دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a roller cone bit that is specially designed for air or gas drilling. It is very similar to a regular bit, but features screens over the bearings to protect them from clogging with cuttings and thicker hardfacing on the shirttail to protect them from abrasive, high-velocity air or gas drilling fluid.

n: see tail gate.

n: a packer designed for sitting on a pipe that rests on bottom, such as a tail pipe or liner. See packer:

n: a glass-stem thermometer in which the tail is bent at an angle to the stem so that the tail can be mounted in a horizontally disposed thermowell, leaving the scale vertical for greater ease of reading.

n: A method of cementing. Put a stop means below the section of cementing, fill the tailored slurry in the bailer, land to the desired location, open the bailer and make slurry in the well. Repeat the process till all slurry poured into the well.

n: an extraction plant without fragmentation facilities.

n: how much weight the brake can stop in a given length of time. branch line n: a line, usually a pipe, joined to and diverging from another line. branded distributor n: gasoline wholesaler who, under the suppliers brand name, provides his or her own financing, transportation, and storage and who may also retail.

n: a procedure whereby the formation immediately below the casing shoe is subjected to a pressure equal to the pressure expected to be exerted later by the drilling fluid or by the drilling fluid and the back-pressure created by a kick. See leakoff test.

a LOT or an FIT test (check specifics for details),a pressurized test after primary cementing to make sure the bottom most seal with the formation will handle pressures needed for drilling the rest of the well.

n: Setting a centrifugal pump of low pressure feed flow at tail pipe in order to improve intaking ability of pump.

a device with a single bit running the width of the hole. Also called a dove-tail bit.