Patent ID: 8919448
Filing Date: 2014-12-30
Classification: E21B

Abstract:
1. A modular stress joint for connection between a subsea structure and a compatible engagement structure for compensating for forces applied to the subsea structure, the modular stress joint comprising: a base member secured to the subsea structure by means of a swivel flange compressing the base member therethrough, the base member having a first end and a second end, wherein the base member comprises a first length, and a first wall thickness; and a plurality of additional members secured to the second end of the base member, wherein the plurality of additional members comprises additional lengths and additional wall thicknesses, wherein at least one of the plurality of additional members comprises a different length, diameter, shape, wall thickness, material, or combinations thereof, from other additional members of the plurality of additional members, wherein a sum of the first length and the additional lengths defines a total length, wherein a combination of the first wall thickness and the additional wall thicknesses defines an overall wall thickness, and wherein the total length and the overall wall thickness correspond to forces applied to the subsea structure secured to said base member, said at least one additional member, or combinations thereof.