| 摘要 |
Subject: groundwater table-sealing method and system adaptable to the tubing of water, petrol and natural gas drillings. Constitution: a metal or plastic pipe 1 which is smaller in diameter than the drilling borehole, cylindrical balloons 2, a counterweight 3, an elastic pipe 4 adapted to the cylindrical balloon 2, a switch 5, a nitrogen cylinder 6, a wire rope 7, a plug 8, the lower and upper rim 9 of the pipe 1, a pressure regulator 10 and an elastic pipe 11. Function of the system: upon opening of the gas cylinder 6, the cylindrical balloons 2 are inflated in order to stabilize the system at the desired point and stop thus the groundwater table from ingressing the pipe of the drilling through the filters provided. Upon opening of the switch 5, the balloons 2 are deflated and the system is pulled out of the drilling by use of the wire rope 7. |
