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Overburden Tools

Dynadrill O-Dex systems for DTH hammers are designed to drill and case simultaneously through overburden, passing easily through large boulders, pulling lightweight, inexpensive casings behind them. On reaching the bedrock or required depth, the drillstring is removed easily from the hole, leaving the casings in place. Drilling into the bedrock can then be continued using a normal drill bit.

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O.DEX Product Range : 

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O-Dex type Casing, Recom. Min. Wall Max. Drill bit Reaming
  Size MM Max OD/Min. ID Thickness mm Diameter MM Diameter MM
90 115/102 5 90 123
115 142/128 5 115 152
140 171/157 5 140 187
165 196/183 5,5 165 212
180 219/194 6,3 180 232
190 222/205 6,3 190 237
215 257/241 6,3 215 278
230 270/250 6,3 230 286
240 273/260 6,3 240 306
280 327/305 7,1 280 370

 

 

  O.DEX Product Range :
System Description Weight Quantity
    Kg lb  
O.DEX - 90 Guide Device Prithvi 30 7 16 1
  Guide Device IR 3.5 7 16 1
  Pilot Bit 3.6 7.9 1
  Eccentric Reamer 1,4 3 1
  Casing Shoe 1,1 2.4 1
  Guide Sleeve 2 3/8" Box API Reg; wrench flat. 65mm 6 13 1
O.DEX - 115 Guide Device Prithvi 40 12 27 1
  Guide Device Mission 40 12 27 1
  Guide Device IR 340 12 27 1
  Pilot Bit 8 17 1
  Eccentric Reamer 2,6 5.7 1
  Casing Shoe 1,6 35 1
  Guide Sleeve wrench flat 65mm, 2 3/8" Box & Pin API Reg; 8,3 18.3 1
O.DEX - 140 Guide Device Prithvi 50 22 49 1
  Guide Device Mission 50 22 49 1
  Guide Device IR 350 21 45 1
  Pilot Bit 11 24 1
  Eccentric Reamer wear-protection buttons, 189mm reaming dia 4 4 1
  Eccentric Reamer wear-protection buttons, 197mm reaming dia 4 4 1
  Casing Shoe 2,4 5.3 1
  Guide Sleeve wrench flat 95mm, 3 1/2" API Reg; 16,4 36.1 1
O.DEX - 165 Guide Device Prilhvi 60 34 74 1
  Guide Device Mission 60/BOW 34 74 1
  Guide Device Silverdril SD 60 36 79 1
  Guide Device IR 360 34 74 1
  Guide Device QL 60 34 74 1
  Pilot Bit 17 38 1
  Eccentric Reamer 7 15 1
  Casing Shoe 3,2 7 1
  Guide Sleeve wrench flat 95mm, 3 1/2" API Reg.Box & Pin 22 47 1
O.DEX - 180 Guide Device Prithvi 60 44 97 1
  Guide Device Mission 60 44 97 1
  Guide Device Sitverdril SD 60 44 97 1
  Guide Device IR 360 44 97 1
  Guide Device QL 60 44 97 1
  Pilot Bit 24 52 1
  Eccentric Reamer 10 22 1
  Casing Shoe 4 9 1
  Guide Sleeve API 3 112 API Reg.Box & Pin 25 55 1
O.DEX - 190 Guide Device Prithvi 80 47 103 1
  Guide Device Mission 85 47 103 1
  Guide Device Silverdril SD 8 47 103 1
  Guide Device IR 380 47 103 1
  Guide Device OL 380 47 103 1
  PilolBit 29 64 1
  Eccentric Reamer 10 22 1
  Casing Shoe 4,1 9 1
  Guide Sleeve API 4 1I2 API Reg.Box & Pin 25 55 1
O.DEX - 240 Guide Device Prithvi 80 67 148 1
  Guide Device Mission 85 67 148 1
  Guide Device Silverdril SD 67 148 1
  Guide Device IR 380 67 148 1
  Guide Device OL 80 67 148 1
  Pilot Bit 46 102 1
  Eccentric Reamer 18 39 1
  Casing Shoe 7 15 1
  Guide Sleeve API 4 112" API Reg. Box & Pin 40 89 1
O.DEX - 280 Guide Device Prithvi 100 160 353 1
  Guide Device Silverdril SD 10 160 353 1
  Guide Device Numa 100 160 353 1
  Pilot Bit 88 194 1
  Eccentric Reamer 43 95 1
  Casing Shoe 15 33 1