Abstract: A subsea wellhead assembly comprises a subsea wellhead, a spool body assembly, a helix, and a tubular bore protector. The spool body assembly is mounted to the wellhead and has an inside surface defining a vertical bore. The spool body assembly has an upper end, a lower end, and a lateral production fluid outlet port. The helix is formed from a tubular member and is positioned in a lower portion of the spool body assembly. The helix has a generally cylindrical outer surface defining an outer diameter and a generally cylindrical inner surface defining an inner diameter, an upper end and a lower end. The tubular member has an organ pipe-shaped cut in the upper end so that the upper end is generally elliptically shaped and forms a pair of arcuate ramps to orient a tubing hanger. The tubular bore protector body has an upper end, a lower end, and a longitudinal axis.

Abstract: A method for connecting a subsea wellhead to a subsea manifold by an articulated flowline comprised of a plurality of flowline segments joined in series by adjustable ball joint connectors each of which comprises a plurality of bolts for clamping the joined segments in a fixed position and means for stretching the bolts by applying a force which does not exceed the yield strength of the bolts to loosen the connection. The method includes attaching one end of the flowline to an outlet of the wellhead, adjusting each of the ball joint connectors to configure the flowline as necessary for attaching the other end of the flowline to the manifold, and attaching said other end of the flowline to the manifold.