JT-PETRO can provide Tricone Bits,Roller Cone Bits,Diamond Bits,Mining Bits and Two-Stage Roller Cone Bits for Water Well
Tricone Bits
Roller Cone Bits
We can provide all kinds of drill bits including roller cone bits, diamond bits, mining bits and engineering bits, which have novel structures and suitable for various formations.China has the largest R&D and manufacturing base of drill bits in Asia, developed the “simulation analysis system for rock bit performance” and the die exploitation system based on 3D software Pro/E, and established the CAD/CAPP/CAE/CAM integrated design platform.
Most of the Chinese manufacturers of bits are equipped with numerically-controlled and specialized equipment and possess advanced technology such as flexible manufacturing system (FMS) and heat treatment technology with nitrogen base controllable atmosphere. They have established mature quality assurance system which is API or ISO 9001 certified and their products are API monogrammed.
Diamond Bits
JT-PETRO can provide different kinds of diamond bits (3 1/2″- 17 1/2″) for different purposes, ranging from PDC, TSP and natural diamond drilling bits, core bits and bits for special applications. Meanwhile, JIATONG can also provide other types of drilling bits with specific design according to the requirements of customers.
Jiatong company has provided the China-made drill bits to Europe, USA, the Middle East, Southeast Asia and Africa.
- Bit size code: OD size, ID size
- Cutter type code: F, K, S, R, J, D
- Bit type code: M, S, X, B, Q
- Cutter density code: PDC and TSP, indicate with number 1-4 and 6-8, respectively from sparse to dense
- Bit crown shape code: NO.1 fishtail bit, NO.2 shallow cone, NO.3 short parabola, NO.4 parabola.
- Design and classification code: 1-9 .
- Additional specifications: generally include the material grand and other additional explanations
For example: 84FM235A
84-8 1/2″OD
FM-FM series
2-the second formation
35-code of design classification
A-Class A cutting elements
Mining Bits
K series bits are non-sealed roller bearing bits that are cooled and cleaned by air. The main structure features include:
Utilization of carbide compacts with high strength, high toughness for increasing impact strength and wear resistance for reducing compact breakage
Optimized number of compact rows and total number of cutters
Cutter exposure and compact shape to maximize the cutting ability and the cutting speed of the bit
Adequate heat-treated bearing surface to increase the bearing capacity and service life
The thrust bearing to further increase the overall bearing capacity, improve the air circulation condition inside the bearing cavity and reduce the temperature in the cavity
The air-water separator can prevent water or cuttings from entering the bearing cavity through waterway or nozzles while supplying cooling air to the bearing.
Statically placed nozzles are advantageous to thoroughly clean the bottom hole, and the nozzle diameter can be selected according to specific air pressure and flow rate.
Optimum designed head shape provides maximum space to remove the cuttings out of the bottom hole and increase the penetration rate
Head O.D. is well protected by additional carbide compacts and special hard-facing
Two-Stage Roller Cone Bits for Water Well
The advanced design and manufacture technologies for tri-cone bits for oil well drilling are suitable for large diameter water well and geothermal well drilling operations. The main features include:
Two-stage cone structures can achieve higher ROP under lower WOB.
Complete set of cones placement allows thorough break down of the rocks at the bottom hole.
Reaming bit connection parts are machined to ensure diameter, pegleg and concentricity requirements of the bit.
With the advanced hardfacing technology, the wear resistance of the teeth is improved. By using the compacts of high toughness and excellent wear resistance, the impact strength of the compacts on insert bit is increased and the breakage rate of the compacts is reduced.
A pad in front of each cone of the reaming bit can prevent the loss of cone.
Hobbing Bits for Rock Breaking
The rock breaking hobbers can be assembled into hobbing bits of various sizes, which are suitable for large diameter engineering drilling operation.
Optimized hobber placement allows that the hobbers achieve the higher penetration rate under lower WOB. Advanced steel cutter hardfacing technology increases the wear resistance of the cutters.
Insert hobber utilizes compacts with high toughness and excellent wear resistance and can increases the impact capacity.
The application of reliable sealing structure and new type of grease with low friction make the bits can sustain high temperature. Once damaged, the hobber can be replaced on site and the maintenance is very easy.
Drilling Hammers and Bits
This drill bit is designed specially for mines, water conservancy projects, building and road making projects. Downhole drilling hammers are widely used in mines, hydropower station, railway, roadway, construction of water-well and stone work. Model JZ high air pressure downhole drilling hammers and bits are of large penetration and efficiency. Hammer and bits can drill holes of 105-864mm in diameter under various conditions.
