Impression Block

The Impression Blocks, consist of solid lead insert in the lower

end of a steel housing, are used in fishing operations. They are

designed to enable the operator to determine the configuration

of the top of the fish and to locate its position in the wellbore.

Its use enables the operator to more precisely assess the fishing

conditions and select the proper tool or tools needed to

successfully complete the fishing operation.

There are two different impression blocks available:

1. Solid Impression Block

2. Watercourse Impression Block

Specifications

Size O.D Larger than Up Pin Top Assembly Watercourse to and including Connection Weight Size

0 1-5/8 5/8 S.R 5 N/A 1-5/8 1-3/4 S.R 6 N/A 1-3/4 2-1/8 S.R 7 N/A 2-1/8 2-1/4 S.R 7 N/A 2-1/4 2-3/4 S.R 15 N/A 2-3/4 3-1/2 S.R 23 N/A 3-3/4 3-7/8 S.R 36 N/A 3-7/8 4-1/8 2-3/8 Reg 26 N/A 4-1/8 4-1/2 2-7/8 Reg 28 N/A 4-1/2 4-3/4 3-1/2 Reg 57 4-3/4 5-1/2 3-1/2 Reg 81 5-1/2 5-3/4 3-1/2 Reg 83 5-3/4 8 4-1/2 Reg 144 8 8-1/2 4-1/2 Reg 144 8-1/2 9-1/4 4-1/2 Reg 160 9-1/4 10 6-5/8 Reg 10 11 6-5/8 Reg 250 1-1/2 11 11-1/2 6-5/8 Reg 332 1-1/2 11-1/2 11-3/4 6-5/8 Reg 312 1-1/2 11-3/4 12 6-5/8 Reg 285 1-1/2 12 13-1/2 6-5/8 Reg 342 1-1/2 13-1/4 14-1/2 6-5/8 Reg 14-1/2 15-3/4 6-5/8 Reg 2 15-3/4 17 7-5/8 Reg 476 2 17 17-1/2 7-5/8 Reg 637

Fishing and Milling Services