Device for carrying out measuring and servicing operations in a well bore, comprising tubing having a rod centered therein, process for assembling the device and use of the device in an oil well

U.S. Patent Number: 5348097

Abstract: The invention relates to a device for carrying out measuring and/or servicing operations in a well (4), comprising a tubing (2) adapted for being coiled round a drum (1) and a measuring instrument (3) fastened to the end of the tubing. The tubing comprises inwardly a rod (17) elastic in flexure and resisting to compressive stress, well suited for allowing the introduction thereof into tubing (2), notably by thrust. An energy or information transfer line (12) is incorporated during manufacturing of rod (17). Rod (17) is made of a polymeric material comprising reinforcing fibers and it is centered inside the tubing. The invention further relates to a process for assembling the rod in the tubing and to the use of the device in a well producing an oil effluent.

Inventors: Giannesini; Jean-Francois (Saint Cloud, FR), Fay; Jean-Baptiste (Paris, FR)

Assignee: Institut Francais du Petrole (Rueil Malmaison, FR)

Application Number: 07/975,887

Issued: 1994-09-20

Expired: 2006-09-20

Classes: 166/385 ; 166/65.1

Field of search: 166/385,383,250,65.1

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