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Plasma Deep Drilling Technology
Plasma deep drilling technology is one of several drilling technologies that may be able to replace conventional, contact-based rotary systems. These new technologies include plasma deep drilling, water jet, hydrothermal spallation and laser. Companies that embrace plasma-drilling method include GA Drilling, headquartered in Bratislava, Slovakia. High-energy plasma High-energy plasma is a technology that targets deep drilling applications. It addresses issues related to drilling in water environments or boreholes with varying diameters. Physical principle of electrical plasma An electric arc is a breakdown of a gas that produces a plasma discharge, resulting from a current flowing through normally nonconductive media such as air or another gas. An arc discharge is characterized by a lower voltage than a glow discharge, and relies on thermionic emission of electrons from the electrodes supporting the arc. The electric arc is influenced by factors such as: the gas flow, inner an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Drilling Technologies
The latest study of Massachusetts Institute of Technology "The Future of Geothermal Energy – Impact of Enhanced Geothermal Systems (EGS) on the United States in the 21st Century" (2006) points out the essential importance of developing an economical deep geothermal boring technology. With current boring technologies, bore price rises exponentially with depth. Thus, finding a boring technology with which the bore price rise would be approximately linear with increasing bore depth is an important challenge. New drilling technologies requirements This MIT study characterizes the requirements on new fast and ultra-deep boring technology as follows: *the price of boring rises linearly with depth *bore axis with neutral floating *the possibility to make vertical or inclined bores up to 10 km deep *the possibility to make large diameter bores – even 5 times larger than on the ground compared to today drilling technologies *casing formed on site in the borehole Examples There a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geothermal Energy
Geothermal energy is the thermal energy in the Earth's crust which originates from the formation of the planet and from radioactive decay of materials in currently uncertain but possibly roughly equal proportions. The high temperature and pressure in Earth's interior cause some rock to melt and solid mantle to behave plastically. This results in parts of the mantle convecting upward since it is lighter than the surrounding rock. Temperatures at the core–mantle boundary can reach over 4000 °C (7200 °F). Geothermal heating, using water from hot springs, for example, has been used for bathing since Paleolithic times and for space heating since ancient Roman times. More recently geothermal power, the term used for generation of electricity from geothermal energy, has gained in importance. It is estimated that the earth's geothermal resources are theoretically more than adequate to supply humanity's energy needs, although only a very small fraction is currently being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geothermal Drilling
A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that uses a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons. Ground source heat pumps (GSHPs) – or geothermal heat pumps (GHP) as they are commonly termed in North America – are among the most energy-efficient technologies for providing HVAC and water heating, using far less energy than can be achieved by burning a fuel in a boiler/furnace or by use of resistive electric heaters. Efficiency is given as a coefficient of performance (CoP) which is typically in the range 3 – 6, meaning that the devices provide 3 – 6 units of heat for each unit of electricity used. Setup costs are higher than for other heating systems due to the requirement to install ground loops over large areas or drill bore holes, and for this reason air source heat pumps are often used instead. Thermal proper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drilling Technology
Drilling is a cutting process where a drill bit is spun to cut a hole of circular cross section (geometry), cross-section in solid materials. The drill bit is usually a rotary Cutting tool (machining), cutting tool, often multi-point. The bit is Pressure, pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute. This forces the cutting edge against the work-piece, cutting off Swarf, chips (swarf) from the hole as it is drilled. In Rock (geology), rock drilling, the hole is usually not made through a circular cutting motion, though the bit is usually rotated. Instead, the hole is usually made by hammering a drill bit into the hole with quickly repeated short movements. The hammering action can be performed from outside the hole (top-hammer drill) or within the hole (down-the-hole drill, DTH). Drills used for horizontal drilling are called drifter drills. In rare cases, specially-shaped bits are used to cut holes of non-circular cro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research Centre For Deep Drilling
Research Centre for Deep Drilling is high-tech laboratory focused on research and development of new deep drilling concept based on electrical plasma. It was established by GA Drilling, former Geothermal Anywhere company in the premises of Slovak Academy of Sciences in Bratislava, Slovakia. The Research centre was officially opened on 10 October 2010 as a result of long-term activities whose aim is to support the geothermal technology research and development in Slovakia. In October 2012, GA Drilling officially moved from Research Center for Deep Drilling to newly founded GA Drilling Technology Center. High-energetic electrical plasma High-energetic electrical plasma is a promising technology which is currently being developed in deep drilling applications. It has lower energy efficiency than some of the other technologies, but has several other advantages. The most important are utilization in water environment or producing boreholes with wide range of diameters. The research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oil Well
