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Fullbore DST string
Product Parameters
Product Parameters
| Fullbore DST | ||
| No | Item | Description |
| 1 | down hole tester valve | annulus operated, capable of holding up to 15000 psi pressure, ability to be hold open |
| 2 | shear out circulatin valve | 4 bpm in either direction circulation |
| 3 | multiple opening circulating valve | 4 bpm in either direction, operated by string pressure and its cycling starts after setting the packer |
| 4 | tubing pressure testing valve | capable of holding up to 15000 psi from both side ( above and down ) |
| 5 | perforated tailpipe | suitable for continues exposure to predicted reservoir fluids and temperatures (350 f ) for up to 30 days |
| 6 | crossovers | |
| 7 | safety circulating valve | operated by annulus pressure which ruptures a shear disc. It shall cut until 7/32" wire line |
| 8 | hydraulic jar | should be capable of delivering minimum of 50.000 lbs upward jarring force |
| 9 | safety joint | run in conjunction with the retrievable packer |
| 10 | slip joints | The number of joints shall be sufficient to allow aminimum 15 ft travel |
| 11 | drain valves | to drain pressure/fluids |
| 12 | retrievable packer | mechanical set retrievable packer for use inside 13 3/8 . 9 5/8 and 7 casing or liner packers to be automatic j slot type in design and actived by string weight packers to be 12000 psi differential ressure rated across elements and to incorporate integral by pass facility |
