(19)
(11) EP 0 020 416 A1

(12)

(43) Date of publication:
07.01.1981 Bulletin 1981/01

(21) Application number: 79901156.0

(22) Date of filing: 28.09.1979
(51) International Patent Classification (IPC): 
E21B 17/ 00( . )
 E21B 47/ 12( . )
(86) International application number:
PCT/GB1979/000158
(87) International publication number:
WO 1980/000727 (17.04.1980 Gazette 1980/08)
(84) Designated Contracting States:
DE FR LU NL SE

(30) Priority: 29.09.1978 GB 19380059778

(71) Applicants:
  • HORCHLER, Stephen Alexander
    Dalkeith, Midlothian (GB)
  • Secretary of State for Energy
    London SW1P 4QJ (GB)

(72) Inventor:
  • HORCHLER, Stephen Alexander
    Dalkeith, Midlothian (GB)

   


(54) IMPROVEMENTS IN AND RELATING TO ELECTRICAL POWER TRANSMISSION IN FLUID WELLS