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MC 252 Incident Response. Isolation Valve Installation Readiness. Trevor Smith/Mark Nichols 11 May 2010. Problem Statement. Capping of the well with the dual ram or isolation valve assembly will require:
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MC 252 Incident Response Isolation Valve Installation Readiness Trevor Smith/Mark Nichols 11 May 2010
Problem Statement Capping of the well with the dual ram or isolation valve assembly will require: • stabbing into a flange opening which may be obstructed by debris and flowing oil and gas • aligning and bolting up a flange connection which is designed for make-up on the drill floor • and performing this for the first time at 5000ft water depth, suspended from a drill rig Proposal: perform onshore and/or onshore trials to maximize probability of success
Schedule DRAFT
Other Issues • Decide if trials are necessary, if so which & when • Define Accountabilities • Confirm ROV vessel for flange unbolting • Confirm ROVs for flange make-up (DD2 or other support vessel)