Concave junk mill (CJM)

The concave junk mill is used for drilling out cement and sand plugs, external casing attachments, casings, and milling junk within the internal cross-section of oil, gas, and geological exploration wells during intervention and repair operations.

Characteristics:

Designation

CJM-70

CJM-85

CJM-91

CJM-92

CJM-95

CJM-102

CJM-104

CJM-110

CJM-112

CJM-114

CJM-115

CJM-116

CJM-117

CJM-118

CJM-119

CJM-120

CJM-121

CJM-122

CJM-124

CJM-125

CJM-136

CJM-140

CJM-142

CJM-150

CJM-152

CJM-155

CJM-156

CJM-190

CJM-210

CJM-260

CJM-270

CJM-375

External diameter, mm

70

85

91

92

95

102

104

110

112

114

115

116

117

118

119

120

121

122

124

125

127

136

140

142

146

150

152

155

156

190

210

260

270

375

Length, mm

220

220

220

220

220

250

250

250

250

250

250

250

250

250

250

250

250

250

250

250

250

250

270

270

270

270

280

280

280

300

340

400

400

435

Number of watercourses

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

4

4

4

4

5

5

5

5

5

5

5

5

4

6

4

4

6

Thickness of the working surface, mm

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

25

25

25

25

Rotation frequency,no more, rpm

175

175

175

175

175

175

175

175

175

175

150

150

150

150

150

150

150

150

150

125

125

125

125

125

125

125

125

125

125

125

125

125

125

125

Axial load,kN

10...20

10...20

10...20

10...20

10...20

10...20

10...20

10...22

10...22

10...22

10...22

10...22

10...22

10...22

10...22

10...22

10...22

22...48

22...48

22...48

22...48

22...48

22...48

22...48

22...48

22...48

22...48

22...48

22...48

22...48

22...48

22...48

22...48

22...48

Thread*

Z-44

Z-65

Z-65

Z-65

Z-65

Z-73

Z-73

Z-76

Z-76

Z-76

Z-86

Z-86

Z-86

Z-86

Z-86

Z-86

Z-86

Z-86

Z-86

Z-86

Z-86

Z-86

Z-86

Z-86

Z-86

Z-88

Z-102

Z-102

Z-102

Z-117

Z-133

Z-133

Z-133

Z-147

Mass, kg

5,1

6,4

8,7

8,8

9,0

10,4

11,6

12,9

13,3

13,6

13,7

14,0

14,2

14,4

14,6

14,8

14,9

15,1

15,2

15,6

15,8

18,4

18,5

18,6

19,3

20,5

22,0

23,0

23,3

79,4

96,7

99,5

103,2

161,0

Documentation:

Том 1 - 24

pdf,38.63 МБ

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