05.07.2009

A floating device used in offshore seismic surveys to identify the end of a streamer. Tail buoys allow the seismic acquisition crew to monitor the location and direction of streamers. They are commonly brightly colored, reflect radar signals and are fitted with Global Positioning System (GPS) receivers.

A safety device installed in the upper wellbore to provide emergency closure of the producing conduits in the event of an emergency. Two types of subsurface safety valve are available: surface-controlled and subsurface controlled

Sorry, this entry is only available in עברית.

On June 10th 1870 the Standard Oil Company was formed as a partnership led by John D. Rockefeller and soon became involved in all aspects of the oil business (producing, transporting, refining, and marketing). The company was split in 1911 by the United States Supreme Court in order to decrease its monopolistic power

A geologically directed drilling effort to obtain information pertaining to a specific geological condition that might lead toward the discovery of an accumulation of hydrocarbons. Such wells are customarily drilled without the intention of being completed for hydrocarbon production. This classification also includes tests identified as core tests and all types of expendable holes related to hydrocarbon exploration.

An analysis related to a process involving a randomly determined sequence of observations, each of which is considered as a sample of one element from a probability distribution

A term used to describe the overall relationship of rock masses e.g. folding, faulting, unconformities