Line Pack

Line Pack

Definition(s)

Line Pack

Increase in volume of fluid in the line or vessel caused by an increase in pressure. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Line Break Detector

Line Break Detector

Definition(s)

Line Break Detector

Automatic valve operator that activates if the rate of pressure drop exceeds a pre-set amount, thereby limiting fluid loss to the section in which the line break occurs. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Linear Valve Flow Characteristic

Linear Valve Flow Characteristic

Definition(s)

Linear Valve Flow Characteristic

Proportional increased flow by equal opening increments of the valve. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Line Section

Line Section

Definition(s)

Line Section

Segment of line or vessel between two terminals. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Line Pack or linepack

Line Pack or linepack

Definition(s)

Line Pack or linepack

  1. volume of fluid in the pipe at flowing pressure and temperature; 2) increased volume of a fluid within a given pipe due to increased pressure.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Line Looping

Line Looping

Definition(s)

Line Looping

see: loop and looping. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Line Fill

Line Fill

Definition(s)

Line Fill

Sequence of commodities in the line. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Leak Detection

Leak Detection

Definition(s)

Leak Detection

Examining and reporting any anomalies in the line or vessel hydraulics. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Law of Conservation of Energy

Law of Conservation of Energy

Definition(s)

Law of Conservation of Energy

Prohibits creation or destruction of energy. Work changes energy from one form to another (heat to mechanical).. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Laminar Flow

Laminar Flow

Definition(s)

Laminar Flow

Fluid flow where fluid layers at the center of the line or vessel move faster than the layers next to the pipe wall. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Kinetic Energy

Kinetic Energy

Definition(s)

Kinetic Energy

Energy an object has because of its motion. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Kinematic Viscosity

Kinematic Viscosity

Definition(s)

Kinematic Viscosity

The ratio of a fluid's absolute (dynamic) viscosity to its density. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Kinematic Viscometer

Kinematic Viscometer

Definition(s)

Kinematic Viscometer

A device that measures efflux times in determining kinematic viscosity. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Kill

Kill

Definition(s)

Kill

Action taken to kill well and prevent or correct blowout. Includes circulation of heavy weight fluid downhole, circulating kick out, and closing of blowout preventers. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Kelvin

Kelvin

Definition(s)

Kelvin

Metric absolute temperature unit (degrees Celsius + 273.16).. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Jetting the Well in

Jetting the Well in

Definition(s)

Jetting the Well in

Circulating a lower – density fluid to allow the well to go underbalance, either to drill in underbalance mode or to induce production from the formation. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Interlocks

Interlocks

Definition(s)

Interlocks

Software or hardware that allows or prevents motors from starting, or valves from opening or closing. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Intake Nozzle

Intake Nozzle

Definition(s)

Intake Nozzle

Suction nozzle. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Instantaneous Measurement

Instantaneous Measurement

Definition(s)

Instantaneous Measurement

Value of the measurement at a specific instant in time. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Inertia

Inertia

Definition(s)

Inertia

Force that keeps a stationary body from moving and a moving body from changing speed or direction.. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Induction Motor

Induction Motor

Definition(s)

Induction Motor

Motor that uses current induced into the rotor by electromagnetic fields in the stator. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Indirect Heater

Indirect Heater

Definition(s)

Indirect Heater

Vessel that heats a fluid without using a direct flame. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Incompressible Fluids

Incompressible Fluids

Definition(s)

Incompressible Fluids

Fluids having very little change in volume as pressure is significantly increased or decreased.. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Inside BOP

Inside BOP

Definition(s)

Inside BOP

Installed in a drill string to prevent a blowout inside the string. Inside BOPs are essentially a check valve preventing flow up the drill string while allowing flow down the drill string. Also called Internal Blowout Preventer, and IBOP. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Hydraulics

Hydraulics

Definition(s)

Hydraulics

Set of laws governing the behavior of fluids at rest and in motion. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Hydraulic Profile

Hydraulic Profile

Definition(s)

Hydraulic Profile

Hydraulic gradient. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Hydraulic Horsepower

Hydraulic Horsepower

Definition(s)

Hydraulic Horsepower

Actual energy imparted to fluid flowing through a pump or compressor. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Hydraulic Head

Hydraulic Head

Definition(s)

Hydraulic Head

Pressure exerted by the weight of a column of liquid. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Hydraulic Gradient (grade line)

Hydraulic Gradient (grade line)

Definition(s)

Hydraulic Gradient (grade line)

Graphical representation of the change in pressure or head with respect to distance along the line or vessel.. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Hydrates

Hydrates

Definition(s)

Hydrates

Solids (ice) that form when water vapor in gas cools; can be a high temperature based on the amount of CO2 and H2S. Source: IADC UBO / MPD Glossary, December 2011. Global Standards