tricone bits for oilfield from China manufacturer - Hejian Hengji Bit Manufacture Co.,Ltd

Product Detail

Model No.: 8 1/2 IADC637

Production Capacity: 200 piece/week

Delivery Date: 3-6 months

Type: Drilling Rig

Use: well drilling

Means of Transport: Ocean,Air

Packing: wooden case or as your requ...

Application: Oil

Brand Name: HJ

Material: Tungsten Carbide

1.drilling tricone bits
2.excellent in quality
3.Cover all IADC code

1.Deatails:

Available sizes:

60mm,65mm,76mm,93mm,95mm,98mm(3 7/8"),101.6mm,114mm,118mm,120mm,127mm(5")

130.1mm(5 1/8"),133.3mm(5 1/4”),139.7mm(5 1/2”),142.8mm(5 5/8”),149.2mm(5 7/8”)

152.4mm(6”),155.5mm(6 1/8”),158.7mm(6 1/4”),161.9mm(6 3/8”),165.1mm(6 1/2”)

190.5mm(7 1/2”),193.6mm(7 5/8”),200.0mm(7 7/8”)

212.7mm(8 3/8”),215.9mm(8 1/2”),222.2mm8 3/4”)

241.3(9 1/2”),244.4(9 5/8”),250.8(9 7/8”)

269.8(10 5/8”),295.3(11 5/8”)

311.1(12 1/4”),346.0 (13 5/8”),349.2(13 3/4”)

374.6(14 3/4”)

381(15”),393.7(15 1/2”),406.4(16”)

444.5(17 1/2”),508(20”),558(22”),609.6(24”)

660.4(26”)

2.Available models:

Steel tooth (IADC)	111, 121,131 117,124,126,127,136,137 211,311 216,217, 227
TCI (IADC)	415,435, 417,437 515,525,535,545, 517,527,537,547 615,625,635,,617,627,637,737 512,522,532,612,622,632,732

3.characteristic

series	characteristic
Soft formation TCI tricone bits	The soft formation TCI tricone bits are used to drill low compressive strength, very soft formations. This bit maximized to use of both conical and chisel tungsten carbide inserts of large diameters and high projection. This cutting structure design, combined with maximum cone offset, results in high bit penetration rates. The deep intermesh of cutter rows prevents bit bailing in sticky formations.
Medium formation TCI tricone bits	The medium formation TCI tricone bits features aggressive chisel tungsten carbide inserts on the heel rows and inner rows. This design provides a fast drilling rate and added cutting structure durability in medium to medium hard for mations. The HSN rubber O-ring provides adequate sealing for bearing durability.
Hard formation TCI tricone bits	The hard formation TCI tricone bits can be used to drill hard and abrasive formations. Wear resistance tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge. Maximum numbers of hemispherical shaped inserts are used in all rows to provide cutter durability and long life.
Medium hard formation TCI tricone bits	The medium hard formation TCI tricone bits features robust chisel tungsten carbide inserts on the heel row and conical on the inner rows. This design provides a fast drilling rate and added cutting structure durability in medium to medium hard formations. The HSN rubber Oring provides adequate sealing for bearing durability.