Tigerrig S Series Elastomer Sealed Journal Bearing Bit
Features：
1.Cutting Structure
The wear-resistance of teeth 1s enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit. The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.
2.Gauge Structure
Multiple gauge protection with gauge trimmers on the heel of cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
3.Bearing Structure
High precision journal bearing with two thrust faces. Balls lock the cone. Hardfaced head bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved.
4.Seal And Lubrication
Premium HNBR 0 -ring, optimal seal compression and curved seal structure can enhance the seal performance. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
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.
Current Availability
Bit Size
Bit Type
in
mm
3 1/2
88.9
S527C
4 5/8
117.5
S126 S517
4 3/4
120.7
S116C
5 7/8
149.2
S216 S537 S547 S637
6
152.4
S117W S216 S246 S517 S547
6 1/4
158.8
S127W S247 S517 S527 S547 S637
6 1/2
165.1
S127W S217 S517 S537
6 3/4
171.5
S116W S447 S537
7 1/2
190.5
S127W S127 S517 ST517 S527 ST527 S617
7 7/8
200.0
S117GW ST127W S137W S217 S247 ST437GK ST447GK ST517GK ST527GK
8 3/8
212.7
S217 S517 S547
8 1/2
215.9
ST117W ST127W ST137W ST217 ST247 ST437GK ST447GK ST517GK ST527GK ST537G ST547G S617G S627G S637G
8 3/4
222.3
S116GW S437GK ST517G S537G S627G
9 1/2
241.3
ST117CW ST127GW ST417G ST437G ST517G ST527G ST537G ST547G ST617G
9 5/8
244.5
ST437G ST517G S527G
9 7/8
250.8
S117GW ST417GK ST437G ST517G S527G
10
254.0
S126W
10 5/8
269.9
ST127GW S217G ST437G ST517G ST547G
11
279.4
S117GW S517G S537G
11 5/8
295.3
S117GW S127GW S137GW S217G ST417G ST517G ST537G ST547G
12
304.8
S126W S126 ST517 ST537 ST547 S617
12 1/4
311.2
ST117W S127W S147 ST417GK ST437G ST517G ST527G ST537G ST547G
12 3/8
314.0
ST437G ST517G ST527G ST537G ST547G ST617GY
12 15/32
316.5
ST437G ST517G ST527G ST537G ST547G ST617GY S627G S637G
13 1/8
333.4
ST437G ST517G ST527G ST537G ST547G
13 5/8
346.1
S437G S517G S537G
13 3/4
349.3
14 3/4
374.7
S117GW S127GW S137G S517G S527G
15 1/2
393.7
S127GW S217G S517G S527G S537G S547G
16
406.4
ST117GW ST127GW S127G ST517G ST527G ST537G ST547G
17 1/2
444.5
ST117GW ST127W S137 ST437G ST517G ST527G ST537G ST547G
18
457.2
ST547G
18 1/2
469.9
S547G
Recommended Drilling Parameters
IADC
WOB
(KN/mm) (Bit Dia.)
RPM(r/min)
Applicable Formation
116 117
0.35-0.8
150-80
Very soft formations with low compressive strength and high drill ability, such as clay, mudstone , chalk, etc.
126 127
0.35-0.9
150-70
Soft formation with low compressive strength and high drill ability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc.
136 137
0.35-1.0
120-60
Soft to medium soft formations with low compressive strength and high drill ability, such as medium soft shale, anhydrite, medium soft limestone, medium soft sandstone, medium formation with harder interbed, etc.
216 217
0.4-1.0
100-60
Medium formations with high compressive strength, such as medium soft shale, anhydrite, medium soft limestone, medium soft sandstone, medium formation with harder interbed, etc.
246 247
80-50
Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, anhydrite, marble, etc.
417 437 447
Very soft formations with low compressive strength and high drill ability, such as clay, mudstone , chalk, gypsum, salt, soft shale, soft limestone, etc.
517 527
140-60
537 547
0.45-1.0
120-50
Soft to medium soft formations with low compressive strength, such as medium soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasiver interbed, etc.
617 627
0.45-1.1
90-50
Medium hard formations with high compressive strength, such as hard shale, limestone, sandstone, dolomite, etc.
637
0.5-1.2
80-40
Hard formation with high compressive strength, such as sandstone, limestone, dolomite, anhydrite, marble, etc.