دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The maximum volume rate processed effectively by degasifier.

n: The ratio of the quantity of addition agent be added to the the volume of drill fluid.

n: (TSD) a facility that treats, stores, or disposes of hazardous waste above certain volume limits and beyond certain time periods. If hazardous waste is stored or collected for shipment, generators need to be aware that exceeding volume and time limits can cause a generator site to be classed as a TSD facility. RCRA places rigorous controls on TSD facilities and they must have permits.

n: short for Christmas tree, which is the valves and fittings placed on top of a flowing well to control production.

a blind flange over a valve at the top of the tree.

n: a tubular device employed as an isolation tool inside the Christmas tree that protects the tree from the very high pressures that occur during well stimulation. trend n: the directional line of a rock bed or petroleum deposit.

n: 1. the difference between fore and aft draft readings on a marine vessel or an offshore drilling rig. 2. the use of special corrosion-resistant metals in blowout preventers, valves, and other oilfield devices to minimize the effects of hydrogen sulfide. v: 1. to minimize the difference between fore and aft readings. 2. to install H2S corrosionresistant materials in oilfield equipment used in H2S environments.

n: a correction applied to cargo ullages when the vessel is not on an even keel. Valid only when liquid completely covers the tank bottom and is not in contact with the underside of the deck.

n: the operation of hoisting the drill stem from and returning it to the wellbore. v: shortened form of make a trip." See make a trip, overspeed governor.

n: The complete operation of removing the drillstring from the wellbore and running it back in the hole. This operation is typically undertaken when the bit becomes dull or broken, and no longer drills the rock efficiently.


pulling all pipe from the well and rerunning the pipe to bottom.

n: a small mud tank with a capacity of 10 to 15 barrels (1,590 to 2,385 litres),usually with 1-barrel or � barrel (159-litre or 79.5-litre) divisions, used to ascertain the amount of mud necessary to keep the wellbore full with the exact amount of mud that is displaced by drill pipe. When the bit comes out of the hole, a volume of mud equal to that which the drill pipe occupied while in the hole must be pumped into the hole to replace the pipe. When the bit goes back in the hole, the drill pipe displaces a certain amount of mud, and a trip tank can be used again to keep track of this volume.

n: A kind of private small metal can with scale,which be used to complement drill fluid when trip out .

a smaller tank that holds the fluids form running or pulling a string of pipe. Because of its smaller volume, it is used to quickly spot incoming kicks or fluid losses.