Zhengzhou Chenghe Machinery Co., Ltd.| Sourcing Services
Zhengzhou Chenghe Machinery Co., Ltd.

China Manufacturer with main products: Non-Magnetic Drill Collar, Drill Collar, Drill Pipe, Oilfield Stabilizer, Spiral Drill Collar, Forged Parts, Shaft/Gear, Packing Machine

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Spiral Drill Collars

FOB Price: 2120.00 - 11200.00 USD/Piece
Supply Ability: 6,000 Piece/Pieces per Year
Shipping: 45-50days
Payment Terms: L/C, T/T(Bank Transfer)
In Stock
Place of Origin: Henan in China
Packaging Details: Packaged with metal frame

Specifications

Spiral drill collars are one kind of the products of our company. Spiral grooves make mud circulate freely around the drill collar to equalize pressure and prevent a seal from forming. It reduces the occurrence of differential pressure sticking.  Spiral prevents differential sticking without spiral.
Spiral drill collars are widely used because of their maintenance features. The special grooves  decrease the volume of the contact between the well side and the pipe. It leads to the decrease of the "tack” of the pipe and to turning of the drill pipe string.
The weight of round drill collars will be reduced  approximately 4-6% by spiral conversion.

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