Echometer Model-M
Digital Dual Channel Fluid Level Instrument

Also available as a printer-friendly PDF: (PDF: 2169 KB / 42 pages)

 

Table of Contents

 

Introduction

Limits of Liability

Copyright Notice

Trademarks

Table of Contents

1 - Safety Considerations

Echometer Schools

Additional Information

2 - Principles of Acoustic Measurements

Recording and Interpretation of Signals

Depth Calculation

3 – General Description – Model M

Instrument Panel

Wellhead Attachments

Remote Fire Gas Gun

High Pressure Gas Guns

Accessories

4 - Operation

General Recording Procedure

Operation of the Model M with the Compact Gas Gun

Operation of the Model M with the Remote Fired Gas Gun

Recommendations for Optimum Performance

Automatic Gain Setting (AGS) Mode Characteristics

Manual Gain Setting (MGS) Mode Characteristics

Collar Channel Automatic Gain Control (AGC)

Liquid Level Channel Gain Control

5 - Interpretation

6 - Problem Wells

7 - Battery and External Power Information

Important Notes and Instructions for Rechargeable Batteries

8 - Testing/Troubleshooting

Amplifiers Check

Filters Check

Microphone Cable check

Microphone Check

9 - Maintenance

Compact Gas Gun Pressure Rating

Compact Gas Gun Disassembly and Assembly Special Precautions

Remote Fire Gas Gun Pressure Rating

Remote Fire Gas Gun Disassembly and Assembly Special Precautions

10 – Calculation of Bottomhole Pressures

11 – APPENDIX

Fig. 1a - Compact Gas Gun Assembly Drawing

Fig. 1b - Remote Fire Gas Gun Assembly Drawing

Fig. 2 - Echometer Panel

Fig. 3 – Initial Header and System Test (Shown ½ Scale)

Fig. 4 – Data Information Form and Time Stamp

Fig. 5 – Upper/Lower Collars Accented

Fig. 6 – Prove Liquid Level

Fig. 7 – Well With Liner

Fig. 8 – Records of Compression/Rarefaction Initial Pulse

Acoustic Responses from Downhole Anomalies

Amplifiers And Filters Test

Microphone Cable Test

Microphone Test

Rate of Fill-up Graph

Use of Rate of Fill-up Information

Carbon Dioxide Cylinder

Carbon Dioxide Information (CO2)

Nitrogen Information (N2)

Fig. 9 – CO2 Cylinder w/ Hose

Fig. 10 –Filler Connector for 7.5 OZ. CO2 Cylinder