One of the most reliable and advanced marine riser systems in today's market is VetcoGray's HMF system. The HMF connection is fully preloaded and ideally designed for deepwater drilling in a harsh environment. The MR - 6E is lightweight, simple to operate and fast to run.

Design Philosophy

Developed through extensive design analysis and test programs of bending, tension, internal pressure and functional evaluations, this coupling is ideal for deepwater applications where high load operating conditions exist. The HMF riser coupling has been field-proven through many years of worldwide use including drilling the current water depth well record of 10,011 feet in the Gulf of Mexico. The design provides an improved and increased resistance to high tensile loads and large bending moments, conditions common with today’s deepwater drilling operations. The MR - 6E is a dog-style riser connection. To make the connection, the dogs in the box are driven into the profile in the pin, making a fully preloaded connection.

Applications

• Floating drilling units

Product Characteristics & Benefits

• Meets API 16R, class D, E, F, G, H and J
• Stepped diameter design of pin and box simplifies engagement, even with severe vessel movement.
• Ideal for deep water applications where high load operating conditions exist
• No loose parts, all bolts and inserts stay in the pin/box flanges preventing bolt loss and potential thread damage
• Field removable and replaceable nose ring
• Locking bolts preloaded above the rated coupling loads which extends the fatigue life of the riser coupling
• Hydraulic running/test tool facilitates quicker riser running times
• Field replaceable choke and kill line stab subs