Series TFZ 35-70A casing head
Brief introduction:
Based on all kinds of drilling and oil-production casing head used in the oilfields at home and abroad ,Series TFZ35- 70A casing head, considering of the actuarial conditions of drilling process flow，is a new patent product ,which gathers all of the advantages of casing heads , simplify installation process and furthers to raise the safety and reliability.
Main technology parameters:
Casing procedure:20”x 133/8”x95/g” x7”or 5'/2”;
Connection :
Of the top: 13 3/8” x 5000psi (10000PSI) flange with gasket ring BX 160 (BX159);
Of the bottom: 13 3/8” CSG casing thread;
Flange of side outlet: 35 & 65 R27 (70 & 65 BX153);
Supporting load: 5000KN;
Interchangeable hanger: 4”. 4^1/2” . 5^1/2” 、7”&9^5/8”;
Working pressure: 35MPa (70MPa)
Suitable depth of well: 5000~ 7000m;
Working temp: PU level;
Working medium: Oil, gas and mud;
Vertical bore minimum: 31 6mm;
Rated material class: DD
TFZ35-70A series casing head:
| Item | Component | Qty | Material | Remark |
| 1 | Packing | 25 | PTFE | |
| 2 | Packing Washer | 10 | 410 | |
| 3 | Lock Screw | 5 | 4130 | |
| 4 | Packing Nut | 5 | 5140 | |
| 5 | 7”Casing Hanger | 1 | | |
| 6 | 9^5/8” Casing Hanger | 1 | | |
| 7 | Casing Head Body | 1 | 4130 | |
Matching TFZ35-70A series casing head hanger: | Item | Component | Qty | Material | Remark |
| 1 | lock sleeve | 1 | 4130 | |
| 2 | Bolt | 4 | | Standard |
| 3 | Fitting | 4 | 4130 | |
| 4 | Inside Sliding Bush | 1 | 4130 | |
| 5 | Inside Seal Ring | 1 | NBR | |
| 6 | 0- -Ring | 1 | NBR | |
| 7 | Outside Seal Ring | 1 | NBR | |
| 8 | Outside Sliding Bush | 1 | 4130 | |
| 9 | Retaining Ring | 1 | 4130 | |
| 10 | 0- Ring | 2 | NBR | |
| 11 | Hanger Housing | 1 | 4130 |
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