Method for taking a soil sample from a horizontal borehole

Details Method for taking a soil sample from a horizontal borehole Method for taking a soil sample from a horizontal borehole

E - Fixed Constructions

21

B

E21B 49/06 (2006.01) E02D 1/04 (2006.01) E21B 7/30 (2006.01) E21B 25/16 (2006.01)

Patent

CA 2235196

A method for taking soil samples from horizontal boreholes. A first step involves making a substantially horizontal borehole from an entry pit to an exit pit. A second step involves towing a soil sampling apparatus through the borehole. It is preferred that the apparatus be pulled by the drill string as the drill string is withdrawn from the borehole. By using a soil sampling apparatus that is capable of taking multiple soil samples, all necessary soil sampling along the horizontal borehole may be completed in a single pass.

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