18 July 2017

Lead tongs

The pipe tongs suspended in the derrick or mast and operated by a wireline connected to the breakout cathead. In coming out of the hole, they […]
25 July 2017

Leak-off test

The leak-off test (LOT) is routinely used to verify that the cement and formation being tested can withstand predicted wellbore pressures and that it’s safe to […]
18 July 2017

Lease

1) a legal document executed between a landowner, as lessor, and a company or individual, as lessee, that grants the right to exploit the premises for […]
25 July 2017

Lease Automatic Custody Transfer (LACT)

The measurement, sampling, and transfer of oil from the producer’s tanks to the connected pipeline on an automatic basis without a representative of either the producer […]