Centralizer Increases Production Rates, Extends Life Of Other Tools

HDD Best Practices
By Jeff Griffin, Senior Editor | June 2009 Vol. 64 No. 6

"In some instances, centralizing in front and behind the hole opener is recommended," he said. "Experienced drillers develop an understanding of what a job requires. During push reaming, centralizing behind the hole opener will help with weight on bit and tool life. Not centralizing will cost money due to the premature wearing out of the cutters and tooling. New tools have to be rented or purchased and there will be freight added to that. The tool will need to be repaired if it is a rental tool. Centralization will not protect a hole opener 100 percent, but it will allow the tool a chance to achieve its maximum potential."

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