دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a moisture-absorbing chemical compound, or desiccant, CaCI2, used to accelerate setting times in cement and as a drying agent. It is also added to fresh water to increase the waters weight and to give it desirable properties during well completion or workover.

n: CaCl2, a kind of absorption chemical compound.Usually used for calcium mud and heavy weight additive of completion fluid.

CaCl2, a water soluble brine weighting agent.

n: a substance able to remove water from another substance with which it is in contact. It may be liquid (e.g., triethylene glycol) or solid (e.g., silica gel).

n: a device for removing water from gas in which two or more packages, or beds, of solid desiccant are used. The desiccant bed is usually contained in a tower and wet gas is sent through one bed for drying while the other is prepared for later use.

n: a hygroscopic liquid, such as glycol, used to remove water from other fluids.

n: the depth of the solid desiccant bed, in a solid desiccant dehydration system, from saturation to initial adsorption. mast n: a portable derrick that is capable of being raised as a unit, as distinguished from a standard derrick, which cannot be raised to a working position as a unit For transporting by land, the mast can be divided into two or more sections to avoid excessive length extending from truck beds on the highway. Oil workers and manufacturers often use the words mast" and "derrick" interchangeably. Compare derrick.

n: wet gas that has been heated in a regeneration gas heater to temperatures of 400�- 460.F (204.- 238.C) in a solid desiccant dehydration system. The gas is passed through a saturated adsorber tower to dry the solid desiccant in the tower and remove the previously adsorbed water.

a desiccant for removal of water vapor from gas.

Snubbing usually requires an array of wireline blocks and wire rope that forces the pipe or tools into the well through a stripper head or blowout preventer until the weight of the string is sufficient to overcome the lifting effect of the well pressure on the pipe in the preventer. In workover opera- tions, snubbing is usually accomplished by using hydraulic power to force the pipe through the stripping head or blowout preventer. 2. to tie up short with a line.

n: see dry-bed dehydratol: