8 ¼” X-Series
The “X” means extra flexible and reflects an extensive operational capability in terms of drilling parameters and well curvature.
With its 8 ¼” OD, the tool provides for improved flexibility in terms of bit size, but with a yield capacity comparable to the larger tools. A large stroke capacity of 10” or 0.25m gives the tool a working range that makes it an optimal solution for performance-drilling using aggressive cutter structures without risk of initiating vibrations and stick-slip in challenging layers.
The inner diameter is 2 ¾” and presents no restrictions to drop-balls. The pressure loss through the tool is minimal (less than 30 psi at 1200 GPM or 2 bar at 4500 lpm ) and the tool can be configured for high temperatures.
|Length||5.44 m||17.85 ft|
|Max. OD||209.6 mm||8.25”|
|Min. ID||70 mm||2.75”|
|Connection top||API 6 5/8 REG box||API 6 5/8 REG box|
|Connection bottom||API 6 5/8 REG pin||API 6 5/8 REG pin|