Xi’an Chancemate Petroleum Mechanical Co.,Ltd

Xi’an Chancemate Petroleum Mechanical Co.,Ltd

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mechanical external cutter and mechanical internal cutter
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mechanical external cutter and mechanical internal cutter
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Product Description

mechanical external cutter and mechanical internal cutter

Product pictures of mechanical external cutter and mechanical internal cutter

The mechanical external cutter are automatic spring-fed cutters that provide fast, efficient, external cutting and recovery of long sections of tubing, drill pipe or casing. The spring-fed feature prevents excessive strain from being applied from the rig floor, which could cause the knives to burn or break before the cut is made.

The Body of the mechanical external cutter is designed so that when an upward strain is taken on the cutting string (and the Spring Dog Assembly has engaged a tool joint or collar), the downward travel of the Spring Dog Assembly and the Thrust Washer is limited to compressing the Main Spring and to shearing the Feed Ring Shear Pin. Thereafter the Knives are fed for the cutting operation only by the Main Spring. A Thrust Bearing Assembly assures smooth, low-friction rotation of the cutter.

The Spring Dog is designed to catch under the coupling to actuate the cutter and retain the cut-off section of the pipe. It is effective for use with couplings, collars or squared shoulder tool joints. It is standard and will be furnished unless an alternate optional catcher assembly is specified.

The optional Ratchet Pawl Assembly is used if the pipe being cut has external upset integral tool joints. This assembly may also be used with couplings.

The optional Slip Assembly is used if the pipe to be cut has external flush tool joints. The Slips will grip the pipe at any point in its length to actuate the cutter and retain the cut-off section of pipe.

the mechanical external cutter are available to cut all popular sizes of drill pipe and tubing. Special sizes will be furnished on special order.


Specification of mechanical external cutter

 

 

 

Type

O.D.

(mm)

I.D.

(mm)

O.D. of Cutting Pipe (mm)

Max O.D. of Fish (mm)

 

Connection API

Suitable Well Diameter(in)

WD-J58

58

41

33.4

39.4

2 3/8″TBG

62.0

WD-J98

98

79

60

78

2 3/8″TBG

105.0

WD-J114

114

82

60

79

NC26

120.6

WD-J119

119

98

73

95

NC26

125.4

WD-J143

143

111

52,89

108

NC31

146.2

WD-J149

149

117

60,89

114

NC31

155.6

WD-J154

154

124

60,101

120

NC38

158.8

WD-J194

194

162

89,101,114,127

159

6 5/8″REG

209.5

WD-J206

206

168

101,146

165

6 5/8″REG

219.0

 



The mechanical internal cutter is a mechanical tool to cut casing, tubing, drill pipe in the downhole. In order to avoid cutting coupling, the cutter should keep away from the position of coupling, and if allowed explorer should be equipped to make cutting easy. It not only can cut at any position of the fish during cutting operation independently, but also can connected the releasing spear above it. After cutting is finished the pipe string above cutting position the cutter can be lifted out at the same time. Features:The mechanical internal cutter is simple in structure, safe and reliable in use, convenient operation, high-efficiency performance. The mechanical internal cutter consists of a friction assembly which can set the slip insider tubular after initiation. An indicator signals through pump pressure and stabilizer slip keeps the cutter anchored in the casing, when the cut is completed. The pistons are designed to force the slips to firmly anchor the tool before the knives contacting the casing.

Specification of mechanical internal cutter

 

 

Type

O.D.

(mm)

Connection

API

O.D. of Cutting

Pipe (in)

 

Type

O.D.

(mm)

Connection

API

O.D. of Cutting

Pipe (in)

ND-J60

46

CYZ22Socker rod

2 3/8tubing

ND-J140

112

NC31

5 1/2  casing

ND-J73

57

1.900TBG

2 7/8 tubing

ND-J168

127

NC38

6 5/8  casing

ND-J89

67

2 3/8″TBG

3 1/2 tubing

ND-J168

138

NC38

6 5/8 casing

ND-J102

83

2 3/8″TBG

4tubing

ND-J178

145

3  1/2″REG

7  casing

 

 

 

ND-J114

 

 

 

85

 

 

 

NC26

 

4 1/2tubing

4 1/2casing

4 1/2 Drill pipe 5 Drill pipe

ND-J219

185

5  1/2″FH

8 5/8  casing

ND-J245

200

6  5/8″REG

9 5/8  casing

ND-J298

260

6  5/8″REG

11 3/4  casing

ND-J340

295

6  5/8″REG

13 3/8  casing

 

ND-J127

 

102

 

NC31

5 casing

5 Drill pipe

ND-J406

370

6  5/8″REG

16  casing

ND-J508

475

6  5/8″REG

20  casing

 


My friend, if you have any requests of our mechanical external cutter and mechanical internal cutter, please send your requests to my email: sales@chancematewellcontrol.com, we are 24 hours online to give you the best service

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