tis is a general question with no specific well detail. It could be deemed as following up a similar discussion in 2014 but I'm hoping for additional innovation in the past 5 years..
The wells have been inadequately abandoned and need to be re-entered and re-cemented. However they have been severed at 10ft below seabed with either the conductor only or the conductor & surface casing severed in one cut which probably makes for a more difficult re-entry. We'll have to come on with pressure control equipment to allow for drilling out of cement plugs and potential exposure to wellbore pressure, and fatigue resistance may become a consideration as well
Has anyone actually done this or similar operations or know of a service company which has designed a system to do it? Much obliged