Junk Sub

Junk Sub FEATURES

The junk sub type LB is an efficient tool used in milling or drilling operations. The tool is manufactured from high-strength heat-treated alloy steel. It is designed to capture cuttings that are too heavy to be circulated in the bottom of the hole.

 

Technical Specifications

Type

Suitable well diameter
mm
(in)

Connection
API

Water  Hole
mm
(in)

Max. O.D.
mm
(in)

Overall length
mm(in)

Standard
(S)

Long
(L)

Extra-long
(EX)

LB82Ⅱ·S

95.2~114.3
(3 3/4~4 1/2)

NC23
2 3/8 REG

20
(13/16)

82
(3 1/4)

775
(30 1/2)

-

-

LB94·S

108~117.5
(4 1/4~4 7/8)

2 3/8 REG

20
(13/16)

94
(3 7/10)

800
(31 1/2)

-

-

LB102·L

117.5~124
(4 5/8~4 7/8)

2 7/8 REG

32
(1 1/4)

102
(4)

749
(29 1/2)

1118
(44)

1372
(54)

LB105·S

117.4~124
(4 5/8~4 7/8)

2 7/8 REG

32
(1 1/4)

105
(4 1/8)

749
(29 1/2)

-

-

LB114·L

130~149
(5 1/8~5 7/8)

3 1/2 REG

38
(1 1/2)

114
(4 1/2)

775
(30 1/2)

1143
(45)

1397
(55)

LB127·L

152~162
(6~6 3/8)

NC31
3 1/2 REG

38
(1 1/2)

127
(5)

775
(30 1/2)

1143
(45)

1397
(55)

LB127Ⅱ·L

152~162
(6~6 3/8)

NC38
3 1/2 REG

38
(1 1/2)

127
(5)

775
(30 1/2)

1143
(45)

1397
(55)

LB127Ⅳ·S

152~162
(6~6 3/8)

NC38

38
(1 1/2)

127
(5)

825
(32 1/2)

-

-

LB140·L

165~/190.5
(6 1/2~7 1/2)

3 1/2 REG

38
(1 1/2)

140
(5 1/2)

775
(30 1/2)

1143
(45)

1397
(55)

LB143Ⅱ·S

165~190.5
(6 1/2~7 1/2)

3 1/2 REG

38
(1 1/2)

143
(5 3/5)

775
(30 1/2)

-

-

LB146·L

190.5~238.2
(7 1/2~9 3/8)

3 1/2 REG

38
(1 1/2)

146
(5 3/4)

775
(30 1/2)

1143
(45)

1397
(55)

LB165·S

190.5~216
(7 1/2~8 1/2)

NC50

57
(2 1/4)

165
(6 1/2)

825
(32 1/2)

-

-

LB168·L

190.5~216
(7 1/2~8 1/2)

4 1/2 REG

57
(2 1/4)

168
(6 3/5)

800
(31 1/2)

1168
(46)

1422
(56)

LB168Ⅲ·S

190.5~216
(7 1/2~8 1/2)

NC50
4 1/2 REG

57
(2 1/4)

168
(6 3/5)

800
(31 1/2)

-

-

LB178·L

219~244.5
(8 5/8~9 5/8)

4 1/2 REG

57
(2 1/4)

178
(7)

800
(31 1/2)

1168
(46)

1422
(56)

LB190·L

229~273
(9~10 3/4)

4 1/2 REG

57
(2 1/4)

190
(7 1/2)

838
(33)

1168
(46)

1422
(56)

LB197·L

235~279.5
(9 1/4~11)

5 1/2 REG

70
(2 3/4)

197
(7 3/4)

838
(33)

1168
(46)

1422
(56)

LB200·L

241.3~349.3
(9 1/2~13 3/4)

NC46
4 1/2 REG

57
(2 1/4)

200
(7 7/8)

838
(33)

1168
(46)

1422
(46)

LB203Ⅱ·S

241.3~349.3
(9 1/2~13 3/4)

4 1/2 REG

70
(2 3/4)

203
(8)

838
(33)

-

-

LB219·L

244.5~295
(9 3/5~11 3/5)

6 5/8 REG

89
(3 1/2)

219
(8 3/5)

838
(33)

1219
(48)

1473
(58)

LB229·L

254~305
(10~12)

6 5/8 REG

70
(2 3/4)

229
(9)

838
(33)

1219
(48)

1473
(58)

LB244·S

292~330
(11 1/2~13)

7 5/8 REG

89
(3 1/2)

244
(9 3/5)

900
(35 2/5)

-

-

LB245·L

292~330
(11 1/2~13)

6 5/8 REG

89
(3 1/2)

245
(9 13/20)

838
(33)

1219
(48)

1473
(58)

LB280·L

327~375
(12 7/8~14 3/4)

7 5/8 REG

89
(3 1/2)

280
(11)

914
(36)

1270
(50)

1524
(60)

LB286·L

327~375
(12 7/8~14 3/4)

7 5/8 REG

89
(3 1/2)

286
(11 1/4)

914
(36)

1270
(50)

1524
(60)

LB304·L

355.6~365.1
(14~14 3/8)

6 5/8 REG

89
(3 1/2)

304
(12)

914
(36)

1270
(50)

1524
(60)

LB311Ⅱ·L

355.6~365.1
(14~14 3/8)

7 5/8 REG

76
(3)

311
(12 1/4)

800
(31 1/2)

-

-

LB327·L

375~444.5
(14 3/4~17 1/2)

6 5/8 REG

71.4
(2 4/5)

327
(12 7/8)

1014
(40)

1268
(50)

1522
(60)

LB340·L

386~456
(15 1/5~18)

7 5/8 REG

102
(4)

340
(13 3/8)

1014
(40)

1268
(50)

1522
(60)

LB420·S

447.7~469.9
(17 3/5~18 1/2)

7 5/8 REG

71.4
(2 4/5)

420
(16 1/2)

950
(37 2/5)

-

-