دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the quality of being either negative or positive;in magnetism. the north or south pole of a magnet.

n: in nature, molecule sconsist of group of atoms bonded together. Overall the electrial charge is zero beause the number of protons and electrons balance. However some covalent molecules may express polarity, where the electrical charges, though balanceing

the sealing plug over a charge on a reusable perforating gun.

n: a device made up in a tubing or workover string that has openings (ports) through which fluid can be circulated.

n: any system or method by which surveillance is maintained on the position of a floating offshore drilling rig in relation to the subsea well-head when the rig is dynamically positioned. The rig should always be directly over the wellhead to minimize wear on subsea equipment and to facilitate operations involved with the equipment. See acoustic position reference. tau/line positionreference system.

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.

Possible reserves are those unproved reserves which analysis of geological and engineering data suggests are less likely to be recoverable than probable reserves. In this context, when probabilistic methods are used, there should be at least a 10% probabi

n: 1. a receiving tank situated at the end of the mud return line. The flow of mud comes into the bottom of the device and travels over baffles to control mud flow over the shale shaker. 2. a metal box under a truck bed that holds pipeline repair tools.

n: it stands on the end of mud return tube,after fluid enter this tank and through baffle, then the mud flows to the shaker.


an enlarged section of a tank for settling solids.

a rig floor tool that can rotate a string.