Electrically insulating gap subassembly

摘要

An electrically insulating gap subassembly for inclusion in a pipe string (30). The subassembly comprises: a first tubular member (90) having a threaded end connector; a second tubular member (98) having a threaded end connector; and an isolation subassembly (94) having first and second threaded end connectors. The first threaded end connector of the isolation subassembly (94) is threadably coupled to the threaded end connector of the first tubular member (90) and the second threaded end connector of the isolation subassembly (94) is threadably coupled to the threaded end connector of the second tubular member (98). The isolation subassembly (94) is made of aluminum. <IMAGE>