An oil rig on shore would seem to be easier build then one on the ocean. However every drill rig has the parts to work with. There is always some hurdle to get over or deal with. Harsh terrain and isolated areas 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 portable . They can be moved from a completed well to a new well. It may take weeks to move an oil rig as they have to be taken apart and moved. It takes some time but is less wasteful then building derricks for every well.

Drilling rigs can be:

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

Huge , 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 slots or tubes into the earth . Then oilfield equipment is used to remove the black gold. Today’s 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 made using more specialized equipment . More advanced technology is demanded to achieve the oil. Having drilling rig does not just drilling a hole and a well and pumping the oil out. Oil rigs require housing for the staff and storage 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 earliest drilling rig consisted of drill bits fixed to long poles made of bamboo. The first drill well was in China in 347 AD. The oil was used to help create salt. Drilling rigs today consist of huge drills with diamond bits that get deeper than 1200 m below the earth . Often , the traveling block in an drilling rig on land deal with hundreds of tons of pipe. Massive pipelines move black gold across spacious quantity of land . As requirement for oil increased so did the methods to get it.

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