Our award-winning Active Control Device (ACD) is a step-change in deepwater managed pressure drilling (MPD) systems. The technology was showcased by the Offshore Technology Conference’s 2019 Spotlight on New Technology award program for advanced, innovative technologies, and was recognized by Hart Energy’s prestigious 2019 Meritorious Awards for Engineering Innovation for excellence and achievement in the upstream industry. Developed specifically for the high-cost marine environment, the ACD system features a novel hydraulically controlled sealing element that allows active condition monitoring and wear compensation control to significantly reduce maintenance costs and rig downtime. Enabling proactive MPD maintenance improves rig efficiency and dramatically cuts the risk of an unplanned failure. The ACD addresses the inherent deficiencies of conventional, passive rotating control devices (RCD) with dual, non-rotating API 16RCD seal sleeve elements. The device eliminates the RCDs bearing assembly for a significant reduction in maintenance and operating costs. ACD active seal sleeve elements are controlled by adjusting the annular packer closing pressure. As the seal wears, the closing force is maintained to ensure the wellbore seal. Pressure change data informs condition-based monitoring.
Drill String Isolation Tool
Our Drill String Isolation Tool (DSIT) is an industry leading riser annular packer that fits a variety of purposes. As the backbone of most existing riser gas handling (RGH) systems in the field, the DSIT enables the rig to quickly close the riser below the termination joint, allowing gas in the riser to be circulated out safely and efficiently. As a key fixture in many MPD specialty joint systems, the DSIT serves as secondary sealing system when changing an ACD or RCD seal element assembly, as well as providing RGH capabilities during non-MPD hole sections.
Our flow spool is a common component in many MPD and RGH specialty joint systems. It serves as a conduit for drilling returns to exit the riser below an ACD, RCD, and provides dual outlets and redundant subsea shut-off valves. This functionality diverts drilling fluids, cuttings and gas safely away from the drill floor while the annulus above it is isolated. The flow spool enables various MPD operations, including applied surface back pressure drilling, pressurized mud cap drilling, and riser gas handling.
Riser Interface Joints
Riser interface joints enable sharing of riser components between rigs with differing riser systems without modifications. Our riser interface joints are non-load sharing and are manufactured by AFGlobal with the minimum ratings of the OEM equipment maintained. Riser interface joints are designed in accordance with API 16F, ABS CDS, and DNV OS E101 and are third-party approved by DNV and/or ABS for all OEM riser flanges.