دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: (Ω) a unit for measuring electrical resistance. One ohm is equal to the resistance through which a current of 1 ampere will flow when a potential difference of 1 volt exists across a circuit.

electrical unit of resistance. One ohm is the the resistance through which a potential of one volt will maintain a current of one ampere.

n: a unit for measuring electrical resistance. If a container with sides of 1 metre each is filled with a solution and a resistance of 1 ohm is measured when a current is passed through the container from one face to the opposite face, the resistivity of the unit volume is 1 ohmmeter.

E=IR, I=E/R, or R=E/I, the current I" in a circuit is directly proportional to the voltage "E", and inversely proportional to the resistance "R".

n: a simple or complex liquid mixture of hydrocarbons that can be refined to yield gasoline, kerosene, diesel fuel, and various other products.

n: an item of production equipment used to separate liquid components of the well fluid from gaseous elements. Separators are either vertical or horizontal and either cylindrical or spherical. Separation is accomplished principally by gravity, the heavier liquids falling to the bottom and the gas rising to the top. A float valve or other liquid-level control regulates the level of oil in the bottom of the separator.

n: schlumberger wireline tool that used for microinduction sensor to measure the variations of formation conductivity. Applications include determination of stuctural dip when non-conductive mud is in use and borehole geometry.

n: the amount of oil in volumepercent in a drilling fluid.

n: The volume percent of oil in a mud. The term should not be used to refer to the amount of synthetic fluid.

a jarring tool, capable of very large impacts that is cocked and then triggered by oil moving through an orifice.

n: a drilling mud, e.g., oil-base mud and invert-emulsion mud, in which oil is the continuous phase. It is useful in drilling certain formations that may be difficult or costly to drill with water-base mud. Compare oil-emulsion mud.

n: 1.A mud in which the external phase is a product obtained from an oil, such as diesel oil or mineral oil. 2.More generally, a mud system that has any type of nonaqueous fluid as the external phase. This definition would include the newer variety of oil mu