Liner top sealing devices
Liner top sealing device UGRKh
Designed to protect the parent casing string from excess pressure during hydraulic fracturing. Used in tubing strings per GOST 633-80 of nominal Ø 89, 114 mm.
Design features
- Available with one-piece rubber or stacked seal assembly
- Lands in the setting funnel of a liner hanger or a top auxiliary packer (PDV)
- Maximum internal excess pressure 70 MPa
- Seal unit replacement for tool reuse
Additional options
- Connection thread machined to customer requirements
Sizes and technical characteristics
| Item | Liner OD, mm | Tubing OD, mm | Max outer Ø, mm | Drift Ø, mm | Length, mm | Weight, kg |
|---|---|---|---|---|---|---|
| UGRKh102/122-76 | 102 | 89 | 122 | 76 | 1980 | 46.4 |
| UGRKh102/117-70 | 102 | 89 | 117 | 70 | 1980 | 52 |
| UGRKh123/141-76 | 114 | 89 | 141 | 76 | 1875 | 59 |
| UGRKh123/141-96 | 114 | 114 | 141 | 96 | 1860 | 55 |
| UGRKh1.123/141-99.Kh | 114 | 114 | 141 | 99 | 1897 | 67 |
| UGRKh136/152-76.V | 127 | 89 | 152 | 76 | 2040 | 76 |
| UGRKh136/152-99.V | 127 | 114 | 152 | 99 | 2026 | 72 |
| UGRKh.102/122-85.P | 102 | 102 | 122.5 | 85 | 1986 | 49.2 |
Kh — chrome-plated surface of the seal-unit metal sleeve.
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