Ram Bop is a key part of well-control equipment. lt’s used for controlling wellhead pressure during well drilling, workovering and testing, etc., effectively
preventing well blowout and realizing civilized and safe construction. It can be used for the following:
With proper pipe ram sealing the annular space between casing and drilling string when there is pipe in the hole.
With blind ram, completely sealing wellhead when there is no pipe in the hole.
When in emergent condition, the shear ram will cut off pipe in the well and close wellhead.
When the well head is closed, with killing manifold and choke manifold connected to the spool and the outlet of the body doing mud circulating.
choking and releasing, well killing and well cleaning, etc..
With killing manifold and choke manifold, effectively controlling bottom hole pressure to achieve balance of bottom hole pressure.
TECHNICAL PARAMETER OF RAM BOP
| List 4 TECHNICAL PARAMETER OF RAM BOP | ||||||
|---|---|---|---|---|---|---|
| ltem | Single Ram BOP | Double Ram BOP | ||||
| Size | 135/8”-10000ps | 135/8”-10000psi | ||||
| Top connection type | Studded | Flanged | Studded | Studded | Flanged | |
| Bottom connection type | Flanged | Flanged | Flange | Studded | Flanged | |
| Weight (Kg) | 6445 | 7070 | 11950 | 11270 | 12510 | |
| Height (mm) | 960 | 1250 | 1485 | 1205 | 1775 | |
| Bore | 346mm(135/8”) | |||||
| 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 controlled pressure |
hydraulic operating |
8.4～10.5MPa(1,200～1,500psi) | ||||
| Open one set of ram oil volume |
30 L | |||||
| Close one set of ram oil volume |
33 L | |||||
| Connection joint of hose | NPT 1 | |||||
| Size of outlet | 41/16”-10,000ps | |||||
| Temperature grade | T20(-29～121℃) | |||||
| Ram size for fitting | C.S.O.,23/8”,27/8”,31/2”,41/2”,5”, 51/2”, 65/8”,7”,75/8”,95/8”,103/4” 5”～51/2″variable,27/8″～51″variable shear ram |
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| 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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