Managed Pressure Cementing in Deepwater Environment, Evolving from Saving the Well with Perfectly Executed Challenging Primary Cementing Operations to Bring Back Wells to Productive Life with State-Of-The-Art Remedial Cementing Jobs on Controlled Pressure Manner

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Managed Pressure Cementing has been utilized in many applications where MPD equipment is installed on the rig. This came as a consequence of having operators challenging the initial scope of using the MPD technology not just for drilling through a narrow operating window, in many cases by using a statically underbalanced mud weights, but also for tripping, logging, coring, running casing. Then of course to cement it and guarantee the isolation required for a subsequent successful hole section or simply a well set production tubular. Particularly in deepwater operations where the riser represents a benefit in terms of balancing the well and get the hydrostatic column to help with the execution of balancing the well, running the casing, and performing the multistage cementing job. Where the booster pumps bring the benefit of constant monitoring and annular pressure control. Many operators have seen the benefit of using MPD on its wider solutions range adopting Managed Pressure Cementing from the planning phase. However, we are currently witnessing a step ahead on what the technique can provide as smart solution when performing remedial cementing operations. These usually involve different environment and restrictions as well as regulations, and what is brought to the convenience of the project revamping purpose. This paper gives examples for planning and execution of primary and remedial Managed Pressure Cementing in deepwater drilling operations.