New Fastest 8.5” Building Section in NORTH KUWAIT


Onshore – 8.5” Build section.

Interbedded, Limestone, Sandstone, Shale Formations

Rotary Steerable Drive System (RSS)


EVOS™ 616

Weatherford Revolution® RSS


North Kuwait


Customer Challenge

The Customer focused on drilling the 8.5” build section using a rotary-steerable assembly with the goal of completing the section in one PDC bit run – additional challenges required mitigating stick slip vibrations while achieving the best possible ROP.

The ‘Top 6’ performance offset wells in the same field using PDC bit design achieving 36.2 ft/h ROP average across the field. Record run in the area was set @ 43.8 ft/h.

Varel Solution

Solution: 6-bladed, 16-mm cutting structure with Premium long Gage and shock studs.

Purpose: The Premium long Gage designed to perfectly match with the RSS drive requirement. Shock Studs helps to increase drill bit stability and limit vibrations while maintaining bit normal smooth cutting action.

Customer Value

New noteworthy field record accomplished as compared to previous benchmark with lowest cost per foot achieved for entire North Kuwait region.

  • Drilled a total footage of 1610ft with Field Record ROP of 46.7/hr.
  • Achieved 29.0% increase in ROP as compared to ‘Top 6’ field average performance.

Download the case study