Essential details
Shipping:Ocean freight
Product Introduction
Product Overview
The outer surface of the Type B spiral drill collar is machined with right-hand helical grooves. This design reduces the contact area with the wellbore, thereby minimizing the risk of differential sticking while maintaining the weight and stiffness characteristic of standard drill collars. The product is manufactured from AISI 4145H alloy steel, complies with API 7‑1 standards, and can be customized in terms of outside diameter and length to meet specific requirements.
The outer surface of the Type B spiral drill collar is machined with right-hand helical grooves. This design reduces the contact area with the wellbore, thereby minimizing the risk of differential sticking while maintaining the weight and stiffness characteristic of standard drill collars. The product is manufactured from AISI 4145H alloy steel, complies with API 7‑1 standards, and can be customized in terms of outside diameter and length to meet specific requirements.
Product Description
• Basic Information: The spiral drill collar is a specialized type of drill collar featuring three right-hand helical grooves machined on its outer surface. This helical design reduces the contact area between the drill collar and the wellbore, thereby significantly lowering the risk of differential sticking. Despite the reduced contact area, the spiral drill collar maintains the same weight and stiffness as a standard smooth drill collar. It is manufactured from AISI 4145H alloy steel.
• Basic Information: The spiral drill collar is a specialized type of drill collar featuring three right-hand helical grooves machined on its outer surface. This helical design reduces the contact area between the drill collar and the wellbore, thereby significantly lowering the risk of differential sticking. Despite the reduced contact area, the spiral drill collar maintains the same weight and stiffness as a standard smooth drill collar. It is manufactured from AISI 4145H alloy steel.
• Application scenarios: Directional and horizontal wells with a high risk of differential sticking; wells with significant wellbore deviation; and high‑pressure differentials. Suitable for challenging drilling environments.
• Product Advantages: Reduces wellbore contact; lowers the risk of differential sticking; maintains full weight on bit (WOB) and rigidity; API 7‑1 certified; customizable spiral groove designs available.
• Customer Case Feedback: The preferred choice for directional drilling projects. Customers report a significant reduction in stuck‑tool incidents.