(19)
(11) EP 0 075 520 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.09.1985 Bulletin 1985/38

(43) Date of publication A2:
30.03.1983 Bulletin 1983/13

(21) Application number: 82401712

(22) Date of filing: 21.09.1982
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 21.09.1981 US 304443

(71) Applicants:
  • SCHLUMBERGER LIMITED
     ()
  • SOCIETE DE PROSPECTION ELECTRIQUE SCHLUMBERGER
     ()

(72) Inventor:
  • Zimmerman, Thomas H.
     ()

   


(54) Perforating gun indexed wiring harness


(57) A wiring harness for selective perforating guns uses a single harness configuration for all connections. Each harness increments the relative positions of the harness conductors, while the conductor used in each ha ness for firing its associated detonator is the same. With diode-steering, two harnesses are used, one which increments and one which does not.






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