دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: congressional act that protects navigational safety and the resources of navigable waters. Under the act, vessel operators must notify port authorities of any hazardous condition," which includes fire, leaking cargoes, or anything that could adversely affect the environmental quality of any US port, harbor, or navigable water.

n: the sticking that caused by the drilling fluid volume above the layer pressure.

n: A type of fluid pump in which the displacement volume of the pump is fixed for each rotation of the pump. Generally associated with high-pressure applications, positive-displacement pumps are commonly used in drilling operations to circulate the drilling

n: a mechanical fluid-measuring device that IDeasmes by filling and emptying chambers of a specific volume. The displacement of a fixed volume of fluid may be accomplished by the action of reciprocating or oscillating pis- tons, rotating vanes or buckets, nutating disks, or tanks or other vessels that automatically fill and empty. Also called a volume meter or volumeter.

n: a reciprocating or a rotary pump that moves a measured quantity of liquid with each stroke of a piston or each revolution of vanes or gears. positive-pressure self-contained breathing apparatus (SCBA) n: a face mask and portable air tank used for the purpose of breathing in contaminated atmospheres.

n: a relatively small tank with an accurately calibrated volume used to prove a meter. Liquid is flowed from the meter and into the tank until the calibrated level is achieved. The volume of liquid in the tank is then compared with the volume the meter recorded. If required. the meter is adjusted or a special factor is used to correct the meter. Also called a closed stationary tank prover.

n: the vertical distance from the bottom of the tank or datum plate to the reference point on the hatch;nonnally engraved on or near the reference point.

n: one of the alkali metal elements with a valence of 1 and an atomic weight of about 39. Potassium compounds, most commonly potassium hydroxide (KOH),are sometimes added to drilling fluids to impart special properties, usually inhibition.

n: An element with an atomic number of 19. The 40K isotope is radioactive, decaying with the emission of a single gamma ray of 1.46 MeV with a half-life of 1.3 * 109 years to give a stable isotope of argon. Potassium is the largest source of natural radioact

one of the natural isotopes that as a trace element may incorporate into the matrix of naturally forming barium or strontium sulfate scale and make it a very low level radioactive material (NORM scale).

n: the maximum volume of oil or gas that a well is capable of producing, calculated from well test data.