Borehole digging for a borewell or tube wellBorewell diggingA woman in Uganda collects water from a borehole and attached hand pumpA drilled well in Ghana; the borehole isn't visible
A borehole is a narrow shaft bored in the ground, either vertically or horizontally. A borehole may be constructed for many different purposes, including the extraction of water (drilled water well and tube well), other liquids (such as petroleum), or gases (such as natural gas). It may also be part of a geotechnical investigation, environmental site assessment, mineral exploration, temperature measurement, as a pilot hole for installing piers or underground utilities, for geothermal installations, or for underground storage of unwanted substances, e.g. in carbon capture and storage.
A borehole is a narrow shaft bored in the ground, either vertically or horizontally. A borehole may be constructed for many different purposes, including...
The Kola Superdeep Borehole (Russian: Кольская сверхглубокая скважина, romanized: Kol'skaya sverkhglubokaya skvazhina) SG-3 is the result of a scientific...
Borehole Mining (BHM) is a remote operated method of extraction (mining) of mineral resources through boreholes based on in-situ conversion of ores into...
also known as borehole logging is the practice of making a detailed record (a well log) of the geologic formations penetrated by a borehole. The log may...
The Askam Borehole is a borehole that is located in Luzerne County, Pennsylvania, in the United States. It is situated in the watershed of Nanticoke Creek...
in Triton. Triton workers excavated a 235 feet (72 m) shaft, known as Borehole 10-X and supported by a steel caisson to bedrock, in 1971. According to...
exploration boreholes drilled by Pemex on the Yucatán peninsula have provided some useful data. UNAM drilled a series of eight fully-cored boreholes in 1995...
Deep borehole disposal (DBD) is the concept of disposing high-level radioactive waste from nuclear reactors in extremely deep boreholes instead of in more...
The Ludham Borehole was a geological research borehole drilled in 1959 near Ludham, Norfolk, UK. A continuous core sample of late Pliocene and early Pleistocene...
The "Well to Hell" is an urban legend regarding a putative borehole in Russia which was purportedly drilled so deep that it broke through into Hell. It...
world's deepest hole until it was surpassed in 1979 by the Kola Superdeep Borehole, dug by the USSR. The drilling was started October 25, 1972 and it took...
(commonly referred to as MD, or just the depth) is the length of the drilled borehole. In conventional vertical wells, this coincides with the true vertical...
exchanger, (DHE) also called a borehole heat exchanger, (BHE) is a heat exchanger installed inside a vertical or inclined borehole. It is used to capture or...
the KTB borehole, was a scientific drilling project carried out from 1987 to 1995 near Windischeschenbach, Bavaria. The main super-deep borehole reached...
tool that provides a continuous measurement of the size and shape of a borehole along its depth and is commonly used in hydrocarbon exploration. The measurements...
geological structure, and boundaries between bedrock units. Creating a borehole is a technique that consists of drilling through the ground in various...
made, a borehole was drilled at Reykjanesvirkjun. It was named RN-15 or REY H015 (Reykjanes-15) and is just one of many geothermal boreholes drilled in...
parameters describe the quality of core recovered from a borehole. Total core recovery (TCR) is the borehole core recovery percentage. TCR is defined as the quotient:...
the borehole (or anywhere along its length) in a straight perpendicular line represented by line (a) in the image. Line (b) is the actual borehole and...
"down-the-hole" type hand pump. Casing to support the external surfaces of the borehole against collapse may be needed, either temporarily or permanently, and...
Borehole imaging logs are logging and data-processing methods used to produce two-dimensional, centimeter-scale images of a borehole wall and the rocks...
investigations of the site. Areas of interest include the "money pit", Borehole 10-X, Smith's Cove, Site 2, "Nolan's Cross", the "Hatch", and the "Swamp"...
the presence of an aquifer. BTES (borehole thermal energy storage). BTES stores can be constructed wherever boreholes can be drilled, and are composed...
particular bullet, it penetrating the borehole wall, the retention system recovering the bullet from the borehole wall, and the sample is retained in the...
injected into (or extracted from) a borehole while the borehole mean temperature is measured. The system consists of a borehole, pipe system, circulation pump...
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