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Drilling process for a Downhole heat exchanger. Furled tube in the foreground on the left.Bottom end of a Downhole heat exchangerTop end of a Downhole heat exchanger
A downhole heat exchanger, (DHE) also called a borehole heat exchanger, (BHE) is a heat exchanger installed inside a vertical or inclined borehole.[1] It is used to capture or dissipate heat to or from the ground. DHT's are used for geothermal heating, sometimes with the help of a geothermal heat pump. Downhole heat exchangers, like other use of geothermal energy, have the potential to significantly contribute to the reduction of CO2 emissions.[2] In northern Europe, DHE are already widely deployed.[3]
^"Downhole Heat Exchangers" (PDF). Geo-Heat Center - Oregon Institute of Technology. Retrieved 21 April 2013.
^"Geothermal Energy - Professur für Geothermal Technologies". www.bgu.tum.de. Retrieved 2021-01-15.
used to heat greenhouses in Iceland and Tuscany at about the same time. Charles Lieb developed the first downholeheatexchanger in 1930 to heat his house...
developed the first downholeheatexchanger in 1930 to heat his house. Steam and hot water from the geysers began to be used to heat homes in Iceland in...
heatexchanger may also use water or antifreeze as a heat transfer fluid, often in conjunction with a geothermal heat pump. See, for example downhole...
primarily for corrosion resistance. Specific alloys are used in oil and gas downhole applications and nickel hydrometallurgy for their high strength (e. g.:...
Submersibles use pressurized fluid from the surface to drive a hydraulic motor downhole, rather than an electric motor, and are used in heavy oil applications...
develops, and manufactures resonating quartz pressure transducers for the downhole oil-and-gas industry. TWG is made up of six companies, all of which specialize...
natural gas, sometimes with the addition of foaming agents, can be used when downhole conditions permit. The main functions of liquid drilling fluids are to...
tanks, downhole shafts, wellhead parts, and in the aerospace industry -- where it has become a prime candidate material for constructing heat resistant...
piping include furnace tubes, reformer tubes, heatexchanger tubes, waste gas heater tubes, line pipe and downhole tubes for wells and production vessels, sulphur...
formates are safe to handle and do not damage the producing formation or downhole metals as corrosive alternative, high-density brines (such as zinc bromide...
through a computer Domestic technology – Usage of applied science in houses Downhole oil–water separation technology – Oil and gas harvesting technicPages displaying...
these cases, wells are merely shut in, or temporary plugs may be placed downhole. There are thousands of "temporarily abandoned" wells throughout North...
nature of the Bentley crude, whilst an attempt to flow 9/3-2A using a downhole pump failed due to mechanical reasons. With two failed tests and an oil...
sensors placed in multiple azimuths from the monitored borehole. In a downhole array location, accuracy of events is improved by being close to the monitored...
released in March 2011 indicating a significant reservoir package with a downhole mini drill stem test flowing oil at better rates than in a September 2010...
120 °C, so to prevent the hole walls and the ice core from melting, a heatexchanger was set up that brought the air down to 12 °C of the ambient temperature...
Cretaceous Mid-Pacific Mountains (Sites 865 and 866), as Deduced from Downhole Magnetometer Logs" (PDF). Proceedings of the Ocean Drilling Program, 143...
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