Flow line

Flow line

A [http://www.glossary.oilfield.slb.com/Display.cfm?Term=flowline Flow line] , used on a drilling rig, is a large diameter pipe (typically a section of casing) that is connected to the bell nipple (under the drill floor) and extends to the possum belly (on the mud tanks) and acts as a return line, (for the drilling fluid as it comes out of the hole), to the mud tanks.

The flow line will typically have equipment attached to it, such as a flow show which "shows" whether drilling fluid is flowing down the flow line or not and any changes in that flow. High-pressure jets are typically attached along its length to dislodge any obstructions (such as drill cuttings collecting in one spot) that may occur.

See Drilling rig (petroleum) for a diagram.


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  • flow line —    The general path that a particle of water follows under laminar flow conditions [22].    Flow lines are usually drawn perpendicular to equipotential lines.    See also equipotential line …   Lexicon of Cave and Karst Terminology

  • flow line —   a mapping technique using a line to show volume of a movement along a route. The width of the line is proportional to the size of the volume (i.e. a thicker line represents a higher volume). Could be used to show volume of movement of people or …   Geography glossary

  • flow line — Смотри линия тока …   Энциклопедический словарь по металлургии

  • heat flow line — šilumos srauto linija statusas T sritis fizika atitikmenys: angl. heat flow line; line of heat flow; line of heat flux vok. Wärmestromlinie, f rus. линия теплового потока, f pranc. ligne du flux de chaleur, f …   Fizikos terminų žodynas

  • Flow-line production — Поточное производство …   Краткий толковый словарь по полиграфии

  • line of heat flow — šilumos srauto linija statusas T sritis fizika atitikmenys: angl. heat flow line; line of heat flow; line of heat flux vok. Wärmestromlinie, f rus. линия теплового потока, f pranc. ligne du flux de chaleur, f …   Fizikos terminų žodynas

  • Flow show — A Flow show is a device on a drilling rig that is attached to the flow line and has a paddle that swings out as the flow of drilling fluid passes by it. The angle of the paddle increases as the volume of drilling fluid increases and pushes it out …   Wikipedia

  • line of heat flux — šilumos srauto linija statusas T sritis fizika atitikmenys: angl. heat flow line; line of heat flow; line of heat flux vok. Wärmestromlinie, f rus. линия теплового потока, f pranc. ligne du flux de chaleur, f …   Fizikos terminų žodynas

  • Flow measurement — is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive displacement flow meters acumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow. Other flow… …   Wikipedia

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