Mud saver valve
Mud saver valve
Mud tank with pressurized compartment
Mudline casing hanger assembly
Mudline emergency shutoff for offshore wells
Mudline emergency shutoff for offshore wells
Mudline riser-casing connecting assembly
Mudline suspension system
Mudsaver valve with dual snap action
Mudsaver valve with retrievable inner sleeve
Multi function drill drive system
Multi gas well production arrangement
Multi grouting system
Multi profile performance enhancing concentric drill bit
Multi seam coal bed/methane dewatering and depressurizing...
Multi- port oilfield liner connector
Multi-activity offshore exploration and/or development...
Multi-arm stabilizer for a drilling or boring device
Multi-component cutting element using consolidated rod-like...
Multi-component cutting element using polycrystalline...