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Drill pipe (#16) is a joint of hollow tubing used to connect the surface equipment to the bottom hole assembly (BHA) and acts as a conduit for the drilling fluid. In the diagram, these are stands of drill pipe which are 2 or 3 joints of drill pipe connected and stood in the derrick vertically, usually to save time while tripping pipe.
In more recent times drilling rigs are expensive custom-built machines that can be moved from well to well. Some light duty drilling rigs are like a mobile crane and are more usually used to drill water wells. Larger land rigs must be broken apart into sections and loads to move to a new place, a process which can often take weeks.
Well drilling can be done either manually or mechanically and the nature of required equipment varies from extremely simple and cheap to very sophisticated. Managed Pressure Drilling (MPD) is defined by the International Association of Drilling Contractors (IADC) as “an adaptive drilling process used to more precisely control the annular ...
[6] [7] By the first century BC, Chinese craftsmen cast iron drill bits and drillers were able to drill boreholes up to 1,500 metres (4,900 ft) deep. [8] [9] [10] By the eleventh century AD, the Chinese were able to drill boreholes up to 900 metres (3,000 ft) in depth. Drilling for boreholes was time-consuming and long.
Casing (borehole) Casing cutter; Casing head; Casing shoe; Casing string; Cementing equipment; Chief Roughneck Award; Coalbed methane extraction; Coiled tubing drilling; Completion (oil and gas wells) Conductor pipe; Continuous flight augering; Core drill; Crown block
For machining with deep hole drilling processes or processes associated with deep hole drilling, deep hole drilling machines are mainly used as standard (multi-purpose) or special machines. Gun drills are an archetypal example. Often single-lip deep hole drills are used on machining centres for the production of holes with smaller drilling ...
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