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How to choose the right tricone bit for your rock HDD drilling

Publication Date: 2020-05-08

How to choose the right tricone bit for your rock HDD drilling

Date: 20200508

HDD Drilling Tricone bit types and choose

We will come across rock HDD drilling project time to time. There are so many kinds of tricone bits options. Which one should be right for us? Let ZLCONN introduce to you.

How to choose the right HDD tricone bit small

How to choose the right HDD tricone bit small

Compress Strength <25mpa,       Formation hardness: Very soft,     Rock type: clay, silts, sands.    Choose 111/124 tricone bit

Compress Strength 25 to 50mpa,    Formation hardness: Soft,     Rock type: claystone, marl, lignite,sandstone,tuff .     Choose 116/137  437 tricone bit

Compress Strength 50 to 75mpa,     Formation hardness: Middle soft,     Rock type: claystone, marl, lignite,sandstone,tuff, Anhydrites…     Choose 136/137 517 527 tricone bit

Compress Strength 75 to 100 mpa,     Formation hardness: Medium,     Rock type: Mudstone, Limestone,anhydrites, sandstone(calcareous)    Choose 211/217 517 537 tricone bit

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