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Rig Bit

Category: Drilling accessory equipment
Key words:Drilling accessory equipmentRig Bit
Service Hotline:+86-513-87635480
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Product description
Parameters

12-1/4” BD535

Characteristics:

IADC code : M221

blades qty. : 5

nozzles qty : 5

total cutters : 40

primary cutter size : 3/4"(19mm) standard gauge length : 4.5"(11.43cm) junk slot area : 42.1 in 2 (271.61cm 2 )API pin connection : 6-5/8" API Reg.

Recommended Parameter :

hydraulic flow rate : 550-850 gpm rotary speed : 60-350 rpm

weight on bit : 4,000-14,000 lbs maximum weight on bit : 24,000 lbs

Engineered Cutter Layout

Engineered cutter layout position on the bit is developed for specific applications in order to take design advantage . Cutter placement is critical in providing a total application solution.

Application Of Specific Cutters

The cutter interfaces (RAD, AXSYM and DIAX) have been developed for optimum performance in different drilling environments. These interfaces are then matched to your specific application.

Balanced Flow Hydraulics

Cutting removal and bit cooling for black diamond PDC bits are optimized by matching volume of rock removed by cutters on each blade with proportional fluid flow.

Hydrofoil Gauge Pad

Hydrofoil shape of gauge channels hydraulic fluid and cutting to annulus. This streamlined flow deters balling tendency caused by vortices and eddies.

8 1/2 ” S280G8

Specification :

IADC code : M814. TFA : 1.25in 2 (8.06cm 2 )

gauge length : 12.0"(30.84cm) TCIDIA. API pin connection : 4-1/2" API Reg. Box

recommended parameter :

hydraulic flow rate : 125-250 gpm

rotary speed : 80-500 rpm

weight on bit : 10,000-25,000 lb

Impregnated Diamonds

Bits utilize a unique process where diamond cutters are sintered into a tungsten carbide maxtrix whose composition is matched to formation to be drilled. Impregnated designs continually expose a sharp cutting edge and they are designed from drill medium hard to the hardest, most abrasive formations at a variety of rpm, including rotos, PDMs and turbines.

Radial Flow Hydraulics

Radial flow assures efficient cutting remova l and prevents the bit premature wear. Fluid flowing from bits' axis towards shoulder through a series of parallel and expanding fluid courses cleans and cools diamonds more efficiently.

Maxtrix Body

Bits constructed with tungsten carbide maxtrix bodies are tough and extremely resistant to corrosion and abrasive formations. High pressure drops across bit face, long bit run and a high solid contained in mud are possible with this bit body material. In addition, maxtrix bodies permit greater design flexibility and allow hydraulic programs to be optimized for each application.

Natural Diamond Gauge

Because of their super wear resistance natural diamonds are used for gauge protection. The feature ensures consistence of hole size throughout the entire bit run.

6 1/8 ” D41

Specification

IADC code : M712. TFA : 0.45in 2

gauge length : 3.0"(7.62cm). API pin connection : 3-1/2" API Reg.

recommended parameter

hydraulic flow rate : 125-250 gpm

rotary speed : 80-500 rpm

weight on bit : 10,000-25,000 lbs

Small To Medium Diamond Size

D41 is typically set with 4 to 12 stone -per- carat natural diamonds for drilling hard, dense formations with high compressive strength and moderate abrasion. It is used in both motor and rotary applications.

Crown Profile

B profile maximizes diamond concentration across nose to ensure even diamond wear. Transition zones across face of bit are reduced, preventing excessive point loading, minimum cutter breakage and better performance in hard, abrasive formations.

Feeder/Collector Hydraulics

D41 is designed with cross pad for maximum cooling of diamonds. Fluid is drown across diamond pads from high pressure feeders into low pressure collectors. The configuration allows greater diamond density across nose to improve bit life.

Natural Diamond Gauge

Because of their super wear resistance natural diamonds are used for gauge protection. The feature ensures consistence of hole size maintained throughout their entire bit run. A full gauge hole eliminates reaming and makes sure that bits are not damaged and do not become stuck on subsequent trips.

The tricone rock bits

The tricone rock bits are important tools used for drilling, and are widely used for geological prospecting, development of oil and gas. In addition, they are used for drilling water wells, blast holes, and making holes for seismic prospecting, and used in construction engineering. Now , there are eleven common types of tricone rock bits ,which include Y ,P ,M ,MP ,HP ,PC ,XMP ,SH ,SHJ ,SHT and SK series in the markets to meet those different requirements of drilling . The size of the gauge diameter and the sizes and types of connections are strictly designed in accordance with the standards and specifications in API Spec.7, and have attained the certificate of the American Petroleum Institute (API) .

SPECIFICATIONAS:

size of bit

in.

3 3/4

4 1/8

4 1/4

4 3/8

4 5/8

4 3/4

5 5/8

5 7/8

6

6 1/8

mm

95.2

104.8

107.9

111.1

117.5

120.6

142.9

149.2

152.4

155.6

Original Connection Thread

2 3/8

3 1/2

     

bit size

in.

6 1/4

6 1/2

6 3/4

7 3/8

7 1/2

7 7/8

8

8 1/4

8 3/8

8 1/2

mm

158.7

165.1

171.4

187.3

190.5

200

203.2

209.6

212.7

215.9

Original Connection Thread

3 1/2

4 1/2

Selected Original Connection Thread

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bit size

in.

8 5/8

8 3/4

9 1/2

9 5/8

9 7/8

11

12

12 1/4

13 5/8

13 3/4

mm

219.1

222.2

241.3

244.5

250.8

279.4

304.8

311.1

346.1

349.2

Original Connection Thread

6 5/8

   

bit size

in.

14 3/4

15

15 1/2

16

17 1/2

20

22

24

26

36

mm

374.6

381

393.7

406.4

444.5

508

558.8

609.6

660.4

914.4

Original Connection Thread

6 5/8

7 5/8

8 5/8

Selected Original Connection Thread

7 5/8

8 5/8

 

 

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