A process that incorporates machines to facilitate the construction of stands of drillpipe away from the activities at well center. This may be done vertically using […]

Drilling for oil in an ocean, gulf, or sea, usually on the Outer Continental Shelf. A drilling unit for offshore operations may be a mobile floating […]

1) a sandstone that yields oil. 2) by extension, any reservoir that yields oil, whether or not it is sandstone.

The final string of casing set and cemented in the hole to prevent caving of the hole, the flow of fluid into the hole from other […]

A formation or horizon of a well from which oil may be produced. The oil zone is usually immediately under the gas zone and on top […]

The surface area overlying an oil reservoir or reservoirs. The term usually includes not only the surface area, but also the reservoir, the wells, and the […]

1) any wellbore in which casing has not been set. 2) open or cased hole in which no drill pipe or tubing is suspended. 3) the […]

The person or company, either proprietor or lessee, actually operating an oilwell or lease, generally the oil company by which the drilling contractor is engaged. Compare […]

An opening of a measured diam that is used for measuring the flow of fluid through a pipe or for delivering a given amount of fluid […]

The power that is put out by a unit, operating system, or piece of equipment.

A fishing tool that is attached to tubing or drill pipe and lowered over the outside wall of pipe or sucker rods lost or stuck in […]