drill under the weight of a drilling string
1Drilling fluid — This article is about fluids used when drilling a well. For fluids used with drill bits during metal working, see cutting fluid. Driller pouring a foaming agent down the rod string on a drilling rig In geotechnical engineering, drilling fluid is… …
2Drilling mud — In geotechnical engineering, drilling mud, also known as spud mud (when beginning the drilling process), is a drilling fluid used to drill boreholes into the earth. Often used while drilling oil and natural gas wells and on exploration drilling… …
3Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… …
4History of the petroleum industry in Canada — The Canadian petroleum industry arose in parallel with that of the United States. Because of Canada s unique geography, geology, resources and patterns of settlement, however, it developed in quite different ways. The evolution of the petroleum… …
5Directional drilling — A horizontal directional drill in operation Directional drilling (or slant drilling) is the practice of drilling non vertical wells. It can be broken down into three main groups: Oilfield Directional Drilling, Utility Installation Directional… …
6Blowout (well drilling) — A blowout is the uncontrolled release of crude oil and/or natural gas from an oil well or gas well after pressure control systems have failed.[1] Prior to the advent of pressure control equipment in the 1920s, the uncontrolled release of oil and… …
7Elevators (drilling rig) — [http://www.glossary.oilfield.slb.com/Display.cfm?Term=elevator,Elevators] , as developed for the drilling industry, is a hinged device with handles that are used to wrap around the tool joint of drill pipe, casing or lift nipples (for collars)… …
8Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
9Driller's depth — The original depth recorded while drilling an oil or gas well is known as the Driller s Depth. Contents 1 The Problem 1.1 Measurement of Driller s Depth 1.2 Measuring drill string length 1.2.1 …
10Oil well — The pumpjack, such as this one located south of Midland, Texas, is a common sight in West Texas. An oil well is a general term for any boring through the earth s surface that is designed to find and acquire petroleum oil hydrocarbons. Usually… …
