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Api 7 1 Spiral Drill Collar - China
price: contact company for price
API 7-1 Spiral Drill Collar Manufacturer | Longway
Type B spiral drill collars feature right-hand spiral grooves machined into the outer surface.
This design reduces the contact area with the wellbore, minimizing differential sticking risk while maintaining the weight and rigidity of a standard drill collar.
Manufactured from AISI 4145H alloy steel to API 7-1 standards.
Available in custom outer diameters and lengths.
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Product Description
Spiral drill collars are a specialized type of drill collar with three right-hand spiral grooves machined into the outer surface.
The spiral design reduces the contact area between the drill collar and the wellbore, which significantly lowers the risk of differential sticking.
Despite the reduced contact area, the spiral drill collar maintains the same weight and rigidity as a standard slick drill collar.
Manufactured from AISI 4145H alloy steel.
Longway manufactures API 7-1 spiral drill collars from AISI 4145H alloy steel.
Three right-hand spiral grooves reduce continuous contact with the wellbore wall and provide external flow paths, helping lower differential-sticking tendency in directional, deviated and horizontal wells.
Longway supplies spiral configurations within its broader oilfield drill collar range.
Company Contact:
- Posted By: Hebei Longway Petroleum Equipment Co., Ltd.
- Phone: 19930620733
- Address: Beikou Economic Development Zone, Yingli Town, Jinzhou City, Shijiazhuang, Hebei Province, China, Shijiazhuang , hebei , China
- Email:
- Website: https://www.longwaydp.com/
Published date: November 10, 2026
- Business Description: As a professional oil drilling tools manufacturer,we can supply high quality drill pipe with competitive price and perfect after sale service.
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