Results 261 to 263 of about 1,204 (263)

Experimental Research on Reverse Circulation Constant Sampling Air Jet Bit Drilling

2010
R. Wang, K. Yin, M. Wang, B. Chen, J. Peng, S. Ji   +5 more
openaire   +1 more source

Reverse-Circulation Drilling

1964
exaly  

The Modified Reverse-Circulation Air Rotary Drilling Technique for Development of Observation and Monitoring Wells at Ground-Water Contamination Sites

1988
exaly