PERCUSSION AND REVERSE CIRCULAION ENGINEERING DRILLINGRIG OF GCF-1500 TYPE

Yu Zhongshan. PERCUSSION AND REVERSE CIRCULAION ENGINEERING DRILLINGRIG OF GCF-1500 TYPE[J]. COAL GEOLOGY & EXPLORATION, 1999, 27(6): 65-66.

Citation:

Yu Zhongshan. PERCUSSION AND REVERSE CIRCULAION ENGINEERING DRILLINGRIG OF GCF-1500 TYPE[J]. COAL GEOLOGY & EXPLORATION, 1999, 27(6): 65-66.

Citation:

Yu Zhongshan. PERCUSSION AND REVERSE CIRCULAION ENGINEERING DRILLINGRIG OF GCF-1500 TYPE[J]. COAL GEOLOGY & EXPLORATION, 1999, 27(6): 65-66.

Abstract

The technical parameters and performance characteristics of percussion and reverse circlatuin engineeing driller of GCF-1500 type are introduced. The driller adopts the percussion and reverse circulation drilling pattern,with the higher drilling efficiency and wider formation suitability.

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