Gap sub assembly

Details Gap sub assembly Gap sub assembly

E - Fixed Constructions

21

B

E21B 17/00 (2006.01) E21B 47/12 (2012.01)

Patent

CA 2496170

The gap sub assembly comprises a pair of electrically conductive subs. Each sub has a threaded pin and box. A pin and box are threaded together to form a connection. An electrically insulating, woven fabric overlies and conforms with the threads of the connection pin. An electrically insulating, annular washer separates the seal faces of the connection. The assembly functions to provide an electrical discontinuity when incorporated into a conductive drill string.

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