دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the methyl orange alkalinity of the filtrate, reported as the number of millimetres of 0.02 normal (N/50) acid required per millimetre of filtrate to reach the methyl orange end point (pH 4.3). M1 is a measure of the alkalinity of the drilling fluid. Usually, drilling fluids should have a high pH value (alkalinity) to ensure that they perform as they should.

n: a workover rig. usually lightweight, that is specially built to run a string of 3/4-inch or 1-inch (1.9- or 2.54- centimetre) tubing. See macaroni string.

n: a special light weight type workover rig.

n: the hot fluid matter within the earths crust that is capable of intrusion or extrusion and that produces igneous rock when cooled.

molten rock (lava) that crystallizes into an igneous rock.

n: a surveying instrument that provide a serious of phtographic disc showing the derection by means of a magnetic compass, and so direction is referened to magnetic north.

n: an alternator with permanent magnets, which is used for generating current for the ignition system of an internalcombustion engine.

n: magnetostriction vibration mainly caused by change of magnetic field, thus it causes change of magnetic material. The vibration that caused by alternating current through sympathetical steel magnet core, which force to bit, the speed higher than the trad

n: a tightly banded scroll of special steel that vibrates when a magnetic field is applied to it. The vibration of the scroll sets off a transmitter, which is alternately switched on and off at 15 to 60 times per second. The transmitter causes compressional sound waves to travel through the formations surrounding the borehole. Each formation material will exhibit its own characteristic effect on the elastic wave propagation.

n: a large oil company, such as Exxon, Chevron, or Mobil, that not only produces oil, but also transports, refines, and markets it and its products.

typically a large operator, usually a multinational oil company that is usually a large producer in several areas of the world.

n: Water added to a maintain or dilute a water-mud system. The added water may be fresh water, seawater or salt water, as appropriate for the mud. Make-up water volume is an important parameter in a material balance check on solids content and solids removal