Apparatus and method for removing soil from a conduit
AssigneeEquinor Energy AS
InventorsLorents Reinås, Morten Sæther, Harald Sigurd Nesse, Kjell Einar Ellingsen, Jone Stangeland, Geir Gundersen Fuhr
Life of this patent
Estimating the term…
Abstract
An apparatus for removing soil from a conduit for a subsea well that is forced or placed into a seabed is provided. The apparatus comprises a soil disturbance device to displace soil within the conduit before drilling is performed. A method of removing soil from a conduit for a subsea well that is forced or placed into a seabed is also provided. The method comprises using a soil disturbance device to displace soil within the conduit before drilling is performed.
Claims22
An apparatus for removing soil from a conduit for a subsea well that is forced or placed into a seabed, wherein the conduit has a first free end that is above or approximately level with the seabed and a second buried end that is embedded in the seabed, and the apparatus comprises a closure means for closing the free end of the conduit and a soil disturbance device for displacing soil within the conduit before drilling is performed, wherein the apparatus is configured to be releasably fixed onto the conduit and when the apparatus is installed on the conduit, the conduit is closed at the free end using the apparatus.
A method of removing soil from a conduit for a subsea well that is forced or placed into a seabed, wherein the conduit has a first free end that is above or approximately level with the seabed and a second buried end that is embedded in the seabed, the method comprises closing the free end of the conduit with a closure means, and using a soil disturbance device to displace soil within the conduit before drilling is performed.
Dependencies are inferred from the claim text.