Cameron International Corporation

Cooper Cameron Corporation

Paul Bunch

Eric Dale Larson

Michael W Spiering

Maoye Sun

Christopher Nault

Kevin Shahrpass

A subsea connection for a pressurized fluid flow path includes a body comprising a body flow path and a spool attachable to the body. The spool includes a spool flow path in fluid communication with the body flow path with the spool attached to the body and a corrosion resistant layer. A seal is also included and is actuatable against the corrosion resistant layer to form a seal between the body and the spool.

Connection for a pressurized fluid flow path

In accordance with certain embodiments, the present invention provides a connector for attaching to a multi-toothed profile on a wellhead features a tooth profile that staggers loading preferably starting at a loading surface furthest from the connector body sitting on the wellhead and moving toward the connector body. The staggered loading more evenly distributes stresses on the matching loading surfaces as compared to the result of using a tooth profile on the connector that nearly exactly matches the profile on the wellhead. The joint can then take advantage of an increased preload and exhibit improved stress characteristics when operating at high loading conditions.

Stress distributing wellhead connector

A composite pipe assembly comprises a pipe having a pipe wall, a housing comprising a tubular portion having an inner surface, said tubular portion being disposed around the outside of the pipe, and a tubular forge member having an outer surface. The forge member is disposed within the housing whereby a portion of the pipe wall is disposed between the inner surface of the tubular portion of the housing and the outer surface of said forge member. The forge member is deformed radially outwards against the pipe and the housing, preferably to beyond its yield point, and the tubular portion of the housing is thereby deformed radially outwards to a partial yield point. As a result, the tubular portion of the housing applies a compressive force radially inwards against the pipe wall and the forge member applies a force radially outwards against the pipe wall which serves to secure the housing to the pipe and provide a seal between the pipe and the inner surface of the tubular portion of the housing. The assembly is useful for providing an end fitting to a composite pipe, providing a repair to a section of damaged pipe, or providing a joint between two sections of pipe. The forge member and housing may both be applied to an existing composite pipe in order to prepare the assembly. Alternatively, the composite pipe may have its end portion formed around the forge member, for subsequent installation of a housing. The assembly may be employed with a composite pipe comprising a metallic liner, in which the end portion of the metallic advantageously forms the forge member.

Growing community of inventors

Houston, TX, United States of America

Paul Bunch