Automatische Erkennung von Umgebungsparametern mit Azimutal Verteilten Wandlern

Details

Veröffentlichungs-Nr.

EP3995865

Aktenzeichen

EP20306347

Anmeldetag

6. November 2020

Veröffentlichung

21. August 2024

Erteilung

21. August 2024

Rechtsraum

EP

IPC

G01V1/50

Abstract

Methods and apparatus for automatic recognition of environmental parameters with azimuthally distributed transducers. For example, a toolstring is disposed in a cased portion of a borehole penetrating a subsurface formation. The toolstring comprises a module comprising azimuthally distributed acoustic transducers each operable to emit and receive acoustic signals. The module is operated to emit an acoustic signal into fluid surrounding the module in the casing and record data indicative of receipt, by a plurality of the transducers, of acoustic waveforms resulting from interaction of the emitted acoustic signal with the casing, including at least a non-specular diffraction head wave excited by a guided wave that is excited by diffraction of the acoustic signal propagating in the casing metal. Acoustic velocity of the guided wave in the casing metal is determined utilizing the recorded data and geometric parameters of the module.

Anmelder

Firmen

Services Pétroliers Schlumberger
Schlumberger Technology B.V.

Land

🇫🇷 Frankreich

Fachgebiete