packing element for Annular BOP FH35-35Diverter packing element series
The packing element for Annular BOP FH35-35 is a special high performance product for preventing the blowout. The packing element is combined by the main body which is made up of the independent innovation rubber based polymer alloy material and the high strength metal frame, which conforms to the USA 16A, SATM D412, D624, D2240 and D471 standard. It is suitable for the drilling work on the oil field, which shares a high cost performance comparing to the other same type packing elements. And the repair seal kits are equipped.
Diverter packing element series packing element specification
| working pressure MPa(psi) | Bore mm(in) | |||||||||
| 179(7 1/16”) | 228(9”) | 279(11”) | 346(13 5/8”) | 425(16 3/4”) | 476(18 3/4”) | 527(20 3/4”) | 540(21 1/4”) | 680(26 3/4”) | 750(29 1/2”) | |
| 70(10000) | √ | √ | √ | |||||||
| 35(5000) | √ | √ | √ | √ | √ | |||||
| 21(3000) | √ | √ | √ | |||||||
| 14(2000) | √ | |||||||||
| 3.5(500) | √ | |||||||||
Physics performance of rubber
| Iitem | Inspection item | Technical specification ≤35MPa | Technical specification ≥70MPa |
| 1 | toughness A | 75±5 | 85±5 |
| 2 | 300% tensile toughness Mpa | ≥10 | ≥10 |
| 3 | tensile toughness Mpa | ≥19.6 | ≥19.6 |
| 4 | elongation rate % | ≥250 | ≥200 |
| 5 | permanent distortion % | ≤25 | ≤20 |
| 6 | aging rate120℃×24h | ≥0.6 | ≥0.6 |
| 7 | brittleness temperature℃ | ≤-18 | ≤-18 |
| 8 | brittleness temperature KN/m | ≥40 | ≥40 |
| 9 | brittleness temperature Mpa | ≥4 | ≥4 |
High performance rubber physics specification(HNBR material, Cameron refer to Cameron type material specification)
| Iitem | Inspection item | Technical specification |
| 1 | toughness A | 75±5 |
| 2 | 300% tensile toughness Mpa | ≥10 |
| 3 | tensile toughness Mpa | ≥18 |
| 4 | elongation rate % | ≥400 |
| 5 | permanent distortion % | ≤30 |
| 6 | aging rate120℃×24h | ≥0.6 |
| 7 | brittleness temperature℃ | ≤-18 |
| 8 | brittleness temperature KN/m | ≥40 |
| 9 | brittleness temperature Mpa | ≥4 |
