Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: sent in the annulus. 158 After the BOP stack was recovered from the seabed, pictures taken from the DDII relief well rig of the hanger and seal assembly showed no erosion. Had hydrocarbons flowed up the annulus, the outside of the hanger and seal assembly likely would have shown effects of erosion due to hydrocarbon flow. Because the evidence does not support the theory that hydrocarbons flowed up the annulus, the Panel concluded that the nitrified cement slurry used in the annulus likely did not fail. Scenario 2: Production Casing and Related Components from above the Top Wiper Plug at 18,115 feet Under this scenario, hydrocarbons would have flowed from the reservoir through the crossover joint of the tapered casing string, into the well and up the riser to the rig. The Panel considered the crossover point to be a possible source of flow because it was manufactured separately from the other tubular elements in the well. If hydrocarbons had flowed in this path, it would mean that the annular cement isolating th...
View Full Document

This note was uploaded on 01/18/2014 for the course BEPP 305 taught by Professor Nini during the Fall '11 term at UPenn.

Ask a homework question - tutors are online