clays. Usually prepared by peptizing low- yield calcium montmorilionite clays or, in a few cases, by blending some bentonite with the peptised low-yield clay.

abbr: litre.

n: (L) a unit of metric measure of capacity equal to the volume occupied by 1 kilogram of water at 4.C and at the standard atmospheric pressure of 760 millimetres.

n: commercial clay chiefly of the calcium montmorillonite type and having a yield of approximately 15 barrels per ton (2,385 litres per tonne).

n: a decimal system of weights and measures based on the metre as the unit of length, the gram as the unit of weight, the cubic metre as the unit of volume, the litre as the unit of capacity, and the square metre as the unit of area. The international system of measurement (SI) is based on the metric system.