Products

Heavy-wall drill pipes (FLEX)

Design types:

  • with a conical elevator ledge, without central swells;
  • with a flat elevator ledge, without central swells;
  • with a conical elevator ledge, with one central swell;
  • with a flat elevator ledge, with one central swell;
  • with a conical elevator ledge, with two central swells;
  • with a flat elevator ledge, with two central swells;
  • with a conical elevator ledge, without central swells with riffled flats;
  • with a flat elevator ledge, without central swells with riffled flats.

Heavy-wall drill pipes sizes

Diameter, mm Thread as per GOST R
50864 (spec. 7)
Outer, D
Swells, Du
Openings, d
Elevator grooves, De
Pipe bodies, D2
105 102 51 92 89 3-86 (NC31)
121 102 51 97 89 3-102 (NC38)
121 102 57 97 89 3-102 (NC38)
133 114 57 102 102 3-108 (NC40)
133 114 62 102 102 3-108 (NC40)
133 114 63,5 102 102 3-108 (NC40)
159 127 71 114 114 3-122 (NC46)
165 140 75 127 127 3-133 (NC50)
168 140 75 127 127 3-133 (NC50)
168 140 90 127 127 3-133 (NC50)
178 152 85 140 140 3-147 (5 1/2 FH)
178 152 95 140 140 3-147 (5 1/2 FH)
178 152 100 140 140 3-147 (5 1/2 FH)
184 152 90 140 140 3-147 (5 1/2 FH)
184 152 100 140 140 3-147 (5 1/2 FH)
203 181 100 168 168 3-171 (6 5/8 FH)
203 181 115 168 168 3-171 (6 5/8 FH)
203 181 120 168 168 3-171 (6 5/8 FH)

The supply of products with other sizes can be agreed with the customer.