Composite coiled tubing end connector

A field serviceable connector for attaching a spoolable composite pipe to a service member, wherein the pipe is constructed of multiple plies of fibers embedded in a resin matrix, the connector comprising;

• a connector housing having a first threaded surface for connecting the composite pipe with the service member, a second threaded surface for assembling said housing onto the composite pipe, and a housing bore for receiving an end of the pipe;
• a seal carrier received within said housing bore and within a bore in said composite pipe when the connector is assembled on said pipe, said seal carrier having means for carrying annular seals thereon to seal between said housing bore and said seal carrier and between said seal carrier and the bore in said pipe;
• a load transfer collar carried about the outer surface of said composite pipe for threadedly engaging the second threaded surface on said housing to thereby transfer loads on said composite pipe into said housing;
• a load transmitting ferrule positioned about the outer surface of the composite pipe and engaged by said connector housing and by said load transfer collar for moving and holding said ferrule into gripping contact with said composite pipe;
• a seating ring constructed of a material having a hardness of 80 to 100 durometer, said seating ring protecting the exposed composite pipe end from exposure to materials carried in the pipe bore;
• and
• a load support arranged for being positioned in the bore of the composite pipe at a position opposite said load transmitting ferrule positioned on the outer surface of the composite pipe for resisting deformation of the composite pipe when said ferrule is engaged by said connector housing and by said load transfer collar and moved into gripping contact on the composite pipe.

A field serviceable connector for attaching a spoolable composite pipe to a service member, wherein the pipe is constructed of multiple plies of fibers embedded in a resin matrix, the connector comprising;

• a connector housing having a first threaded surface for connecting the composite pipe with the service member, a second threaded surface for assembling said housing onto the composite pipe, and a housing bore for receiving an end of the pipe;
• a seal carrier received within said housing bore and within a bore in said composite pipe when the connector is assembled on said pipe, said seal carrier having means for carrying annular seals thereon to seal between said housing bore and said seal carrier and between said seal carrier and the bore in said pipe;
• a load transfer collar carried about the outer surface of said composite pipe for threadedly engaging the second threaded surface on said housing to thereby transfer loads on said composite pipe into said housing;
• a load transmitting ferrule positioned about the outer surface of the composite pipe and engaged by said connector housing and by said load transfer collar for moving and holding said ferrule into gripping contact with said composite pipe, said load transmitting ferrule having teeth formed on its inner surface which are arranged for penetrating into at least one of the plies of fibers of the composite pipe when the connector is made up on the composite pipe, said teeth being of sufficient radial length to at least extend into the first fiber laminate of the pipe body, and said teeth being arranged in circumferential and longitudinal rows and having a substantially perpendicular front load flank to provide a maximum axial load surface when engaged with the composite pipe;
• and
• a load support arranged for being positioned in the bore of the composite pipe at a position opposite said load transmitting ferrule positioned on the outer surface of the composite pipe for resisting deformation of the composite pipe when said ferrule is engaged by said connector housing and by said load transfer collar and moved into gripping contact on the composite pipe.

A field of serviceable connector for attaching a spoolable composite pipe to a service member, wherein the pipe is constructed of multiple plies of fibers embedded in a resin matrix, the connector comprising;

• a connector housing having a first threaded surface for connecting the composite pipe with the service member, a second threaded surface for assembling said housing onto the composite pipe, and a housing bore for receiving an end of the pipe;
• a seal carrier received within said housing bore and within a bore in said composite pipe when the connector is assembled on said pipe, said seal carrier having means for carrying annular seals thereon to seal between said housing bore and said seal carrier and between said seal carrier and the bore in said pipe;
• a load transfer collar carried about the outer surface of said composite pipe for threadedly engaging the second threaded surface on said housing to thereby transfer loads on said composite pipe into said housing;
• a load transmitting ferrule positioned about the outer surface of the composite pipe and engaged by said connector housing and by said load transfer collar for moving and holding said ferrule into gripping contact with said composite pipe, said load transmitting ferrule having teeth formed on its inner surface which are arranged for penetrating into at least one of the plies of fibers of the composite pipe when the connector is made up on the composite pipe, and
• a seating ring positioned against an end of said composite pipe to protect the composite pipe end from exposure to materials carried in the composite pipe bore.