Measuring and testing – Borehole or drilling – Downhole test
Patent
1993-05-10
1994-10-04
Housel, James C.
Measuring and testing
Borehole or drilling
Downhole test
33702, 33719, 33720, 33734, 33735, 324206, 374 49, 374136, 374186, E21B 4700, G01B 704
Patent
active
053515315
ABSTRACT:
A depth measuring system for a slickline utilized in a well bore operation where the slickline is in a non-slip relationship with the circumference of a calibrated measuring wheel and the revolutions of the wheel are utilized to provide a first length measurement. A load cell is provided to measure tension in the slickline so that length elongation of the slickline due to tension can be determined. A temperature differential determination is made so that corrections in length can be made for the temperature effects. The temperature differential can be temperature effects on the measuring wheel and/or temperature effects of the slickline in the well bore. The measuring wheel determination of length is algebraically summed with the tension elongation and changes due to temperature to provide a more accurate indication of the depth measurement in the well bore.
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Cano Milton I.
Fidler Donald H.
Housel James C.
Kerr Measurement Systems, Inc.
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