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What is Steel Casing Tubes for Overburden Casing System?
Nov 12, 2018

Steel Casing Tubes for Overburden Casing System Application Range 

Applied in overburden rock formations to prevent the hole from damage.

The rock formations usually contains some water, sand or not stable nor average formations.

It is widely used in anchoring and grouting. ODEX or Symmtric casing drilling are usually applied.

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Operation Procedure 
1.When drilling starts,the reamer opens and enlarges the hole to drive the casing shoe and casing tube down, 
2.When the drilling in overburden formation is finished,reserve the rotation to close the reamer,then the assembly can be pulled up through the casing tube. 
3.The casing tube can be left in the hole,or can be pulled out by means of frout sealing material. 
4.Use the normal drilling tools to drill and achieve to the desired depth. 

 

Steel Casing Tubes for Overburden Casing System
NameOuter Dia.(mm)Inner Dia.(mm)Length(m)
Casing Tube1089311.523
11410211.523
12711511.523
14012411.523
14613011.523
16814811.523
17815811.523
18316311.523
19417411.523
21919911.523
24522511.523
27325311.523
32530511.523
40638211.523
50848411.523


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