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Workover fishing tool
Impression Block
- Type:Workover fishing tool
- CAS No:
- Qty in 20' FCL:
- Min. Order:
- Packaging:
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Specification
Thread Connection
I.D. of lead die
Length(mm)
Total length
O.D.
Thread Mode(in)
270
203
6 5/8REG
40
150
450
225
165
4 1/2IF
40
130
400
195
159
4IF
30
120
350
170
121
3 1/2IF
30
120
300
120
108
2 7/8IF
20
100
300
100
89
2 1/2ZG
20
100
250
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Impression Block is am effective tool used to determine dimensions, configuration, and location of the top end for a fish in the hole.
Construction
Impression Blocks are manufactured with a high strength alloy steel body and a soft lead insert at the lower end. All impression blocks are provided with a watercourse for flushing the top of the fish before lowering the tool against it . Impression blocks without a watercourse can be furnished upon request.
Operation
Make up the impression block to the bottom of the fishing string and run into the hole. Do not rotate. Slowly lower the impression block to the point of contact with the fish. Apply weight to the impression block and lift it from the hole.
When ordering, please specify:
l Complete assembly or part number
l Top connection
l Lead O.D.
