Oil and Gas Terms Beginning with “D” — Page 10

The level to which the static fluid level drops in the tubing or casing when the well produced under pumping conditions. The dynamic fluid level is also called the pumping fluid level. Read more →

The stationing of a vessel, especially a drillship or semisubmersible drilling rig, at a specific location in the sea by the use of computer-controlled propulsion units called thrusters. Though drilling vessels have… Read more →

The ratio of or difference between the highest and the lowest reading, or strongest and weakest signal, that can be recorded or reproduced by an instrument without distortion. Read more →

A type of explosive used as a source for seismic energy during data acquisition. Originally, dynamite referred specifically to a nitroglycerin-based explosive formulated in 1866 by Alfred Bernhard Nobel (1833 to 1896),… Read more →

An instrument used in sucker-rod pumping to record the variation between the polished rod load and the polished rod displacement. Read more →

The record made by the dynamometer. An analysis of this survey may reveal a defective pump, leaky tubing, inadequate balance of the pumping unit, a partially plugged mud anchor, gas locking of the pump or an undersized… Read more →