SITE INVESTIGATION

Getting through a hard place

A look at the versatility of DTH tooling for contractors with small scale rigs

Joe Haynes
 A DTH hammer can drill as deep as 300ft through limestone, sandstone and quartzite faster than standard mud rotary bits

A DTH hammer can drill as deep as 300ft through limestone, sandstone and quartzite faster than standard mud rotary bits

When it comes to drilling, the overburden is usually the easiest layer to deal with. It is when drills finally hit hard rock formations that progress can dramatically slow down. If drilling crews run...

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