دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

adj: not susceptible to or affected by vapors. For example, an electrical switch is made vaporproof so that a spark issuing from it will not cause an explosion in the presence of combustible gases (vapors).

n: a Spanish unit of measurement, equal between 31 and 34 inches (78.74 and 86.36 centimetres). In Texas, it is equal to 33.33 inches (84.65 centimetres). Though an ancient unit of measurement, varas often show up on old survey reports in Texas and the southwestern US.

n: see sample rotameter float.

n: Pipe rams that can close over a range of pipe sizes.VBRs cannot be used to hang off the drillstring.

a ram element in a BOP that will fit more than one size of pipe. Commonly a ram element that can seal around the pipe body or the coupling.

n: a clearance pocket that can be adjusted to provide varying amounts of clearance space in a compressor cylinder.

n pI: the annual cost of operating and maintaining the system as well as fuel, gas loss, and unaccounted-for gas costs.

n: The halide hydrocarbon mixed liquor in the measuring cylinder,which be used to measure the volumic density of cuttings in wellsite.Its density increase along the depth of fluid column.

n: A kind of special pipe ram,which can seal the string of different size .

a mechanism that allows the motor speed and power to optimally match the requirements of a pump.