|
MPa |
14 |
21 |
35 |
70 |
105 |
|
psi |
2000 |
3000 |
5000 |
10000 |
15000 |
|
mm |
140 |
146 |
168 |
178 |
193 |
219 |
245 |
273 |
299 |
324 |
340 |
426 |
508 |
|
inches |
5 1/2 |
– |
6 5/8 |
7 |
7 5/8 |
8 5/8 |
9 5/8 |
10 3/4 |
11 3/4 |
– |
13 5/8 |
– |
20 |
Basic advantages:
- installation of the lower housing is possible on a thread, in a wedge suspension or welding
- in column heads standard threads are avaliable according to API, according to GOST, as well as according to the technical specifications of pipe manufacturers
- it is possible to use various types of casing hangers
- it is possible to use various types of annulus seals
- tools and devices for drilling operations are avaliable
- level of technical requirements for manufacturing according to GOST/Safety level according to API: UTT 1, UTT 2, UTT 3, UTT 4/ PSL1,SL2,SL3,SL3G, PSL4
- level of technical requirements for performance characteristics according to GOST/API: UTR1, UTR2/ PR1, PR2
- Climatic version according to GOST: U, HL
- API temperature classes: K, L, P, R, S, T, U
