(19)
(11) EP 0 141 726 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.06.1988 Bulletin 1988/25

(43) Date of publication A2:
15.05.1985 Bulletin 1985/20

(21) Application number: 84402125

(22) Date of filing: 23.10.1984
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 24.10.1983 US 544659
24.10.1983 US 544660
24.10.1983 US 544658
24.10.1983 US 544657

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

(72) Inventors:
  • Hoppe, Joachim Albert
     ()
  • Wambaugh, John Olson
     ()
  • Shonrock, Clinton
     ()

   


(54) Method and apparatus for sealing a well casing


(57) A wireline method and apparatus for sealing a well casing, when a length of production tubing is disposed within the well casing, utilizes a sealing means having a first diameter less than the diameter of the production tubing, and the sealing means is compressible to a second diameter which sealingly conforms to the diameter of the well casing, to prevent fluids disposed in the well casing from flowing through the well casing to above, or below, the sealing means.






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