Oilfield Terms Starting with "L"

A LACT Unit (Lease Automatic Custody Transfer) is a standardized, skid-mounted metering and sampling system used in the oil and gas industry to automatically measure…

A liner is a string of casing that is run into a wellbore and hung from the bottom of a previous casing string, rather than…

Liquefied Natural Gas (LNG) is natural gas that has been cooled to approximately -162°C (-260°F) at atmospheric pressure, transforming it into a clear, colorless, and…

Layer of Protection Analysis (LOPA) is a semi-quantitative risk assessment methodology widely used in the oil and gas and petrochemical industries. It systematically evaluates the…

Lost circulation is the uncontrolled, partial, or complete loss of drilling fluid (mud) into subterranean formations during drilling, completion, or workover operations. It is one…

Lockout/Tagout (LOTO) is a critical safety procedure used in the oil and gas industry to control hazardous energy during maintenance, repair, or servicing of equipment.…