UM Convertible-Bonnet Ram-Type BOP | Schlumberger

UM

Convertible-bonnet ram-type BOP

The UM convertible-bonnet ram-type BOP is a lightweight BOP designed for easy maintenance and long life. It complements our U BOP and includes bonnets that can be installed on any comparably sized U BOP. Its design incorporates a single bonnet that can be converted between shear and pipe modes, eliminating the need for a separate shearing bonnet.

Optional bonnet seal carriers eliminate high makeup torque on bonnet studs. The UM BOP allows seal replacement with the bonnet in ram-change position without having to remove the bonnet. Wedge lock operating systems are interlocked using sequence caps to ensure that the lock is retracted before applying pressure to open the BOP.

UM Ram-Type BOP 3D Model

Specifications  
Application
Offshore (surface) and onshore
Bore sizes and working pressures
7 1/16, 11, and 13 5/8 in: 3,000 to 15,000 psi
16 3/4 in: 3,000 to 10,000 psi
20 3/4 in: 3,000 psi
21 1/4 in: 2,000, 5,000, and 10,000 psi
26 3/4 in: 3,000 psi
Body styles
Single, double, triple, or quad
Rams
Pressure-energized
Lock types
Standard: Manual
Optional: Hydraulic
Bonnets
Hydraulically opening
Fasteners
Bonnet studs
Available bonnets
Large-bore and FXT bonnets
Maintenance
Field-replaceable bonnet cylinders, pistons, and seals
Manufacturing
NACE standards and monogrammability to API Spec 16A
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