دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a statistical wave that has a height equal to the average of the highest one-third of the waves in a particular area.

common measure of ocean wave conditions, approximately equal to the average of the highest one-third of the waves.

n: a mineral that has the chemical formula SiO2 (silicon dioxide). It is relatively hard and insoluble. Quartz is a form of silica, but usually contains impurities that give it color.

n: A chemically resistant dioxide of silicon that occurs in crystalline (quartz),amorphous (opal) and cryptocrystalline (chert) forms.

n: a silica (SiO2) ground to a fineness equal to that of portland cement.

n: the powder that milled by the silicon.

very fine mesh sand used as additives and fluid loss.

a desiccant for removal of water vapor from gas.

a high purity sand of specific size (0.088mm to 0.210mm) used in cement slurries to add weight.

n: crystalline compound composed largely of silicon in chemical combination with aluminum, magnesium, oxygen, and other common elements.

n: a material that exhibits little or no swelling and whose particle size ranges from 2 to 74 microns. Dispersed clays and barite fall into this particle-size range.

n: A term used to describe particle whose size is between 2 and 74 micrometers (200 mesh).

small sediment, usually 2 to 74 micron (200 mesh) particles.

an emulsion, usually breakable only with solvent that is stabilized by silt accumulation at the surface of the bubbles or droplets.

n: a fine-grained, shale like sedimentary rock composed mostly of particles 1/16 to 1/256 millimeter (1.6 inch to .10 inch) in diameter.