Drilling rig

Until internal combustion engines were developed in the late 19th century, the main method for drilling rock was muscle power of man or animal. The technique of oil drilling through percussion or rotary drilling has its origins dating back to the ancient Chinese Han dynasty in 100 BC, where percussion drilling was used to extract natural gas in the Sichuan province. Early oil and gas drilling methods were seemingly primitive although the process required several technical skills. The skills involved the availability of heavy iron bits and long bamboo poles, the manufacturing of long and sturdy cables woven from bamboo fiber, and levers. Heavy iron bits were attached to long bamboo cables suspended from bamboo derricks and then were repeatedly raised and dropped into a manually dug hole by having two to six men jumping on a lever. A modernized variant of the ancient Chinese drilling technique was used by American businessman Edwin Drake to drill Pennsylvania's first oil well in 1859 using small steam engines to power the drilling process rather than by human muscle. The first primary product was kerosene for lamps and heaters. Similar developments around Baku fed the European market. In the 1970s, outside of the oil and gas industry, roller bits using mud circulation were replaced by the first pneumatic reciprocating piston Reverse Circulation (RC) drills. The former became essentially obsolete for most shallow drilling, now only used in certain situations where rocks preclude other methods. RC drilling proved much faster and more efficient. It continues to improve with better metallurgy, deriving harder, more durable bits and new compressors capable of delivering higher air pressures at higher volumes, enabling deeper and faster penetration. Diamond drilling has remained essentially unchanged since its inception. delivers new containment cap to the Deepwater Horizon oil spill on 10 July 2010. In the background are the Discoverer Enterprise, GSF Development Driller II, and Helix Producer I'' ==Petroleum drilling industry==

Oil and natural gas drilling rigs are used not only to identify geologic reservoirs, but also used to create holes that allow the extraction of oil or natural gas from those reservoirs. Primarily in onshore oil and gas fields once a well has been drilled, the drilling rig will be moved off of the well and a service rig (a smaller rig) that is purpose-built for completions will be moved on to the well to get the well on line. This frees up the drilling rig to drill another hole and streamlines the operation as well as allowing for specialization of certain services, i.e. completions vs. drilling. ==Mining drilling industry==

Mining drilling rigs are used for two main purposes, exploration drilling which aims to identify the location and quality of a mineral, and production drilling, used in the production-cycle for mining. Drilling rigs used for rock blasting for surface mines vary in size dependent on the size of the hole desired, and is typically classified into smaller pre-split and larger production holes. Underground mining (hard rock) uses a variety of drill rigs dependent on the desired purpose, such as production, bolting, cabling, and tunnelling. ==Mobile drilling rigs==

In early oil exploration, drilling rigs were semi-permanent in nature and the derricks were often built on site and left in place after the completion of the well. 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. Small mobile drilling rigs are also used to drill or bore piles. Rigs can range from continuous flight auger (CFA) rigs to small air powered rigs used to drill holes in quarries, etc. These rigs use the same technology and equipment as the oil drilling rigs, just on a smaller scale. The drilling mechanisms outlined below differ mechanically in terms of the machinery used, but also in terms of the method by which drill cuttings are removed from the cutting face of the drill and returned to surface. ==Automated drill rig==

An automated drill rig (ADR) is an automated full-sized walking land-based drill rig that drills long lateral sections in horizontal wells for the oil and gas industry. In June 2005 the first specifically designed slant automated drilling rig (ADR), Ensign Rig No. 118, for steam assisted gravity drainage (SAGD) applications was mobilized by Deer Creek Energy Limited, a Calgary-based oilsands company. ==Auger drills==

An auger drill is a spiral-shaped tool. Its main function is the drilling of holes in the ground and other materials - or surfaces such as ice, wood, etc. The design of an auger depends on the kind of material it's meant to drill into, hence there are different types of auger drills. Auger drills come in varying sizes and can drill holes up to a depth of 95 feet below the ground. They are known to be quite versatile, saving time and energy during construction work or even personal projects. The auger is a helical screw made of steel casing with curved flights that rotates as it's pushed into the ground by a drill head. As the auger rotates, it brings excavated material to the surface, which helps keep the borehole open and prevents it from collapsing. Augers can be mounted on trucks or other machines and come in different lengths and diameters. Auger drilling is used in many fields, including construction, environmental studies, and geotechnical investigations. It can also be used for a variety of other purposes, such as: • Installing auger piles for foundation engineering • Drilling holes for industrial applications like telephone poles, solar posts, and deck posts • Small home projects like gardening, building fences, and planting crops • Ice fishing There are different auger drilling methods, including hand auger drilling and hollow stem auger drilling. Hand auger drilling is a cost-effective method that's often used in areas with shallow soil, but it can be time-consuming and labor-intensive. Hollow stem auger drilling uses a large, hollow auger that removes soil as it drills. Auger drilling is often quieter and less vibration-prone than other drilling methods, like drive drilling, so it can also be used in urban areas. When using an auger, it's important to take safety precautions, such as wearing protective equipment like gloves, eye and ear protectors, and closed-toe boots. You should also make sure the auger and attachments are secure, engage the drill's high torque gear, and start drilling slowly. Drill buckets A drill bucket, or auger bucket, is a drilling head that accumulates spoil inside and can be lifted from the hole periodically to be emptied. This method is particularly effective for drilling through hard and compacted soils, as well as rocks, due to the bucket's cylindrical design with cutting teeth at the base, which excavates and retains soil or rock as it rotates. Drill buckets are commonly used in foundation drilling for constructing deep piles and shafts. They come in various sizes and configurations, tailored to specific ground conditions and project requirements, and can be equipped with wear-resistant components to enhance durability in abrasive environments. Additionally, modern drill buckets may include a vented bottom to release trapped air and facilitate faster spoil removal. == Industry associations ==

The International Association of Drilling Contractors (IADC) is the global trade association representing the drilling industry. Founded in 1940 and headquartered in Houston, Texas, the IADC represents drilling contractors, oil and gas operators, and service companies across more than 50 countries. The IADC publishes Drilling Contractor, the industry's primary technical magazine covering drilling technology, operations, and safety practices. The International Association of Oil and Gas Producers (IOGP) is a global industry association representing oil and gas companies and national associations. IOGP collaborates with drilling contractors and service companies to develop industry-wide safety standards, recommended practices, and incident reporting frameworks for upstream operations. ==See also==