This guide covers how direct (straight) rotary-drilling procedures with water-based drilling fluids may be used for geoenvironmental exploration and installation of subsurface water-quality monitoring devices.
Note 1 - The term direct with respect to the rotary-drilling method of this guide indicates that a water-based drilling fluid is pumped through a drill-rod column to a rotating bit. The drilling fluid transports cuttings to the surface through the annulus between the drill-rod column and the borehole wall.
Note 2 - This guide does not include considerations for geotechnical site characterization that are addressed in a separate guide.
Direct-rotary drilling for geoenvironmental exploration and monitoring-device installations will often involve safety planning, administration and documentation. This standard does not purport to specifically address exploration and site safety.
| File Size : | 1
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| Note : | This product is unavailable in Russia, Ukraine, Belarus |
| Number of Pages : | 7 |
| Published : | 09/01/2012 |
