Apparatus for detecting acoustic signals in a housing

Register USPTO Patent
Application Number 15103750
Grant Number 10215017
Status In Force
Filing Date 2014-12-10
First Publication Date 2016-10-20
Publication Date 2016-10-20
Grant Date 2019-02-26
Owner Hifi Engineering Inc. (Canada)
Inventor
  • Hull, John
  • Jalilian, Seyed Ehsan

Abstract

An apparatus for detecting acoustic signals in housing is disclosed. The housing may be housing of a wellbore, riser, tubular or pipeline or the like for transporting fluids or housing of a vessel for storing fluids. The apparatus comprises a longitudinally extending tube having an internal surface and an external surface, a longitudinally extending fiber optic cable disposed within the tube, and one or more than one longitudinally extending outer fins radially extending outwards from and coupled with the external surface of the tube. The outer fin is configured to project towards the housing and allows fluid between the external surface of the tube and the housing when the apparatus is positioned in the housing. The apparatus may alternatively comprise a longitudinally extending fiber optic cable coated with a coating and one or more than one longitudinally extending outer fin radially extending outwards from and coupled with the coated fiber optic cable.

IPC Classes  ?

  • E21B 47/00 - Survey of boreholes or wells
  • E21B 47/10 - Locating fluid leaks, intrusions or movements
  • G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
  • G01M 3/04 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
  • G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
  • G01M 3/24 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations