دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a slickline tool used to place or remove sand or similar small grains from a wellbore.

n: a device used to remove sand from the wellbore. It sucks up sand by creating a partial vacuum and traps the sand by closing at the bottom.

n: any method by which large amounts of sand in a sandy formation are prevented from entering the wellbore. Sand in the wellbore can cause plugging and premature wear of well equipment. See gravel pack, sand consolidation, screen liner:

one of various mechanisms for controlling formation sand movement during fluid production from a weakly consolidated sandstone.

n: a column of sand that has entered and accumulated in the wellbore.

v: to plug a well inadvertently with proppants during formation fracturing. Sanding out is usually the result of a slowed fracture-fluid velocity, or screening effect, which allows the proppants to become separated from the fluid instead of being carried away from the wellbore. Also called screening out.

adj: 1. of a well, under restricted production because of sand accumulation in the wellbore. 2. impeded or hindered, especially because of sand accumulation.

n: a measure of heating value for natural gas that is fully saturated with water vapor under standard temperature, pressure, and gravity conditions. This is typically a laboratory condition to standardize the amount of water vapor in the gas at a convenient, albeit arbitrary, level. This standard of measure usually has little or nothing to do with the state in which the gas is actually delivered for first sales.

prediction of where in the wellbore that scale minerals are oversaturated in solution and could form scale. Not necessarily where scale will form.

65 lb/ft3 or 8.68 lb/gal (1.04 g/cc).

n: the point in the wellbore at which the bottom of the casing is set.