2007-11-23_HYDROLOGY - M1977300 ‎(3)‎

• Permit No: M1977300
• IBM Index Class Name: HYDROLOGY
• Doc Date: 11/23/2007
• Doc Name: Hydro Evcal- Vol. II- Ap. B- Packer Test Methods & Results
• From: Cotter and Whetstone
• To: DRMS
• Permit Index Doc Type: Hydrology Report
• Email Name: DB2
• Media Type: D
• Archive: No

Appendix B - Packer Test Methods and Results i
TABLE OF CONTENTS
1. INTRODUCTION .................................................................................................................................... 1
2. PACKER TESTING METHOD ............................................................................................................... 1
2.1 Approach ............................................................................................................................... 1
2.2 Equipment ............................................................................................................................. 1
2.3 Test Methods for Very Low Permeability Conditions .......................................................... 3
2.4 Test Methods for Moderate Permeability Conditions ........................................................... 5
3. FIELD PROCEDURES ............................................................................................................................ 5
4. THEORY AND ANALYSIS .................................................................................................................... 6
4.1 Theory - Darcy's Law ........................................................................................................... 6
4.2 Steady-State Flow (Theim Analysis) .................................................................................... 7
4.3 Determination of Compressibility ......................................................................................... 7
4.4 Constant Head Injection Test ................................................................................................ 7
4.5 Falling Head (Slug Injection) Test Analysis (Hvorslev, 1951) ............................................. 8
4.6 Shut-in Test Analysis (Horner, 1951) ................................................................................... 9
5. PACKER TEST RESULTS .................................................................................................................... 10
6. REFERENCES ....................................................................................................................................... 13
LIST OF TABLES
Table 1. Underground Packer Tests Performed at the Schwartzwalder Mine .................................... :......... 11
Table 2. Summary of Packer Permeability Test Results .............................................................................. 12
LIST OF FIGURES
Figure 1. Underground Packer Test Apparatus .............................................................................................. 2
Figure 2. Typical Packer Test Pressure Response .......................................................................................... 3
Figure 3. Bleed-off Test Conducted in Underground Drill Hole ................................................................... 4
4109B.071116 Whetstone Associates