100%new Sliding bearing 71/2" TCI tricone bits

  1, Brief introduction:

It can receive higher WOB and faster rotary speed than conventional roller bearing bits.It is suitable for high RPM applications.

 2,The advantage:

1)Cutting Structure

In response to the characteristics that inserts in different areas on the cone have different cutting actions,conical inserts are placed in permanent contact area and wedge inserts are placed in alternative contact area so that the drilling efficiency is greatly improved.Wear resistance of cutting structure is enhanced by setting diamond inserts in the permanent contact area of the cone where inserts are severely worn.Tungsten carbide inserts are placed on cone top face to protect cone body from abrasive erosion.

2)Gauge Structure

With active cutting gauge protection inserts on bit body,the bit has good gauge protection and updrill capability.

3)Bearing Structure

High precision journal bearing.Balls lock the cone.Hardfaced head bearing surface.Cone bearing inlaid with friction-reducing alloy.Abrasion resistance and seizure resistance of the bearing are improved .Compared with three cone bit,the leg bearing is bigger,so it can receive higher WOB and high reliability.

4)Hydraulic Design

Small angled watercourse design increased the shirttail thickness and can effectively prevent the watercourse erosion.Opitmized hydraulics structure improves the cleaning capability and increase ROP.

5)Product application

It can receive high WOB in the conventional drilling .It is suitable for various formations by matching cutting structure with different tooth shape,tooth density and tooth exposure height.

The organization :

The

 The certification:

The process control:

"Hengji bit,focusing on quality" is our idea."Top quality products and excellent services" is our unchanged corporate concert.

In processing,we control the quality strictly.After qualified ,then permit to next stage. The products are qualified ,then permit to the market.."Hengji bit,focusing on quality" is our idea."Top quality products and excellent services" is our unchanged corporate concert.

If you have any suggestions about my company and the product ,please do not hesitate to tell me,we will improve all the time.If you have any  difficulty for the selection,our engineer may help you .If you have any problems in the use,we will provide the technical support.

Instructions for use:

1,According to the stratigraphic lithologic data, hydraulic and drilling parameters, choose the type of drill bit.

2,According to the hydraulic parameters, choose corresponding nozzle .nozzle hole size difference should not be too large, so as to avoid erosion channel.

3,Before drill down, check the drill bit size, type size is consistent with the well, the nozzle is installed, connected with the drill bit screw thread specification and the joint compliance.

4,The drill bit should be under well as the operation rules.bit and bottom contact, It must operate 30 minutes under light pressure and slow turning (drilling pressure 5-15kN, speed 60r/min) , then can be gradually increased to the normal drilling pressure.

Attentions:

1,Do not use the maximum WOB and maximum RPM at same time!

2,The bottom must be clean, various types of drill do not reaming, slow decentralization, prohibited the pier drilling.

3,Drilling operation must be stable, if have abnormal phenomenon ,such as bit bouncing ,should be timely analysis and take effective measures.

 1. How to order the products?
Answer:
Send the inquiry with detail item description or with Model number.
If there is no packing demand we take it as sea-way packing.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.  http://hengjibit.en.china.cn/

2. About delivery time?
Answer :
The delivery time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement.

3.Can I expect a quality products?
Answer :
Yes. All our activities are accredited to ISO 9001:2008 , both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.

Contact information:

Name:Ocean yang

TEL.:+86-317-8114222

QQ: 2197735445