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AssigneeInstitut Francais du Petrole
InventorsJean-Francois Giannesini, Jean-Baptiste Fay
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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.
A device for carrying out measurements and/or servicing in a well bore, said device comprising tubing adapted to be coiled around a drum, a measuring and/or servicing instrument arranged at a lower end of said tubing, said tubing containing at least one transfer line adapted to transfer energy or information and arranged within an inner space defined by said tubing, said line also being arranged within a rod comprising a polymeric material and reinforcing fibers, said rod having a longitudinal axis extending close to a longitudinal axis of the tubing, and being elastic during flexure and exhibiting compressive strength adapted to allow introduction of the rod into said tubing by a thrust force.
A process for assembling a device for carrying out measuring and/or servicing in a well bore, said tubing having a rod arranged centrally therein, which process comprises the following steps:
Dependencies are inferred from the claim text.