1.1 This guide covers how dual-wall reverse-circulation drilling may be used for geoenvironmental exploration and installation of subsurface water-quality monitoring devices. The term reverse circulation with respect to dual-wall drilling in this guide indicates that the circulating fluid is forced down the annular space between the double-wall drill pipe and transports soil and rock particles to the surface through the inner pipe.
Note 1–This guide does not include considerations for geotechnical site characterizations that are addressed in a separate guide.
Product Details
- Published:
- 05/01/2013
- Number of Pages:
- 8
- File Size:
- 1 file , 140 KB
- Redline File Size:
- 2 files , 320 KB
