It can be positioned either above the drill bit or above a pilot run inside the existing borehole. Usages range from hydrocarbon drilling operations to water drilling or horizontal drilling.

Hole openers are also used when a hole must be logged, since logging tools generally cannot handle holes larger than 17 and a half inches in diameter.

Hole opener arms have to sustain heavy loads during operations and are generally made of high-grade alloy steel, welded onto a solid alloy steel body.

Some designs feature replaceable arms, allowing for size changes but decreasing overall robustness. Numerous designs exist, in sizes varying from a couple of inches to above 50".

They can have rolling cutters or drag blades, and can be used for either direct or reverse circulation applications.

Product Specifications
Diameter	12 1/4''
Blade	6
Cutter Size	16mm
Nozzle	6
Gauge Protection	3''
Operation Parameters
Rotary Speed (r/min)	60-260
Weight on Bit (KN)	20-160
Flow Rate (lps)	38-62
Formation	Medium hardness and low compressive strength, such as shale, limestone, sandstone, gypsum, etc.

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FAQ

Q: You are a trading company or manufacturer ?

A: Manufacturer, We are a 100% real factory with over 20 years' experience in water/oil/gas wells Drill Bits.

Q: How about your products ?

A : Both of tricone bits and PDC bits strictly conform to API 7 requirements and ISO9001. we will do kinds inspections before delivery, also cover for after-sales service.

Q: Package Methods ?

A: Normally wooden case, also can be steel box; can be customized if need.

Q: Payment Terms ?

A: we accept T/T, L/C, Paypal, Western Union, etc.

Q: Can I visit your factory ?

A: Yes, we welcome you to our factory all the time, will send invitation letters if need; also can show our workshop and warehouse online.

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