An oil well is a drillhole boring in Earth that is designed to bring petroleum oil hydrocarbons to the surface. Usually some natural gas is released as associated petroleum gas along with the oil. A well that is designed to produce only gas may be termed a gas well. Wells are created by drilling down into an oil or gas reserve that is then mounted with an extraction device such as a pumpjack which allows extraction from the reserve. Creating the wells can be an expensive process, costing at least hundreds of thousands of dollars, and costing much more when in hard to reach areas, e.g., when creating offshore oil platforms. The process of modern drilling for wells first started in the 19th century, but was made more efficient with advances to oil drilling rigs during the 20th century. Wells are frequently sold or exchanged between different oil and gas companies as an asset – in large part because during falls in price of oil and gas, a well may be unproductive, but if price ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quaise
Quaise, Inc was founded in 2018 to develop a millimeter-wave drilling system for converting existing power stations to use superdeep geothermal energy. The system repurposes existing gyrotron technology to drill 20 kilometers beneath the surface, where temperatures exceed 400 °C. No fracking is required, avoiding the potential for earthquakes that have occurred in other geothermal systems. Drilling using this technique is hoped to be fast, with boreholes aimed to be completed in 100 days using existing 1MW gyrotrons. Overview Existing geothermal power stations can only be deployed in rare locations where adequate heat is located within 3 km of the surface. These resources are of a comparatively low temperature, and require seismically risky stimulation techniques. Further, drilling at these depths is expensive and slow. Instead, Quaise plans to drill quickly to deep depths using a gyrotron and waveguide, vaporizing the rock by heating it. Temperatures at 20 k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drilling Rig
A 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. 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. Small to medi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GA Drilling
GA Drilling (formerly ''Geothermal Anywhere'') is a drilling and geothermal energy company in Bratislava, Slovakia with branches in Bristol (UK), Abu Dhabi (UAE), and headquartered in Houston (US). The company was founded in 1994 and rebranded as GA Drilling in August 2013. GA Drilling is also active within the drilling community through participation in several industry events. Technology Plasmabit Plasmabit is a pulsed plasma drilling system. A rotating plasma torch uses ionized gas at 6,000 °C (10,800 °F) to crack and weaken the rock, while high-pressure water mechanically removes rock chips and flushes them to the surface. Anchorbit Anchorbit progressively moves the borehead deeper into the well. It consists of two stacked collar sections behind the drill bit. Each section has four ranks of pistons that can extend and grip the bore shaft. The sections can move independently. While one section grips the bore, the other moves closer to the drill bit. Then the moving sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Drilling Technologies
The latest study of Massachusetts Institute of Technology "The Future of Geothermal Energy – Impact of Enhanced Geothermal Systems (EGS) on the United States in the 21st Century" (2006) points out the essential importance of developing an economical deep geothermal boring technology. With current boring technologies, bore price rises exponentially with depth. Thus, finding a boring technology with which the bore price rise would be approximately linear with increasing bore depth is an important challenge. New drilling technologies requirements This MIT study characterizes the requirements on new fast and ultra-deep boring technology as follows: *the price of boring rises linearly with depth *bore axis with neutral floating *the possibility to make vertical or inclined bores up to 10 km deep *the possibility to make large diameter bores – even 5 times larger than on the ground compared to today drilling technologies *casing formed on site in the borehole Examples There a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glow Discharge
A glow discharge is a plasma formed by the passage of electric current through a gas. It is often created by applying a voltage between two electrodes in a glass tube containing a low-pressure gas. When the voltage exceeds a value called the striking voltage, the gas ionization becomes self-sustaining, and the tube glows with a colored light. The color depends on the gas used. Glow discharges are used as a source of light in devices such as neon lights, fluorescent lamps, and plasma-screen televisions. Analyzing the light produced with spectroscopy can reveal information about the atomic interactions in the gas, so glow discharges are used in plasma physics and analytical chemistry. They are also used in the surface treatment technique called sputtering. Electrical conduction in gas Conduction in a gas requires charge carriers, which can be either electrons or ions. Charge carriers come from ionizing some of the gas molecules. In terms of current flow, glow discharge falls ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
