دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a tank in which oil is stored pending transfer by pipeline, truck, or other vehicle for selling.

n: a tubing safety valve.

A flow controlled shut-in device to control flow in the event of loss of surface well control. Must be reset periodically. Replaced by ScSSVs.

n: a rotational shear viscometer used for measuring the viscosity and gel strength of drilling fluids. This instrument has been largely superseded by the direct-indicating viscometer.

n: two packers separated by a spacer of variable length. A straddle packer may be used to isolate sections of open hole to be treated or tested or to isolate certain areas of perforated casing from the rest of the perforated section.

n: A kind of equipment used to packoff layer,which include two packer.

a twin sealing element device with a perforated nipple in between. It is used to selectively inject fluids into a part of the zone.

n: a hole that is drilled vertically. The total hole angle is restricted. and the hole does not change direction rapidly no more than 3 per 100 feet (30.48 metres) of hole.

n: Vertical wellbore.It can be think as straight hole when well deviation and azimuth not exceeding the provided limit.

an essentially straight hole with less than 5o total deviation from surface to bottom hole and dogleg severity less than 3o/100 ft.

n pi: bundles of smalldiameter tubing tack-welded together in a concentric pattern and placed in the upstream section of an orifice-meter run for the purpose of reducing considerably the amount of straight pipe required upstream of the orifice. They eliminate swirls and crosscurrents set up by the pipe fittings and valves preceding the meter tube.

v: to measure and record the dimensions of oil tanks to prepare tank tables (gauging tables) for determining accurately the volume of oil in a tank at any measured depth.

measure the fluid level in a storage tank.

n: the measurement of the external diameter of a vertical or horizontal cylindrical tank by stretching a steel tape around each course of the tanks plates and recording the measurement.

a moderate to low energy deposit with permeability streaks where energy was higher. May be very limited in extent and volume.

n: an explosive method utilizing Primacord. which is an instantaneous textilecovered fuse with a core of very high explosive. It is used to create an explosive jar inside stuck drill pipe or tubing so that the pipe may be backed off at the joint immediately above where it is stuck.

n: An explosive line which ,when detonated ,imparts concussion to pipe causing it to unscrew or back-off.Also called Prima-Cord.

one to four strands of explosive detonating cord suspended by wireline in a well and exploded to “rattle” the pipe and drop scale and debris from the sides of the pipe. Used frequently in back-off operations (unscrewing a pipe joint downhole).