US 11,209,559 B2 · Method and system for analyzing a borehole using passive acoustic logging

Abstract

The claimed invention relates to means for analysis of a mineral deposit under development using noise logging. The aim of invention consists in increasing accuracy of sound source position determining at surveying in wells with complicated multi-barrier design. The method for locating an acoustic noise source in a well comprises the stages of: computer simulation of acoustic field generated by one or more sources of acoustic signal in the well; simultaneous recording of acoustic signals inside the wellbore using a device for recording acoustic signals comprising at least two acoustic sensors; locating the sought acoustic signal sources in the well by means of co-processing of computer simulation data and data on acoustic signals inside the wellbore recorded using the aforementioned device.

Claims20

Dependent claims

A method for well analysis using a passive acoustic logging, the method comprising the steps of:

computer simulating the acoustic field generated by one or more sources of acoustic signal inside the well;
recording of acoustic signals inside the wellbore using a device for acoustic signal recording comprising at least two acoustic sensors;
and
locating the said acoustic signal source in the well by co-processing computer simulation data and data on acoustic signals inside the wellbore recorded using the aforementioned device.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

16/647,106Filed 7 Jun 2018

Priority

EA 20179183713 Sep 2017

Published

US 2020/0278464 A13 Sep 2020

Granted

28 Dec 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

G01V 1/288
Processing seismic data, e.g. for interpretation or for event detection: event detection in seismic signals, e.g. microseismics
E21B 47/00
Survey of boreholes or wells
E21B 47/107
Locating fluid leaks, intrusions or movements: using acoustic means
G01V 1/282
Processing seismic data, e.g. for interpretation or for event detection: application of seismic models, synthetic seismograms

Method and system for analyzing a borehole using passive acoustic logging

Life of this patent

Method and system for analyzing a borehole using passive acoustic logging

Life of this patent

Abstract

Claims20