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/sediment 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:
- 06/01/2018
- Number of Pages:
- 7
- File Size:
- 1 file , 320 KB
- Redline File Size:
- 2 files , 590 KB
