초록 ▼

A connector is disclosed for use with composite spoolable pipe such as for use in well logging and workover operations in oil wells. The pipe which is spoolable is comprised of an outer composite structure containing several plies of high strength and stiffness fibers embedded in a resin material su

A connector is disclosed for use with composite spoolable pipe such as for use in well logging and workover operations in oil wells. The pipe which is spoolable is comprised of an outer composite structure containing several plies of high strength and stiffness fibers embedded in a resin material such as epoxy. The fibers are oriented to resist internal and external pressure and provide low bending stiffness. Fibers of high strength and modulus are embedded and bonded into a matrix that keeps the fibers in position, acts as a load transfer medium and protects the fibers from environmental damage. The plastic binder in which the fibers are embedded to form the matrix will have a modulus of elasticity (hereinafter modulus) that exceeds 100,000 psi. Typically, a liner may be employed in the pipe to serve as a structural member, one function of which is pressure containment to resist leakage of internal fluids within the tubing. A wear surface is employed as an outer layer and may be comprised of a binder containing particles of a tough material.

대표청구항 ▼

[ We claim:] [1.] 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 compos

[ We claim:] [1.] 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; anda 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.