Well Hole Eccentric Overburden Casing Drilling Bit System DTH Bits

Product name: 133MM MRING single-use symmetric caisng drilling system for water well drilling

Product category: Symmetric casing drilling system

Matched hammer: Hammer DHD340

Matched casing pipe OD: 133mm

Kingdrilling symmetric casing drilling bit is recommended to drill in rock formation where contains some ovals and fractures.

When simultaneously drilling and casing through loose overburden materials, our Casing drilling system gives you great results. They are a cost-efficient system that leaves less material behind in the hole.

MRING casing bit components:

Pilot bit + ring bit + casing shoe

MRING casing bit details:

How to order:

Casing Tube OD & ID + Ring Bit Diameter + Hammer Shank + Maximal Normal Bit Diameter +

Casings and Casing Shoes Installation Method (if by threads, threads standard must be offered)

Other size of MRING system is available upon customer's request

FAQ: 

1. What is double casing in borehole drilling?
In the process of drilling, the drilling fluid injected through double intermediate casing annulus is converted by the jet generator into a high-efficiency steering water jet, which, together with the water jet generated by the bit nozzle, increases the fluid returning rate in the inner annulus space

2. What is another name for overburden?

Burden, overload, oppress, overwhelm, tax, encumber, load, overtax, overfill, overcharge

3. How does a casing advancer Work?
The Casing Advancer has been designed to allow drilling and casing to be carried out at the same time as one integral operation. This feature eliminates the need to drill the large diameter hole with a Rock Bit, pull the drill rod string and Rock Bit from the hole and then ream the casing back into the hole.

Products Manufacturing: