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Simulation and inversion of ultrasonic pitch-catch through-tubing well logging with an array of receivers

Simulation and inversion of ultrasonic pitch-catch through-tubing well logging with an array of receivers

Kategori
Tidsskriftspublikasjon
Sammendrag
Current methods for ultrasonic pitch-catch well logging use two receivers to log the bonded material outside a single casing. For two casings separated by a fluid, we find by simulation that increasing the number of receivers provides a better picture of the effect of the bonded material outside the second casing. Inverting simulated measurements with five receivers, using a simulated annealing algorithm and a simple forward model, we find for a subset of simulations that we can estimate the impedance of the material outside the outer casing.
Språk
Engelsk
Forfatter(e)
Institusjon(er)
  • SINTEF Digital / Connectivity Technologies and Platforms
  • Equinor
År
2017
Publisert i
NDT & E international
ISSN
0963-8695
Årgang
85
Side(r)
72 - 75