Most companies drilling oil and natural gases normally concur that horizonal drilling is much more economical and generally effective in many aspects as compared to the vertical method. The method is now adopted in many mining firms.
In most cases however, the drills begin in the surface in form of a vertical well. This continues to the point where the well is a few feet above the target area. Once at this level, the piped are withdrawn from the well and instead a hydraulic motor is placed between the drill pipe and drill bit. In order for horizonal drilling to occur, this motor rotates the drill bit without rotating the pipes. The well can the well can therefore deviate from the original vertical orientation.
In order for its success, a number of gadgets and related devices have to be used particularly to determine the azimuth and orientation. These instruments are used to provide information necessary to guide the drill bit to the desired targets.
The initial cost of this technology on comparison to the one involving vertical burrowing reveals huge difference. When the cost of hydraulic fracturing and that of initial burrowing are calculated on average per foot, they can b as much as three times in access of the vertical alternative. The question then is why mining firms prefer this method of mineral extraction?
It is the only way reverses unreachable directly from the surface can be reached. It is not unusual to discover mineral reservoir beneath a city, a part or natural features that make them inaccessible through vertical burrowing. In such situations, the solution is to bore vertically from the edge of that city and make a horizontal turn once underground.
Other benefits of using this method to access underground mineral reserves include increased pay zone as the rock may not be very thick but instead can be very wide. Burrowing horizontally across it as opposed to vertical method gives a larger surface area or increased length of pay zone.
It also increases productivity particularly in fractured reservoir where they can the intersected for maximum exploited with minimum budget. It also helps relieve pressure or seal otherwise out of control wells and provides a means for underground utility installation in situations where excavation is an issue.
When you consider permeability of some rocks and viscosity of some fluids, in a number of occasions, the horizonal drilling is likely to be the better alternative. The vertical method of burrowing work best with highly permeable rocks and very viscous fluids, when the opposite is the case, getting fluid flow into the drill can be an issue. A horizontal drill achieves this by making the holes as close as possible to the fluid.
Looking at the merits with which horizonal drilling comes with; it is easy to understand why a number of large mining firms says that they could not survive if not for this method of boring holes into the ground. Initial cost is expensive; the benefit however exceeds making it a worthy investment.
In most cases however, the drills begin in the surface in form of a vertical well. This continues to the point where the well is a few feet above the target area. Once at this level, the piped are withdrawn from the well and instead a hydraulic motor is placed between the drill pipe and drill bit. In order for horizonal drilling to occur, this motor rotates the drill bit without rotating the pipes. The well can the well can therefore deviate from the original vertical orientation.
In order for its success, a number of gadgets and related devices have to be used particularly to determine the azimuth and orientation. These instruments are used to provide information necessary to guide the drill bit to the desired targets.
The initial cost of this technology on comparison to the one involving vertical burrowing reveals huge difference. When the cost of hydraulic fracturing and that of initial burrowing are calculated on average per foot, they can b as much as three times in access of the vertical alternative. The question then is why mining firms prefer this method of mineral extraction?
It is the only way reverses unreachable directly from the surface can be reached. It is not unusual to discover mineral reservoir beneath a city, a part or natural features that make them inaccessible through vertical burrowing. In such situations, the solution is to bore vertically from the edge of that city and make a horizontal turn once underground.
Other benefits of using this method to access underground mineral reserves include increased pay zone as the rock may not be very thick but instead can be very wide. Burrowing horizontally across it as opposed to vertical method gives a larger surface area or increased length of pay zone.
It also increases productivity particularly in fractured reservoir where they can the intersected for maximum exploited with minimum budget. It also helps relieve pressure or seal otherwise out of control wells and provides a means for underground utility installation in situations where excavation is an issue.
When you consider permeability of some rocks and viscosity of some fluids, in a number of occasions, the horizonal drilling is likely to be the better alternative. The vertical method of burrowing work best with highly permeable rocks and very viscous fluids, when the opposite is the case, getting fluid flow into the drill can be an issue. A horizontal drill achieves this by making the holes as close as possible to the fluid.
Looking at the merits with which horizonal drilling comes with; it is easy to understand why a number of large mining firms says that they could not survive if not for this method of boring holes into the ground. Initial cost is expensive; the benefit however exceeds making it a worthy investment.
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