Spiral Drill Collars

At Kriloha Ltd., we supply Spiral Drill Collars, specialized bottom-hole assembly (BHA) components designed to provide weight on bit (WOB) while minimizing the risk of differential sticking. The spiral grooves cut along the collar’s length reduce contact area with the wellbore wall, improving mud circulation and hole cleaning. Manufactured from solid alloy steel forgings, Kriloha spiral drill collars are engineered for strength, toughness, and fatigue resistance in HPHT wells. They offer the same weight benefits as slick collars but with added reliability in complex trajectories. Applications include deepwater drilling, extended-reach wells, directional and horizontal wells, where hole cleaning and reduced sticking risk are vital. Each collar undergoes ultrasonic inspection, hardness testing, groove verification, and dimensional checks, ensuring API 7-1 compliance. As a supplier and facilitator, Kriloha Ltd. offers custom groove profiles, collar sizes, and technical assistance, ensuring operators achieve safer and more efficient drilling performance.