18 3/4″ Dual Ram Bop Wellhead Equipment Blowout Preventer
Introduction of Dual Ram Bop
The Dual Ram Bop is designed to seal off the annulus between the casing and the wellhead. In case of closing, such operations as circulating drilling fluid, releasing pressure, and killing the well can be performed using the spool beneath the BOP or pipelines connected to the side outlet of the BOP body. Under the emergent condition, the Dual Ram Bop can shear the drilling tool in the hole to seal off the hole. The ram BOP with variable bore rams can seal off the annular space between the casing and the pipes of various sizes within a certain range.
Dual Ram Bop Paremeter
| Model |
Gals to Open (1 set) |
Gals to Close (1 set) |
Closing Ratio | Assembly Dimension (in) | Approx Weight(lb) | ||||||
| Length (L) | Width (W) | Height (H) | |||||||||
| Flg×Flg | Std×Std | Flg×Std | Flg×Flg | Std×Std | Flg×Std | ||||||
| 4 1/16″-20,000psi(Single RS-FS) | 1.10 | 1.13 | 10.1 | 70.71 | 26.97 | 33.27 | 18.11 | 23.82 | 3491 | 3147 | 3319 |
| 4 1/16″-20,000psi(Double RS-FS) | 1.10 | 1.13 | 10.1 | 70.71 | 26.97 | 46.30 | 31.14 | 36.85 | 5742 | 5398 | 5570 |
| 7 1/16″-20,000psi(Single RS-FS) | 7.05 | 7.26 | 13.7 | 112.05 | 38.27 | 48.03 | 24.02 | 35.83 | 10891 | 8951 | 9921 |
| 7 1/16″-20,000psi(Double RS-FS) | 7.05 | 7.26 | 13.7 | 112.05 | 38.27 | 70.87 | 47.24 | 59.06 | 19826 | 17886 | 18812 |
| 11″-20,000psi(Single RS-FS) | 42.90 | 44.8 | 13.2 | 137.40 | 47.87 | 62.60 | 32.68 | 47.64 | 24030 | 19335 | 21682 |
| 11″-20,000psi(Double RS-FS) | 42.9 | 44.8 | 13.2 | 137.40 | 47.87 | 90.55 | 60.63 | 75.59 | 41987 | 37291 | 39639 |
| 18 3/4″-20,000psi(Double RS-FS) | 122 | 133 | 10.6 | 183.46 | 66.69 | / | / | 94.13 | / | / | 87083 |
Dual Ram Bop Feature
1) Shape Generally, the BOP body is similar to a square, in the middle there is a vertical bore through which the pipes
can pass and the ram cavities in which the ram moves in the horizontal direction.
2)Connection types The three connection types are studded, flange, and clamped top and bottom connections. The sizes of flanges, bolts, clamps, and ring grooves all conform to API standards.
