Acoustic Attenuation Specfroscope (AAS) as Process Spectroscope for Drilling Mud With the new redundant Ultrasonic sensors from IBJ technology (www.ibj-technology.com) powerful process-spectroscope can be built up. Beneficial is to use multiple devices to monitor the process of drilling in deepwater drilling. The sound spectroscpe are very helpful in finding oil and gas in deeper formations. Particularly useful is use in pressurized drilling muds. The study of nonlinear vibrations in the sound and ultrasonic range is a very practical and high resolution methods to identify the flow of liquids or gases, preferably hydrocarbons in the well bore in real time during the drilling. The sound pressure is the function to ensure enough also in gas. All muds, regardless of whether oil based or water based lb/gal can be safely monitored with the highest densities of up to about 20 lb / gal on inflow. Furthermore, changes in the turbulence or the profile of the flow can be detected in the pipes immediately. Evaluation of sound velocity is so high resolution, even the smallest tributaries are recognized by gaseous or liquid hydrocarbons. Each process is customizable by the sampling rate and the FFT analysis. With multiple devices along the mud riser an expansion can be detected in a timely manner by gas. The Ultrasonic sensors developed by IBJ technology robust designed for use in the deep sea. Universally, these sensors can be fitted in all types of marine riser or mud lines. The Drilling Mud Spectroscopes can be with all solutions to the early gas kick detection and combine with the inflow control devices. IBJ technology offers its solutions to all interested parties to use.

1. Drilling Mud
Sound Spectroscope
Acoustic Attenuation Spectroscopy (AAS)
Solutions to the safety of deep water drilling
F.-M. Jäger
IBJ Technology
Colkwitzer Weg 7
04416 Markkleeberg
Germany
fmj@ibj-technology.com
www.ibj-technology.com
IBJ Technology
Ingenieurbüro Jäger 1

2. Sound Spectroscopy for drilling mud
as a special application of the Acoustic Attenuation
Spectroscopy (AAS)
Previous state of the art :
„Acoustic Attenuation Spectroscopy (AAS) is commonly used to measure
particle size distributions (PSD) in the range 5 nm to 100 microns of
aqueous, as well as, non-aqueous colloidal samples such as Chemical
Mechanical Polishing (CMP) slurries, Ceramic Slips, Printing Inks, Minerals,
Catalysts, Metal Oxides, Pigments, Cosmetics, O/W and W/O emulsions,
and others.
Commonly measured attenuation levels are in the range of near zero to
over 100 dB/cm in the frequency range 1-100 MHz. The percent solids level
(discrete-phase concentration) of measured samples is typically in the range
0.1 to 60% volume although Greenwood et. al. have used long-path
measurements on lower-concentration samples. „
Acoustic Attenuation Spectroscopy for Process Control of Dispersed Systems
J. Gabriel DosRamos, Matec Applied Sciences, 56 Hudson St., Northborough, MA 01532 USA
IBJ Technology
Ingenieurbüro Jäger Mud Sound Spectroscope 2

3. Sound Spectroscope detected gas bubbles
Acoustic Attenuation Spectroscopy (AAS)
Long Sound path without reflection on the drill pipe
IBJ Technology
Ingenieurbüro Jäger Mud Sound Spectroscope
3
1 inch Gas
bubbles in water
based mud

4. Sound Spectroscope detectect fluid bubbles
Acoustic Attenuation Spectroscopy (AAS)
Long Sound path without reflection on the drill pipe
IBJ Technology
Ingenieurbüro Jäger Mud Sound Spectroscope
4
immiscible liquid
hydrocarbons in
water based mud

5. Acoustic Attenuation Spectroscopy in different
densities of mud
water based mud
11,3 lb/gal Bentonite
More information on the attenuation and speed of mud:
IBJ Technology
Ingenieurbüro Jäger Mud Sound Spectroscope
5
process water
http://de.slideshare.net/fmj2/experimentalstudy-measurement-of-sonic-speed-of-drilling-muds-under-shear-stress

6. Acoustic Attenuation Spectroscopy in different
densities of mud
water based mud 15,6 lb/gal
Barite
More information on the measurement of mud:
IBJ Technology
Ingenieurbüro Jäger Mud Sound Spectroscope
6
water based mud 20,2 lb/gal
Barite
http://de.slideshare.net/fmj2/experimentalstudy-measurement-of-sonic-speed-of-drilling-muds-under-shear-stress

7. Acoustic Attenuation Spectroscopy in different
densities of mud
0,5 inch Gas
bubbles in
More information on the measurement of mud:
http://de.slideshare.net/fmj2/experimentalstudy-measurement-of-sonic-speed-of-drilling-muds-under-shear-stress
IBJ Technology
Ingenieurbüro Jäger Mud Sound Spectroscope
7
water based mud
20,2 lb/gal
Barite

8. Sound Spectroscope for all Solutions
Acoustic Attenuation Spectroscopy (AAS)
The Mud spectroscopes can be with all the
solutions for early gas kick detection and
combined with the inflow control devices.
All muds, regardless of whether oil based
or water based can be safely monitored
with the highest densities of up to about
20 lb / gal on inflow.
Evaluation of sound velocity is so high
resolution, even the smallest tributaries are
recognized by gaseous or liquid
hydrocarbons.
IBJ Technology
Ingenieurbüro Jäger Mud Sound Spectroscope 8

9. Drilling Mud Spectroscope for the Deep Sea
Acoustic Attenuation Spectroscopy (AAS)
Same sensors for all applications
Sensor
IBJ Technology
Ingenieurbüro Jäger Mud Sound Spectroscope
9
Sensor
Sensor
Sensor
Sensor

10. Drilling Mud Spectroscope for the Deep Sea
Acoustic Attenuation Spectroscopy (AAS)
IBJ technology offers its
solutions to all interested
parties to use.
Patents pending
Vorrichtung und Verfahren zur frühen
Erkennung von Zuflüssen in
Untergrundgasbohrungen
Deutschland DE102014003552
Angemeldet 12. März 2014
Vorrichtung und Verfahren zur frühen
Erkennung von Zuflüssen in
Untergrundbohrungen
Deutschland DE102014014668
Angemeldet 1. Oktober 2014
IBJ Technology
Ingenieurbüro Jäger Mud Sound Spectroscope 10