Exploration diamond drillingExploration diamond drilling is used in the mining industry to probe the contents of known ore deposits and potential sites. By withdrawing a small diameter core of rock from the orebody, geologists can analyze the core by chemical assay and conduct petrologic, structural, and mineralogical studies of the rock. It is also often used in the geotechnical engineering industry for foundation testing in conjunction with soil sampling methods.
Core sampleA core sample is a cylindrical section of (usually) a naturally occurring substance. Most core samples are obtained by drilling with special drills into the substance, such as sediment or rock, with a hollow steel tube, called a core drill. The hole made for the core sample is called the "core hole". A variety of core samplers exist to sample different media under different conditions; there is continuing development in the technology.
Drilling rigA drilling rig is an integrated system that drills wells, such as oil or water wells, or holes for piling and other construction purposes, into 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.
Hole sawA hole saw or holesaw, also known as a hole cutter, is a saw blade of (ring) shape, whose annular creates a hole in the workpiece without having to cut up the core material. It is used in a drill. Hole saws typically have a pilot drill bit (arbor) at their center to keep the saw teeth from walking.
Drill stringA drill string on a drilling rig is a column, or string, of drill pipe that transmits drilling fluid (via the mud pumps) and torque (via the kelly drive or top drive) to the drill bit. The term is loosely applied to the assembled collection of the smuggler pool, drill collars, tools and drill bit. The drill string is hollow so that drilling fluid can be pumped down through it and circulated back up the annulus (the void between the drill string and the casing/open hole).
Annular cutterForm of core drill A tungsten carbide tipped (TCT) and high-speed steel (HSS) annular cutter (also known as a "core drill" or "hole saw") An annular cutter (also called a core drill, core cutter, broach cutter, trepanning drill, hole saw, or cup-type cutter) is a form of core drill used to create holes in metal. An annular cutter, named after the annulus shape, cuts only a groove at the periphery of the hole and leaves a solid core or slug at the center.
ConcreteComposite construction materialA single concrete block, as used for constructionConcrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid. It is the second-most-used substance (after water), the most widely used building material, and the most-manufactured material in the world. Cement-bound concrete differs from the less rigid, less durable asphaltic concrete, which has a bituminous binder.
Rock (geology)In geology, a rock (also called a stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition, and the way in which it is formed. Rocks form the Earth's outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere.
Drill bitType of cutting tool From top: Spade, brad point, masonry, and twist drills bits Drill bit (upper left), mounted on a pistol-grip electric drill A set of masonry drills A drill bit is a cutting tool used with a drill to remove material and create holes, typically with a circular cross-section. Drill bits are available in various sizes and shapes, designed to produce different types of holes in a wide range of materials.
Ice drillingMethod of drilling through iceThe ACFEL ice auger showing an ice core pushed up into the core remover barrelIce drilling allows scientists studying glaciers and ice sheets to gain access to what is beneath the ice, to take measurements along the interior of the ice, and to retrieve samples. Instruments can be placed in the drilled holes to record temperature, pressure, speed, direction of movement, and for other scientific research, such as neutrino detection.
Raise borerA raise borer is a machine used in underground mining, to excavate a circular hole between two levels of a mine without the use of explosives. The raise borer is set up on the upper level of the two levels to be connected, on an evenly laid platform (typically a concrete pad). A small-diameter hole (pilot hole) is drilled to the level required; the diameter of this hole is typically 230mm – 445mm (9" - 17.5"), large enough to accommodate the drill string.
BoreholeA borehole is a narrow shaft drilled into the ground, either vertically or horizontally. Boreholes range from shallow holes just a few feet deep to engineered shafts extending hundreds or even thousands of feet underground. A borehole may be constructed for many different purposes, including the extraction of water ( through drilled wells and tube wells), other liquids (such as petroleum), or gases (such as natural gas).Boart LongyearBoart Longyear is an international mineral exploration company founded in 1890 in the United States. It is headquartered in Salt Lake City, Utah, with regional offices and operations in the Asia-Pacific region, North and South America, Europe, and Africa. The company provides mineral exploration services and drilling products for the mining industry and also has a presence in drilling water exploration, environmental sampling, energy, and oil sands exploration.*As an Amazon Associate I earn from qualifying purchases.