The 6 ¾” X-Series AST has a stroke capacity of 8” or 0.2m and can be configured for regular vertical as well as deviated drilling. The tool is viable for operations up to 425 F (220 C) and is routinely used in HTHP operations. The ability to manage drilling vibrations and stick-slip at deep depths can be used to optimize the use of PDC type drill-bits and mud motors in hot, compacted rock.
The pressure loss through the tool is minimal (less than 30 psi at 500 GPM or 2 bar at 1900 lpm ). The tool can carry electronics to measure the actual work performed downhole.
|Connection top||NC 50 box||NC 50 box|
|Connection bottom||NC 50 pin||NC 50 pin|