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Home > Products > PDC Bits > Bi-center Bits > Bi-center drill bits new technology
Bi-center drill bits new technology
Bi-center drill bits new technology
  • Bi-center drill bits new technology
  • Bi-center drill bits new technology

Bi-center drill bits new technology

    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
    Min. Order: 1 Piece/Pieces
    Delivery Time: 3 Days

Basic Info

Customized: Customized

Certification: API

Length: Other

Type: Other

Material: Diamond

Use: Well Drilling

Body Type: Matrix Body

Additional Info

Packaging: PDC bits will be packing by iron case or carton case,wooden case,according to customers' requirement.

Productivity: 10000 Piece/Pieces per Year

Brand: Great

Transportation: Ocean,Land,Air

Place of Origin: Cangzhou,Hebei

Supply Ability: Level 1

Certificate: API/ISO

HS Code: 8207199000

Port: Tianjing Port,Beijing Airport

Product Description

This is a new generation Bi-center PDC Bits ideal for drilling a larger-than-nominal hole through standard casing inder diameter .

The expanded hole size results in higher quality cementing and logging operations and allows for restricted clearance casing diameters.

Bi-center Bits including two parts , One is Pilot bit , the PDC bit drills pilot hole with gauge relief reducing formation stress for improved ROP.

The other parts is Reamer , The PDC blades rotate Around the pilot bit opening the hole to maximum diameter .

For more understanding to our new technology ,please contact with us .

Engineered Cutting Structure

Bi-Center Bits developed using Great Proprietary design software , to ensures cutting structure optimization for specific applications . This bit behavior in different rock type during a simulated driling process.

This tool also evaluates cutter wear as result of friction and heat transfer .Using Appropriate rock geology and mechanical properties, also performs sensisitivity analysis for various drilling parameters (WOB and RPM ) to evaluate their effects on ROP ,cutter wear ,bit vibrations and footage drilled.

High Performance Cutters

Application-specific PDC cutters incorporating advance carbide interface geometry (CIG) and material are used.

Diamond Grades are selected ,analyzed and prepared to maximize abrasion resistance .

Hydraulics

Bits go through elaborate computational fluid dynamics evaluation to identify and eliminate possible stagnation zones . During this process, bit and bottom hole cleaning are optimized to enhance bit performance .

This sophisticated process improves cleaning efficiency , cutter cooling and ROP .

Products Specifications
Reaming Diameter 9 7/16''
Pass Thru Diameter 8 1/2''
Pilot Bit Diameter 6 7/8''
Body Type Steel
Material AISI 4145H ,Heat treatment
Profile Medium Parabolic
Cutter Size 1613mm
Pilot Blades 4
Pilot Face Cutters 21 (1613)
Pilot Gage Cutters 4 (1305)
Reamer Blades 6
Reamer Face Cutters 14 (1613)
Reamer Gage Cutters 7 (1308 )
Reamer Gage Pads 10 (1305)
Total Cutter Count 56
Connection 3 1/2''API Regular
Pilot Nozzles/Ports 4 Ports
Reamer Nozzles/Ports 4 Ports
Gage Length 2'' Pilot , 3'' Reamer
Gage Type Arc PDC Cutters
Make Up Length 15.1''
Operating Parameters
Rotary Speed For all rotary and motor applications
Flow Rate (lps) 22 - 40 GPM
Weight On Bit (KN) 40-60 (4.0-6.0t )
WOB ,Max (KN) 80 ( 8.0t )

Company Profile

Cangzhou Great Drill Bits Co. Ltd., founded in 2010, speciallized in processing research of steel and diamond materials, is involved in the R&D, design, production and sales of petroleum equipment, up to now we have being the top material supplier of CNPC, SINOPEC, CNOOC. We have a 40,000 m² of production based in Hejian provincial development zone ,Hebei, and several international advanced production lines featured in turning-milling compound, five-axis linkage, special for high-performance diamond processing, with the annual production capacity of more than 10,000 pcs. We provide the drill bits from 3" to 26" ,HDD Hole Opener from 8``- 48`` ,Such as PDC bits , Cone Cutters, Tricone Rock bits, PDC Coring bit, Bi-center bits, Reaming tools, Hole Openers , Rock Reamers ,etc.

Depending on our advanced design tools, manufacturing processes, international management system and continuous technological innovation. we got the highly-degree recognization to our product quality from both domestic and foreign customers. The well strategic partnership with major domestic oilfields have been sounded. The products also are exported to India, the United States, Russia, Canada, the Middle East, Indonesia and other countries and regions.

The Company consistently adhere to the concept of industrial development to promote energy development , adhered to innovative drive, scientific development, and is one of the largest scale companies in Asia for PDC bit and Tricone bit, Hole Opener manufacturer.

Our Advangates

1. Two manufactures: New manufacture with 40,000 square meters in Hebei Province ,very near to Beijing , and build our own R&D Exchange Center in Beijing.

2. Goverment give us a High-tech Firm Authories Certification,we got API Spec7-1 Quality Control Standard. ISO9001:2008 Quality Management System. ISO14001:2004 Environment Management System.

3. DMG and Mazark machines manufacture with high precision .

4. Strong designs , engineers , production, sales and after sales service team.

5. OEM&ODM service.

Great Bi-center bits

Our Team :

We have almost 300 employees in factory base in Hebei Province . But the sales team located in different region in China .Also we have field engineers who speak English , Russia , Arabic in overseas countries ,such as Saudi Arabia , UAE , Russia , Southeast Asia etc .

Package to PDC bits and Bi-center bits :

Pdc Bits With Bit Breakers








Looking for ideal Offshore Drilling Bits Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Drill Bits Design to Enhance ROP are quality guaranteed. We are China Origin Factory of Offshore Drilling Bits. If you have any question, please feel free to contact us.

Product Categories : PDC Bits > Bi-center Bits

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