METHOD AND DEVICE FOR THE MEASURING PHYSICAL PARAMETERS IN A PRODUCTION SHAFT OF A DEPOSIT OF UNDERGROUND FLUID STORAGE RESERVOIR

In an operating well of a deposit or underground fluid storage reserve, which operating well includes an outer wall ( 1 ) delimiting, with a central operating tubing ( 2 ) of the well, an annular space ( 4 ) in which is placed a protective -sheath ( 6 ) of an electrical link cable ( 5 ) between a surface installation and elements arranged in the well, a device for the measurement of physical parameters includes at least one compact, removable, sealed measuring subassembly ( 8 ) arranged in a housing ( 3 ) in communication with the interior of the central tubing ( 2 ) and at least one compact, sealed connecting subassembly ( 7 ) integral with the central tubing ( 2 ) of the well and arranged at least partially in the annular space ( 4 ) in the vicinity of the protective sheath ( 6 ) in order to be connected to the electrical link cable ( 5 ). The sealed measuring subassembly ( 8 ) and the sealed connecting subassembly ( 7 ) have plane contact surfaces ( 95 B, 95 A) each associated with a half-transformer ( 9 B, 9 A) so as to form an inductive coupling between the measuring subassembly ( 8 ) and the connecting subassembly ( 7 ).