The STEP™ cuttings re-injection (CRI) system's design is based on well proven and reliable technology. The unit produces slurry suitable for subsea re-injection.
Features and benefits
- High quality components ensure high reliability
- Optimum design allows quick and easy change or maintenance of wear parts
Cuttings are fed directly into the crushing tank from the shale shakers/solids control system, and blended with seawater with a high degree of circulation and shearing/crushing by specially designed grinding pumps.
The slurry is circulated within the cuttings tank and over the classifying shaker(s). Oversized cuttings are separated and returned to the cuttings tank, while the slurry that enters the slurry tank has the correct particle size distribution for subsea injection.
Pipe manifolds are used to give the operator as much flexibility as possible during the handling of large volumes of cuttings. The control system allows full remote operation in either manual or automatic mode. The latter is based on internal re-circulation between the tanks, until the slurry meets the desired viscosity and density as desired. The control system can be integrated as part of the mud control system or provided as a stand-alone arrangement.
The system can be delivered skid mounted or integrated into the rig design. Additional equipment such as operator cabins, injection pump(s), slurry holding tank(s), etc. are also an optional part of the delivery.