Impressions Block
Application
1).To find the correct depth of fish.
2).To know the shape of fish top.
3).To check the deformed shape of internal diameter of casing.
The Impression blocks are available in flat-bottom type and conical type.
Specifications for flat-bottom impression block
|
Specification |
Thread Connection |
I.D.of lead die |
Length(mm) |
Total length |
|
|
O.D. |
Thread type(in) |
||||
|
270 |
203 |
6 5/8REG |
40 |
150 |
450 |
|
225 |
165 |
4 1/2IF |
40 |
130 |
400 |
|
195 |
159 |
4 IF |
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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