INSULATED TUBING STRING, INSULATED TUBING CONNECTOR AND METHOD OF USE FOR DOWNHOLE APPLICATIONS

摘要

An insulated tubing member for coupling to an adjacent insulated tubingmember. Aconnector couples the insulated tubing members and includes an inner surfacedefining a passage in fluid communication with fluid-receiving channels of theadjacent insulated tubing members. The connector includes a first endincluding anouter threaded surface coupled to the inner threaded surface of the outertubing, andan inner threaded surface coupled to the outer threaded surface of the innertubing, asecond end for coupling to the adjacent insulated tubing member, and includinganouter threaded surface and a circumferentially extending groove in the innersurface,the outer threaded surface for coupling to a second inner threaded surface ofanouter tubing of the adjacent insulated tubing member; a sealing elementreceived inthe groove. The second end of the connector sized for axial expansion of aninnertubing of the adjacent insulated tubing member.