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Casing Spools C-22/C-29
C-22 Casing Spools are designed with a straightbore bowl that prevents damage to sealing areas from drilling tools and prevents test-plug and bowlprotector wedging problems under pressure. This straight-bore design also reduces maintenance costs and permits suspension of heavy casing loads. C-22 Casing Spools normally are furnished with studded outlets, but optional threaded outlets are available upon request. Bottom preparation can include PE seals or X-bushing secondary seals. HPE seals for high-performance frac wells are available upon request. C-22 Casing Spools allow interchangeability between C-22 and C-21 Casing Hangers.
The C-29 Casing Spool uses a straight bore based on the same reliable design as the C-22 except the bowl is 2 inches deeper, permiting the acceptance of the minimal-deflection C-29 Casing Hanger. This allows extreme-load casing-hanging capacity compared with the C-22 profile. C-29 Casing Spools normally are furnished with studded outlets, and threaded outlets are available upon request. Bottom preparation can include PE seal or X-bushing secondary seals. HPE seals for high-performance frac wells are available upon request..
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C-22 Casing Spool Specifications (API-6A)
Top Flange Size (inches) |
Working Pressure (psi) |
Bottom Flange Size (inches) |
Working Pressure (psi) |
11" |
2,000 |
11" |
2,000 |
11" |
2,000 |
13-5/8" |
3,000 |
11" |
3,000 |
11" |
3,000 |
11" |
3,000 |
11" |
2,000 |
11" |
3,000 |
13-5/8" |
2,000 |
11" |
3,000 |
13-5/8" |
3,000 |
11" |
3,000 |
16-3/4" |
2,000 |
11" |
3,000 |
16-3/4" |
3,000 |
11" |
5,000 |
13-5/8" |
3,000 |
11" |
5,000 |
16-3/4" |
3,000 |
11" |
10,000 |
13-5/8" |
5,000 |
13-5/8" |
3,000 |
16-3/4" |
3,000 |
13-5/8" |
3,000 |
21-1/4" |
2,000 |
13-5/8" |
5,000 |
20-3/4" |
3,000 |
C-29 Casing Spool Specifications (API-6A)
Top Flange Size (inches) |
Working Pressure (psi) |
Bottom Flange Size (inches) |
Working Pressure (psi) |
11" |
3,000 |
11" |
3,000 |
11" |
3,000 |
13-5/8" |
3,000 |
11" |
3,000 |
16-3/4" |
3,000 |
11" |
5,000 |
11" |
3,000 |
11" |
5,000 |
13-5/8" |
3,000 |
11" |
5,000 |
13-5/8" |
5,000 |
11" |
5,000 |
16-3/4" |
3,000 |
11" |
5,000 |
16-3/4" |
5,000 |
11" |
10,000 |
11" |
10,000 |
11" |
10,000 |
13-5/8" |
5,000 |
13-5/8" |
3,000 |
20-3/4" |
3,000 |
13-5/8" |
5,000 |
20-3/4" |
3,000 |