Drilling Single Ram Bop Shaffer Type Oil Rig Blowout Preventer
The ram BOP is designed to seal the space between the casing and wellhead. When closed, it allows for operations like circulating drilling fluid, releasing pressure, and killing the well through the spool located beneath the BOP or pipelines connected to the side outlet of the BOP body. In case of an emergency, the ram BOP is capable of shearing the drilling tool in the hole to seal it off. The variable bore rams of the ram BOP can seal the annular space between the casing and pipes of different sizes within a specific range.
Technical parameter of Single Ram Bop
| Item | Single Ram BOP with booster | Double Ram BOP with booster | ||
| Size | FZ35-70 | 2FZ35-70 | ||
| Top connection type | Studded | Flanged | Studded | Flanged |
| Bottom connection type | Flanged | Flanged | Flanged | Flanged |
| Weight (Kg) |
6898 (14,320 lb) |
7433
|
12122 (26,555 lb) |
12657 (27,800 lb) |
| Height (mm) | 960 | 1250 | 1491 | 1775 |
| Bore | 346.1mm (13 5/8″) | |||
| Hydrostatic pressure testing pressure | 105MPa (15,000psi) | |||
| Rated working pressure | 70MPa (10,000psi) | |||
| Hydraulic control system strength working pressure | 31.5MPa(4,500psi) | |||
| Hydraulic control system rated working pressure | 21MPa(3,000psi) | |||
| Recommended hydraulic controlled operating pressure | 8.4～10.5MPa(1,200～1,500psi) | |||
| Hydraulic Cylinder Bore | 342.9mm(13 1/2″) | |||
| Booster Bore | 250mm(9 7/8″) | |||
| Open one set of ram oil volume | 29.5 L | |||
| Close one set of ram oil volume | 33.5 L | |||
| Close one set of ram oil volume (Including boosters) | 54L | |||
| Connection joint of hose | NPT 1 | |||
| Size of outlet | 4 1/16″-10,000psi according to the contract | |||
| Temperature grade | T20(-29～121℃) according to the contract | |||
| Close Ratio λ | 1:7.4 | |||
| Close Ratio λ (with Booster) | 1:11.4 | |||
|
Note: BOP design and manufacture are all meet API Spec 16A. BOP provided can be used for H2S service and also meet NACE MR-01-75. |
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List 5 Ram size for fitting
| Ram size for fitting | The max pipe ram is 10 3/4″,5″～5 1/2″VBR ,2 7/8″～5″VBR,3 1/2″～5 ″VBR,5″～7″VBR,3 1/2″double hole, 2 7/8″double hole,2 3/8″double hole,shear ram |
