Recognizing global industry demand for more robust and reliable shear rams, T3 Energy Services, A Unit of Robbins & Myers, Inc. embarked on a program to design a Shear All Ram system. The pressure-control design engineers were tasked with creating a totally new system that would dependably shear all drill pipe and casing in the most demanding drilling conditions and at all pressures. Their tireless efforts resulted in a true step-change BOP technology.
Robbins & Myers patented T3 SARTM Shear All Ram addresses the challenges presented by the continuing evolution in drill pipe and extreme drilling programs. The revolutionary SAR was designed to shear virtually all drill pipe and casing in the absolute toughest drilling environments. The SAR blade geometry has been successfully tested against a broad range of drill pipe and casing sizes, regardless of pipe position in the wellbore.
Key features and benefits of T3’s SAR include:
• Shears all sizes and diameters of drill pipe and casing – T3’s comprehensive field testing program has proven that SAR dependably shears the full range of drill pipe and casing being used today.
• Enables multiple shear and sealing sequences without damaging blades – Unlike other shear ram designs, SAR repeatedly shears heavy weight drill pipe and large diameter casing with only minimal damage to blade and ram block integrity. Passing NDE is not an issue. No other shear rams come close.
• Reduces closing force - The unique blade geometry significantly reduces the force required to shear allowing specially designed interchangeable BOP bonnets to handle any situation at low hydraulic operating pressures.
• Fully closes and contains regardless of fixed offset position in wellbore – Besides the SAR’s ability to center all diameters, it also handles situations in which the drill pipe has buckled or been rigidly positioned to the side of the wellbore. SAR’s patented blade design gets behind the pipe and pulls it inward while simultaneously scissoring through it.
• Optimizes shearing function with a patented design.
SAR reliably shears against all drill pipe and casing, even when rigidly fixed against the side of the wellbore.