دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. the process of sucking up, taking in and making part of an existing whole. Compare adsorption. 2. the process in which short wave radiation is retained by regions of the earth.

n: The penetration or apparent disappearance of molecules or ions of one or more substances into the interior of a solid or liquid.

v: to move with a slight, irregular rhythm. Breathing occurs in tanks of vessels when vapours are expelled and air is taken in. For example, a tank of crude oil expands because of the rise in temperature during the day and contracts as it cools at night, expelling vapours as it expands and taking in air as it contracts. Tubing breathes when it moves up and down in sequence with a sucker rod pump.

n: Setting a centrifugal pump of low pressure feed flow at tail pipe in order to improve intaking ability of pump.

n: The intaking method that the fluid level of intaking can is higher than center line of pump cylinder in order to improve intaking ability of pump.

n: switches and devices to start. stop, measure, monitor, or signal what is taking place.

n: The process taking steps to prevent or take precautions against the metal being eroded.

n: A paying regulate in drilling contract. Usually taking this paying method when drilling into the hard formation or the operation which can not be paid by footage.

n pi: the basis for payment on drilling contracts when footage rates are suspended (as when the drilling rig is used in taking extra cores. logging. or other activities that delay actual drilling) or when the contract daywork rates. In effect, daywork rates pay the drilling contractor by the hour rather than by the foot.

n: See day rate charge.

n: taking account of future value in present calculations, i.e., determining present value of future dollars. Discounting is compounding in reverse.

n: (ESA) an act that declares the intentions of Congress to conserve threatened and endangered species and the ecosystems on which those species depend. ESA provides for federal designation of species determined to be endangered or threatened. It prohibits the taking of an endangered or threatened species of fish, wildlife, or vegetation.