A core drilling rig is a machine that creates holes in the earth's subsurface. Drilling rigs can be massive structures housing equipment used to drill water wells, oil wells, or natural gas extraction wells, or they can be small enough to be moved manually by one person and such are called augers. Drilling rigs can sample subsurface mineral deposits, test rock, soil and groundwater physical properties, and also can be used to install sub-surface fabrications, such as underground utilities, instrumentation, tunnels or wells. Drilling rigs can be mobile equipment mounted on trucks, tracks or trailers, or more permanent land or marine-based structures (such as oil platforms, commonly called 'offshore oil rigs' even if they don't contain a drilling rig). The term "rig" therefore generally refers to the complex equipment that is used to penetrate the surface of the Earth's crust.
Land Based Drilling Rig
This kind of rig is the most common for exploration. The land based drilling rigs today are a lot smaller and more efficient than ones used in the past.
Slim Hole Drilling Rig
A slim hole-drilling rig is a lot smaller than a conventional one. It can sometimes be more than twice as small as a conventional one. Slim hole drilling rigs generally drill out less rock compared to the conventional one and it also takes up less space because it is smaller. Not all environments allow for the use of a slim hole-drilling rig.
Coiled Tubing Drilling Rig
Normal holes are drilled using rigid pipe to form the drill string. Sometimes, coiled tubing is used instead of using pipes. Doing this has many benefits such as minimized equipment footprint and less drilling waste. This is a great option for areas that are environmentally sensitive. This is best used for re-entering wells.
Jackup Drilling Rig
These are used in shallow water (less than three hundred feet deep). A jackup rig is a floating barge that has a drilling structure that is supported by legs that can either be lowered or raised. The Jackup is usually towed to its location. These rigs are very strong because they can hold through strong waves and ocean storms. They are considered cost effective because they are easy to move if a storm comes and they are also very strong and durable, even in the worst conditions.
Semi-Submersible Drilling Rig
This kind of rig is meant for drilling in water that is deeper than three hundred feet. The Semi-Submersible rig relies on a floating platform to hold it.
A drilling rig is a machine that creates holes in the earth's subsurface. Drilling rigs can be massive structures housing equipment used to drill water wells, oil wells, or natural gas extraction wells, or they can be small enough to be moved manually by one person and such are called augers.