concentric casing system with wings

Specifications

DTH drill bit  down to the hole for water well drlling

Application Range:

It is recommended to drill in rock formation where contains some ovals and fracture.

Design Principles:

The stabel and reliable working performance and the less vibration of drill rig.

Different Structures:

Concentric system with ring bits,with wings and with blocks.

Operation Procedure

1.when the drilling starts, the wings swing out, and reams to drive the casing shoes and tubes into the hole.

2.When finished the drilling in overburden rock formations, reverse the drilling tools and the wings will get closed, and the drilling tools can be raised from the hole.

3.Next construction can be followed.

Photos: 

Guide Device

Wings

How to complete the whole deal

Step: 

1. Firstly decide the design, material and color 

2. Decide the size in accordance with client's requirement and our

 recommendation 

3. We will give the best offer. 

4. Client's accept the offer and we send proforma invoice. 

5. Client transfers 30%-50% deposit and production begins

6. After production, we will send ready products photo 

7. After client's confirmation, we will arrange shipment, and send 

copy shipping documents like B/L, commercial invoice and 

packing list 

8. Client transfer balance payment and we will send original 

documents by DHL or EMS