A drilling machine is a mechanism which creates holes ( usually called boreholes) and/or shafts in the earth . Drilling rigs may massive structures housing equipment employed to drill water wells, oil wells, or natural gas extraction wells or they may be of small size to be moved manually by one person . They sample sub-surface mineral deposits, test rock, earth and groundwater physical features , and also may be used to install sub-surface fabrications, such as underground utilities, instrumentation, tunnels or wells. Drilling rigs can be mobile fittings placed on trucks, tracks or trailers, or more permanent land or marine-based structures ( like oil platforms, usually called ‘offshore oil rigs’ even if they don’t contain a drilling rig).

An oil rig on shore would seem to be easier build then one on the ocean. However each drilling machine has the parts to operate with. There is always some hurdle to get over or deal with. Rough terrain and isolated locations are common issues . Drilling rigs at one point were semi-permanent. The structures were made on location and were not removed when the well was drilled. Modern oil rigs are custom-made and are removable . They can be moved from a completed well to a new well. It may take weeks to move an oil rig as they should be taken apart and moved. It takes some time but is less wasteful then building derricks for each well.

Drilling rigs can be:

Small and removable , such as those employed in mineral exploration drilling, water wells and environmental researches .

Big, capable of drilling through thousands of meters of the Earth’s crust.

A drilling rig is used to drill holes for oil. Oil rigs need to cut holes or tubes into the ground . Then oilfield fittings are used to remove the black gold. nowadays oil drilling rigs is very technical and complex. The more evasive oil is the more effort is put into harvesting it. Deeper oil wells are drilled using more specialized equipment . More advanced technology is required to reach the oil. Having drilling rig does not only drilling a hole and a well and pumping the oil out. Oil rigs demand housing for the employees and place for supplies and equipment. A oil field site will need electricity and water to run the equipment. A space to process the crude oil is helpful .

The previous drilling rig included drill bits attached to long poles made of bamboo. The first drill well was in China in 347 AD. The oil was used to assist create salt. Drilling rigs now consist of huge drills with diamond bits that get deeper than 1200 m below the surface . Usually , the traveling block in an drilling rig on land deal with hundreds of tons of pipe. Massive pipelines move black gold across spacious amounts of soil . As demand for oil enlarged so did the methods to extract it.

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