Multiterminators for riser pipes

E - Fixed Constructions – 21 – B

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166/51.4

E21B 33/00 (2006.01) B63B 21/50 (2006.01) E21B 7/128 (2006.01) E21B 17/01 (2006.01) E21B 19/00 (2006.01)

Patent

CA 1193187

"MULTITERMINATORS FOR RISER PIPES ABSTRACT OF THE DISCLOSURE This invention is an improvement over the simple terminator, which has been applied at the mudline, and at the platform level, to resist very large stresses in the riser pipes when the vertically moored platform (VMP) is subjected to wind, tide and current. A second or short terminator is used with the terminator to form a multiter- minator which results in the length and weight of the ter- minator assembly for a given site being greatly reduced from that of the prior art terminator. Thus, the cost of construction of the terminator assembly is drastically reduced with the use of our invention. Also disclosed is a novel bearing arrangement between the VMP and the termi- nator assembly.

421278

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