The equipment is designed for tying the upper ends of adjacent casing strings protruding above the wellhead to seal the annular space between them in climate conditions from -60 °С to +121 °С. Service environment – oil, gas, gas condensate with mechanical impurities up to 25 mg/l, formation water up to 80%.
- Casing head operation – manual
- Meets technical requirements API 6A
- Nominal size, mm (in): 280-426 (11-16 3/4)
- Work pressure, MPa (PSI): 35-105 (5000-15000)
- Service environment: oil, gas, solution, water
- Work temperature, °С: from -60 to +121
- Material class: АА, ВВ, СС, DD, ЕЕ, FF
- Technical performance: PSL1 – PSL4
- Resistance class: PR1, PR2
Specifications
| Item | Work pressure | Nominal size | Nominal diameter 1 of surface casing | Nominal diameter 2 of surface casing | Nominal diameter 3 of surface casing | Nominal diameter of casing strings | ||||||
| MPa | PSI | mm | in | mm | in | mm | in | mm | in | mm | in | |
| 3CH | 35
70
105 |
5000
10000
15000 |
280
350
426 |
11
13 5/8
16 3/4 |
139,7
146,1
168,3
177,7 |
5 1/2
5 3/4
6 5/8
7 |
219,1
244,5
273,1
298,4
323,9 |
8 5/8
9 5/8
10 3/4
11 3/4
12 3/4 |
298,4
323,9 |
11 3/4
12 3/4 |
426
508 |
163/4
20 |