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Before drilling begins, there must first be a technically well design made ​​and approved by the authorities. A choice must be made from the materials to be used, the thickness of the tubing in the borehole and the construction of the borehole. The First 100 meters conductor pipe is drilled by Hatjema. By Drilltec a shaft drilled approximately 1,200 meters. Then there is the casing of the first 1200 meters, then left the cement to the first 1,200 meter tube is pumped back to protect and securely tighten. Subsequently, the second 1,200 meters in the same way drilled and completed with casing and cement. Then the screens for the last 700 meters fitted.