Flotation riser

Details Flotation riser Flotation riser

E - Fixed Constructions

21

B

114/58.2

E21B 7/12 (2006.01) E21B 17/01 (2006.01) F16L 1/24 (2006.01)

Patent

CA 1240566

Abstract of the Disclosure A flotation riser having a series of annular chambers with a riser string extending in free-standing relation through said chambers, means for supplying gas to the chambers to control buoyancy, means to supply gas to a plurality of the lowermost chambers to provide an emergen- cy supply of deballasting gas, and means for remotely releasing said supply of gas into the chambers above to render the flotation riser free standing to permit release from the floating platform during emergencies. A method of storing emergency deballasting gas and for emergency deballasting of the chambers to render the flotation riser free-standing including the steps of supplying gas to the lowermost chambers, retaining the gas in said lowermost chambers, and remotely releasing the gas and conducting it to higher chamber to deballast such chambers sufficient so that said flotation riser is free-standing.

502422

Affiliated with

Also associated with

Rating

Flotation riser does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flotation riser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flotation riser will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1175135