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Bottom Pack-off Cross Over Seal |
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The standard bottom pack - off is type 'PBP1'The bottom pack - off is installed in the lower flange of the casing head spool and tubing head spool to prevent the lower flange from being exposed to high pressure. The bottom pack-off type 'PBP1' seals the annulus pressure by injecting packing. The bottom pack - off PBP - 2 is designed to give a positive annular seal with pressure energized oversize O - Rings. For services at working pressures above 5,000 psi, the 'PP' seal is used. When the bottom pack - off is used, the casing should be cut 90 mm from the top flange surface of the connecting spool. |
| Nominal Flange Size |
Casing Pipe | ||||||||||
| 4-1/2 | 5 | 5-1/2 | 6-5/8 | 7 | 7-5/8 | 8-5/8 | 9-5/8 | 10-3/4 | 11-3/4 | 13-3/8 | |
| 9 | O | O | O | ||||||||
| 11 | O | O | O | O | O | * | |||||
| 13 5/8 | O | O | O | O | O | O | |||||
| 16 3/4 | O | O | O | ||||||||
| 20-3/4 & 21-1/4 | O | O | O | ||||||||
| Service & Completion Tool Products 3084 South Interstate 35 W, Burleson, Texas 76028 Office: (817) 790-6608 - Fax: (817) 783-8081 sales@americancompletiontools.com |
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Flow Line Products 9223 Solon Rd., Houston, Texas 77064 Office: (281) 894-5213 - Fax: (281) 894-5217 sales2@americancompletiontools.com |