E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/04 (2006.01) E21B 17/00 (2006.01) E21B 17/02 (2006.01)
Patent
CA 2420402
An electrical isolation connector subassembly for interconnecting adjacent tubular drill rods of a drilling system used in drilling bore holes in earth formations, the connector comprising an electrically insulative sleeve being sandwiched between two electrically isolated subassembly components, the sleeve providing an exterior gap between the edges of the spaced apart electrically isolated components, the exterior gap having a width of less than 50 cm.
Gurjar Rishi
Sutherland Michael T.
Ryan Energy Technologies
Sim & Mcburney
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