ଜଳ ଏବଂ ତେଲ କୂଅ ଖନନ ପାଇଁ 5 ଟି ବ୍ଲେଡ୍ ଷ୍ଟିଲ୍ ବଡି Pdc ବିଟ୍ ସହିତ 12 1/4 ଇଞ୍ଚ |

ଆକାର |

(ଇଞ୍ଚ)

ଆକାର |

(mm)

StdAPI ସୂତ୍ର

ଆନୁମାନିକ ଓଜନ |

(କେଜି)

2-3 / 8

60

ଅଣ- std

1.3

2-1 / 2

63.5

ଅଣ- std

1.5

3

76

ଅଣ- std

2

3-1 / 2

89

ଅଣ- std

3.5। 3.5

3-7 / 8

98.4

2-3 / 8 "

5

4

102

2-3 / 8 "

5.5

4-1 / 4

108

2-3 / 8 "

6.5

4-5 / 8

117.5

2-7 / 8 "

8

5-1 / 4

133

2-7 / 8 "

11

5-5 / 8

142.9

3-1 / 2 "

13

5-7 / 8

149.2

3-1 / 2 "

14

6

152

3-1 / 2 "

17

6-1 / 8

155.6

3-1 / 2 "

18

6-1 / 4

159.3

3-1 / 2 "

20

6-1 / 2

165

3-1 / 2 "

22

7-1 / 2

190.5

4-1 / 2 "

31

7-5 / 8

193.7

4-1 / 2 "

32

7-7 / 8

200

4-1 / 2 "

35

8-1 / 2

215.9

4-1 / 2 "

42

8-5 / 8

219

4-1 / 2 "

44

8-3 / 4

222.3

4-1 / 2 "

45

9-1 / 2

241.3

6-5 / 8 "

60

9-5 / 8

244.5

6-5 / 8 "

65

9-3 / 4

247.7

6-5 / 8 "

70

9-7 / 8

250.8

6-5 / 8 "

75

10-5 / 8

270

6-5 / 8 "

82

11-5 / 8

295

6-5 / 8 "

90

12-1 / 4

311.2

6-5 / 8 "

98

13-5 / 8

346.1

6-5 / 8 "

134

15-1 / 2

394

6-5 / 8 "

190

16

406.4

6-5 / 8 "

200

17-1 / 2

444.5

7-5 / 8 "

251

20

508

7-5 / 8 "

300

24

610

7-5 / 8 "

600

26

660.4

7-5 / 8 "

700