Table API Casing Data Showing Bit Sizes and Clearances

Bit Sizes and

Casing Specifications Diametrical Clearance

Casing

Casing

Wt per ft

Clearance

Size

Coupling

with

ID

OD,

Día. OD,

Couplings,

of Casing,

Bit Size,

Thou

Nearest

in.

in.

lb

in.

in.

sandths

64th

4'/z

5.000

9.50

4.090

3%

0.215

7/32

4'/2

5.000

11.60

4.000

3%

0.125

lA

4Vi

5.000

13.50

3.920

3%

0.170

"/M

5

5.563

11.50

4.560

4'A

0.310

y.6

5

5.563

13.00

4,494

4'A

0.244

14

5

5.563

15.00

4,408

4'A

0.158

%2

5

5.563

18.00

4,276

4:A

0,151

%2

5'/2

6,050

13.00

5.044

4%

0.294

1 y'64

S'/2

6.050

14.00

5.012

4%

0,262

i7/64

5'Á

6.050

15.50

4,950

43A

0,200

5>/2

6.050

17.00

4.892

43A

0.142

%4

5</2

6.050

20.00

4.778

45A

0.153

S/32

S'/2

6,050

23.00

4.670

4Vi

0.170

n/64

6

6,625

15.00

5.524

5%

0.149

%2

6

6,625

18.00

5.424

0.299

>%4

6

6.625

20.00

5.352

5'/8

0.227

•VM

6

6.625

23.00

5.240

5'/a

0.115

%4

6%

7.390

17,00

6.135

6

0.135

%4

6Vs

7.390

20.00

6,049

57/M

0.174

1!/64

6%

7.390

24.00

5.921

5%

0.296

">/64

6%

7.390

28.00

5.791

5%

0.166

ll/64

6%

7.390

32.00

5.675

5%

0.300

>%4

7

7.656

17.00

6.538

6'/4

0.288

V>2

. 7

7.656

20.00

6.456

m

0.206

l3/64

7

7.656

23.00

6.366

6 'A

0.116

yft4

7

7.656

26.00

6.276

6 VK

0.151

%2

7

7.656

29.00

6.184

6

0.184

7

7,656

32.00

6.094

6

0.094

%2

7

7.656

35.00

6.004

5%

0.129

v&

7

7,656

38.00

5,920

5%

0.170

' '/64

7%

8.500

20.00

7.125

6%

0.375

%

7-Vs

8.500

24.00

7.025

6Va

0.275

%2

7%

8.500

26.40

6.969

6%

0.219

7/l2

1%

8.500

29.70

6.875

63/4

0.125

Ys

7%

8.500

33.70

6.765

6SA

0.140

%4

Table 7-3 API Casing Data, Showing Bit Sizes and Clearances—cont'd

Bit Sizes and

Casing Specifications Diametrical Clearance

Table 7-3 API Casing Data, Showing Bit Sizes and Clearances—cont'd

Casing Specifications Diametrical Clearance

Casing

Casing

Wt per ft

Clearance

Size

Coupling

with

ID

OD,

Dia. OD,

Couplings,

of Casing,

Bit Size,

Thou

Nearest

in.

in.

lb

in.

in.

sandths

64 th

7%

8.500

39.00

6.625

6'A

0.375

%

m

9.625

24.00

8.097

7Vs

0.222

%2

8%

9.625

28.00

8.017

77/s

0.142

%4

s%

9.625

32.00

7.921

7%

0.296

>%*

m

9.625

36.00

7.825

7%

0.200

'%4

8%

9.625

40.00

7.725

7%

0.100

%2

8s/s

9.625

44.00

7.625

7%

0.250

'A

8-YH

9.625

49.00

7.511

7%

0.136

%4

95/B

10.625

29.30

9.063

8%

0.313

%6

9Vs

10.625

32.30

9.001

8%

0.251

'A

9%

10.625

36.00

8.921

8%

0.171

u/M

9%

10.625

40.00

8.835

8%

0.210

>YM

9%

10,625

43.50

8.755

8%

0.130

1/x

9%

10,625

47.00

8.681

8%

0.181

Vl6

9%

10.625

53.50

8,535

8%

0.160

%2

10%

¡1.750

32,75

10.192

9%

0.317

10%

11.750

40.50

10.050

9%

0.175

1 '/%

10%

11.750

45.50

9.950

9%

0.200

'%4

10%

11.750

51.00

9.850

9%

0.225

%2

10%

11.750

55.50

9.760

9%

0.135

%4

11%

12.750

38.00

11.150

11

0.150

-%2

11%

12.750

42.00

11.084

10%

0.334

2l/„4

11%

12.750

47.00

11.000

10%

0.250

>A

11%

12.750

54.00

10,880

¡0%

0.255

'A

11%

12,750

60.00

10,772

10%

0.147

%4

13%

14.375

48,00

12.715

12 Vi

0.465

>%2

13%

14.375

54.50

12.615

12'/4

0.365

2%4

13%

14.375

61.00

12.515

¡2'A

0.265

13%

14.375

68.00

12.415

12'A

0.165

"/M

13%

14.375

72.00

12.347

12

0.347

16

17.000

55.00

15.375

15

0.375

%

16

17.000

65.00

15.250

15

0.250

>/4

16

¡7.000

75.00

15,125

14 m

0.375

%

16

¡7.000

84.00

15.010

14%

0.260

,7/64

20

21.000

94.00

19.124

171/2

1,624

Courtesy API.

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