Drill Collars Grooves

At Kriloha Ltd., we supply Spiral Grooved Drill Collars, advanced bottom-hole assembly components that reduce differential sticking and improve mud circulation in the annulus. The spiral grooves machined along the collar’s surface create turbulent flow patterns, improving hole cleaning and reducing the risk of stuck pipe. Constructed from solid alloy steel forgings, Kriloha grooved collars provide the same weight on bit (WOB) benefits as slick collars, while offering enhanced drilling performance in complex wells. Applications include deepwater wells, HPHT drilling, directional and horizontal drilling, where mud circulation and hole cleaning are critical. Each grooved drill collar undergoes groove depth verification, hardness testing, ultrasonic flaw detection, and dimensional checks, ensuring long-term reliability. As a supplier and facilitator, Kriloha Ltd. delivers custom groove patterns, spiral designs, and engineering support, making our grooved drill collars the preferred choice for challenging drilling environments worldwide.